subject:(Rolling resistance)

University of Alberta

1. Anand, Ajoy. Scaled test estimation of Rolling Resistance.

Degree: MS, Department of Civil and Environmental Engineering, 2012, University of Alberta

URL: https://era.library.ualberta.ca/files/1r66j243z

► Rolling resistance is a prime factor effecting fuel consumption of an ultra class haul truck. Capital intensive mining industry has always been interested to reduce… (more)

Subjects/Keywords: Rolling Resistance, Concept of scaling

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APA (6^th Edition):

Anand, A. (2012). Scaled test estimation of Rolling Resistance. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/1r66j243z

Chicago Manual of Style (16^th Edition):

Anand, Ajoy. “Scaled test estimation of Rolling Resistance.” 2012. Masters Thesis, University of Alberta. Accessed January 16, 2021. https://era.library.ualberta.ca/files/1r66j243z.

MLA Handbook (7^th Edition):

Anand, Ajoy. “Scaled test estimation of Rolling Resistance.” 2012. Web. 16 Jan 2021.

Vancouver:

Anand A. Scaled test estimation of Rolling Resistance. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2021 Jan 16]. Available from: https://era.library.ualberta.ca/files/1r66j243z.

Council of Science Editors:

Anand A. Scaled test estimation of Rolling Resistance. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/1r66j243z

Brno University of Technology

2. Piskoř, Martin. Konstrukce zařízení pro měření valivého odporu pneumatiky: Design of Device for Tyre Rolling Resistance Measurement.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/60888

► The aim of this thesis is a construction concept of tyre rolling resistance measuring device. The first part deals with the rolling resistance. It describes… (more)

Subjects/Keywords: valivý odpor; součinitel valivého odporu; pneumatika; vozidlo; síla; rolling resistance; rolling resistance coefficient; tyre; vehicle; force

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APA (6^th Edition):

Piskoř, M. (2019). Konstrukce zařízení pro měření valivého odporu pneumatiky: Design of Device for Tyre Rolling Resistance Measurement. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/60888

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Piskoř, Martin. “Konstrukce zařízení pro měření valivého odporu pneumatiky: Design of Device for Tyre Rolling Resistance Measurement.” 2019. Thesis, Brno University of Technology. Accessed January 16, 2021. http://hdl.handle.net/11012/60888.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Piskoř, Martin. “Konstrukce zařízení pro měření valivého odporu pneumatiky: Design of Device for Tyre Rolling Resistance Measurement.” 2019. Web. 16 Jan 2021.

Vancouver:

Piskoř M. Konstrukce zařízení pro měření valivého odporu pneumatiky: Design of Device for Tyre Rolling Resistance Measurement. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/11012/60888.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Piskoř M. Konstrukce zařízení pro měření valivého odporu pneumatiky: Design of Device for Tyre Rolling Resistance Measurement. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/60888

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

3. Hsu, Yao-wen. The Simulation of Basic Billiard Techniques and the Analysis of Frictional Force.

Degree: Master, Mechanical and Electro-Mechanical Engineering, 2010, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702110-115138

► The objective of this thesis is to explore how human beings manipulate their dexterous operation skills to produce follow shot, stop shot, and draw shot… (more)

Subjects/Keywords: rolling resistance; draw shot; stop shot; follow shot; billiard

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APA (6^th Edition):

Hsu, Y. (2010). The Simulation of Basic Billiard Techniques and the Analysis of Frictional Force. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702110-115138

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hsu, Yao-wen. “The Simulation of Basic Billiard Techniques and the Analysis of Frictional Force.” 2010. Thesis, NSYSU. Accessed January 16, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702110-115138.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hsu, Yao-wen. “The Simulation of Basic Billiard Techniques and the Analysis of Frictional Force.” 2010. Web. 16 Jan 2021.

Vancouver:

Hsu Y. The Simulation of Basic Billiard Techniques and the Analysis of Frictional Force. [Internet] [Thesis]. NSYSU; 2010. [cited 2021 Jan 16]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702110-115138.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hsu Y. The Simulation of Basic Billiard Techniques and the Analysis of Frictional Force. [Thesis]. NSYSU; 2010. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702110-115138

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Mississippi State University

4. Robbins, Bryant Andrew. The bedding angle of sand.

Degree: MS, Civil and Environmental Engineering, 2014, Mississippi State University

URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10302014-172658/ ;

► Bedding angle is a fundamental property of a particulate system that describes the resistance to rolling motion of a single grain. Mean trends of… (more)

Subjects/Keywords: piping; pivoting angle; rolling resistance; bedding angle; sand

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APA (6^th Edition):

Robbins, B. A. (2014). The bedding angle of sand. (Masters Thesis). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-10302014-172658/ ;

Chicago Manual of Style (16^th Edition):

Robbins, Bryant Andrew. “The bedding angle of sand.” 2014. Masters Thesis, Mississippi State University. Accessed January 16, 2021. http://sun.library.msstate.edu/ETD-db/theses/available/etd-10302014-172658/ ;.

MLA Handbook (7^th Edition):

Robbins, Bryant Andrew. “The bedding angle of sand.” 2014. Web. 16 Jan 2021.

Vancouver:

Robbins BA. The bedding angle of sand. [Internet] [Masters thesis]. Mississippi State University; 2014. [cited 2021 Jan 16]. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10302014-172658/ ;.

Council of Science Editors:

Robbins BA. The bedding angle of sand. [Masters Thesis]. Mississippi State University; 2014. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10302014-172658/ ;

Texas A&M University

5. Patel, Sagar Devraj. Grain Orientation Texture Control and Its Effects on the Hardness and Abrasion Resistance of Sintered Carbides.

Degree: MS, Materials Science and Engineering, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/157133

► The objective of this research work is to develop and evaluate a fabrication procedure that enables a degree of control over the surface and sub-surface… (more)

Subjects/Keywords: texture; tungsten; carbide; cobalt; rolling; grain; orientation; hardness; abrasion; resistance

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APA (6^th Edition):

Patel, S. D. (2016). Grain Orientation Texture Control and Its Effects on the Hardness and Abrasion Resistance of Sintered Carbides. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/157133

Chicago Manual of Style (16^th Edition):

Patel, Sagar Devraj. “Grain Orientation Texture Control and Its Effects on the Hardness and Abrasion Resistance of Sintered Carbides.” 2016. Masters Thesis, Texas A&M University. Accessed January 16, 2021. http://hdl.handle.net/1969.1/157133.

MLA Handbook (7^th Edition):

Patel, Sagar Devraj. “Grain Orientation Texture Control and Its Effects on the Hardness and Abrasion Resistance of Sintered Carbides.” 2016. Web. 16 Jan 2021.

Vancouver:

Patel SD. Grain Orientation Texture Control and Its Effects on the Hardness and Abrasion Resistance of Sintered Carbides. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/1969.1/157133.

Council of Science Editors:

Patel SD. Grain Orientation Texture Control and Its Effects on the Hardness and Abrasion Resistance of Sintered Carbides. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/157133

University of Newcastle

6. Munzenberger, Paul John. Three dimensional numerical modelling of conveyor belt indentation rolling resistance.

Degree: PhD, 2017, University of Newcastle

URL: http://hdl.handle.net/1959.13/1333784

►

Research Doctorate - Doctor of Philosophy (PhD)

This thesis describes the development and experimental verification of a three dimensional finite element analysis model that can… (more)

Subjects/Keywords: indentation; rolling; resistance; conveyor; viscoelastic; rubber; FEA; experimant

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Munzenberger, P. J. (2017). Three dimensional numerical modelling of conveyor belt indentation rolling resistance. (Doctoral Dissertation). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/1333784

Chicago Manual of Style (16^th Edition):

Munzenberger, Paul John. “Three dimensional numerical modelling of conveyor belt indentation rolling resistance.” 2017. Doctoral Dissertation, University of Newcastle. Accessed January 16, 2021. http://hdl.handle.net/1959.13/1333784.

MLA Handbook (7^th Edition):

Munzenberger, Paul John. “Three dimensional numerical modelling of conveyor belt indentation rolling resistance.” 2017. Web. 16 Jan 2021.

Vancouver:

Munzenberger PJ. Three dimensional numerical modelling of conveyor belt indentation rolling resistance. [Internet] [Doctoral dissertation]. University of Newcastle; 2017. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/1959.13/1333784.

Council of Science Editors:

Munzenberger PJ. Three dimensional numerical modelling of conveyor belt indentation rolling resistance. [Doctoral Dissertation]. University of Newcastle; 2017. Available from: http://hdl.handle.net/1959.13/1333784

University of Newcastle

7. Robinson, Peter William Alexander. Dynamics of open and closed belt conveyor systems incorporating multiple drives.

Degree: PhD, 2016, University of Newcastle

URL: http://hdl.handle.net/1959.13/1312200

►

Research Doctorate - Doctor of Philosophy (PhD)

The incorporation of conveyor systems throughout industry has seen an increase in demand for systems that exceed the… (more)

▼

Research Doctorate - Doctor of Philosophy (PhD)

The incorporation of conveyor systems throughout industry has seen an increase in demand for systems that exceed the specification of conventional conveyors. This coupled with the demand to convey bulk materials over larger distances, at higher speeds and efficiencies, requires the development of a versatile design approach. This thesis explores the design aspects associated with modern pouch conveying systems, and how they vary, and can be adapted from theories used with conventional troughed conveyors. In particular, the indentation rolling resistance (IRR) is explored in detail, as this can account for up to 60% of the drag forces of a system. This is the drag force that arises due to an asymmetric pressure distribution as the idler roll shell indents the bottom cover of the belt. The potential idler roll arrangements for a generic pouch conveying system are analysed, and compared with experimental values. In addition to this, the drive traction attainable from suitable drive stations is analysed. Troughed conveyors typically wrap the conveyor belt around a large drive pulley, generating large amounts of traction. Given the layout of pouch conveying systems, a different approach is required, at multiple locations. As such, pouch conveyors are typically driven through simply supported drive stations, with small areas of contact with the belt. The useable traction from these point contact drives is considered. These theories are then united and applied to a dynamic package capable of handling multiple conveyor designs. This package utilises Finite Element Modelling (FEM) to model the viscoelastic nature of the system, based on the distributed drag forces, and inputs of the conveyor. Lastly, to qualify this theory, experimental analysis is conducted on an on-site installation, and compared with the theoretical results.

Advisors/Committee Members: University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering.

Subjects/Keywords: belt; conveying; pouch; rolling resistance; drive traction; dynamics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Robinson, P. W. A. (2016). Dynamics of open and closed belt conveyor systems incorporating multiple drives. (Doctoral Dissertation). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/1312200

Chicago Manual of Style (16^th Edition):

Robinson, Peter William Alexander. “Dynamics of open and closed belt conveyor systems incorporating multiple drives.” 2016. Doctoral Dissertation, University of Newcastle. Accessed January 16, 2021. http://hdl.handle.net/1959.13/1312200.

MLA Handbook (7^th Edition):

Robinson, Peter William Alexander. “Dynamics of open and closed belt conveyor systems incorporating multiple drives.” 2016. Web. 16 Jan 2021.

Vancouver:

Robinson PWA. Dynamics of open and closed belt conveyor systems incorporating multiple drives. [Internet] [Doctoral dissertation]. University of Newcastle; 2016. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/1959.13/1312200.

Council of Science Editors:

Robinson PWA. Dynamics of open and closed belt conveyor systems incorporating multiple drives. [Doctoral Dissertation]. University of Newcastle; 2016. Available from: http://hdl.handle.net/1959.13/1312200

University of Newcastle

8. O'Shea, Jayne Isobel. Mechanical and dielectric relaxation studies of conveyor belt compounds to determine indentation rolling resistance properties.

Degree: PhD, 2015, University of Newcastle

URL: http://hdl.handle.net/1959.13/1310151

►

Research Doctorate - Doctor of Philosophy (PhD)

The power consumption of an overland conveying system can by predicted using a range of analytical and experimental… (more)

▼

Research Doctorate - Doctor of Philosophy (PhD)

The power consumption of an overland conveying system can by predicted using a range of analytical and experimental methods. The main component of energy loss in an overland conveying system is due to the deformation of the bottom cover of the belt as it moves over each idler set. This loss is commonly labelled indentation rolling resistance. There are a number of existing analytical models which approximate the indentation rolling resistance of a belt conveying system. The accuracy of analytical models depends on the method of testing of a conveyor belts’ viscoelastic material properties. Due to the limitations and inconsistency of obtaining material properties using mechanical methods, it is becoming more common for viscoelastic behaviour to be represented by non-mechanical models, such as dielectric models. Electrical methods can lead to the same mathematical predictions as mechanical models, however, electric circuit experimental work is highly accurate and can be performed over a much greater frequency range than dynamic mechanical testing. This thesis examines mechanical methods of measuring the viscoelastic material properties of the bottom cover of a conveyor belt. The mechanical properties measured are used to evaluate the accuracy of a variety of mechanical analytical models. This thesis also examines various electrical methods of measuring the dielectric relaxation properties of the bottom cover of a conveyor belt. The mechanically measured viscoelastic properties are compared to the dielectric relaxation properties using well-establish mechanical and dielectric analogies. Dielectric indentation rolling resistance prediction models are developed by the author that can be used as analogies to the existing mechanical indentation rolling resistance models. The predictions from the mechanical and author developed dielectric rolling resistance models are compared to actual indentation rolling resistance data obtained from tests performed at the University of Newcastle on a purpose built test facility for the same rubber compounds for verification.

Advisors/Committee Members: University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering.

Subjects/Keywords: indentation rolling resistance; conveyor belt; viscoelastic properties; dielectric relaxation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

O'Shea, J. I. (2015). Mechanical and dielectric relaxation studies of conveyor belt compounds to determine indentation rolling resistance properties. (Doctoral Dissertation). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/1310151

Chicago Manual of Style (16^th Edition):

O'Shea, Jayne Isobel. “Mechanical and dielectric relaxation studies of conveyor belt compounds to determine indentation rolling resistance properties.” 2015. Doctoral Dissertation, University of Newcastle. Accessed January 16, 2021. http://hdl.handle.net/1959.13/1310151.

MLA Handbook (7^th Edition):

O'Shea, Jayne Isobel. “Mechanical and dielectric relaxation studies of conveyor belt compounds to determine indentation rolling resistance properties.” 2015. Web. 16 Jan 2021.

Vancouver:

O'Shea JI. Mechanical and dielectric relaxation studies of conveyor belt compounds to determine indentation rolling resistance properties. [Internet] [Doctoral dissertation]. University of Newcastle; 2015. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/1959.13/1310151.

Council of Science Editors:

O'Shea JI. Mechanical and dielectric relaxation studies of conveyor belt compounds to determine indentation rolling resistance properties. [Doctoral Dissertation]. University of Newcastle; 2015. Available from: http://hdl.handle.net/1959.13/1310151

Universidade do Rio Grande do Sul

9. Vieira, Eleno Rodrigues. Reticulação peroxídica de compostos elastoméricos utilizados na indústria de pneus.

Degree: 2013, Universidade do Rio Grande do Sul

URL: http://hdl.handle.net/10183/108470

►

Compostos elastoméricos a base de borracha natural (NR) e copolímero de butadieno-estireno (SBR) utilizados na banda de rodagem de pneus são tradicionalmente reticulados com enxofre.… (more)

▼

Compostos elastoméricos a base de borracha natural (NR) e copolímero de butadieno-estireno (SBR) utilizados na banda de rodagem de pneus são tradicionalmente reticulados com enxofre. O uso de peróxidos e co-agentes na reticulação desses compostos ainda é um desafio a se superar com relação às propriedades viscoelásticas requeridas, de extrema importância para um bom desempenho e vida útil dos pneus. Neste trabalho foi avaliado o uso de peróxidos sem e com co-agentes na reticulação de compostos NR/SBR com o intuito de avaliar a eficiência destes na manutenção das propriedades relevantes em relação a um composto tradicionalmente usado na confecção de banda de rodagem de pneus. Onze formulações com diferentes sistemas de reticulação foram preparadas, sendo uma de referência. Foram avaliadas propriedades físicas como dureza, densidade, tração, resistência ao rasgamento, resiliência, abrasão e DPC, e o comportamento dos compostos de NR/SBR com relação ao inchamento em tolueno. As propriedades dinâmicomecânicas dos compostos NR/SBR foram analisadas por DMA e RPA. Os compostos NR/SBR contendo somente peróxidos não apresentaram propriedades comparáveis ao composto de referência vulcanizado com enxofre. Os compostos contendo os sistemas peróxidos/co-agentes, BIS F 40 A-Retilink T40 (composto 10) e BIS F 40 A-Retilink TA 70 (composto 11) apresentaram os melhores resultados. O composto 10 e o composto de referência (composto 1) apresentaram valores similares de tan d a 60°C e tan d a 0°C (DMA), os quais estão correlacionados às propriedades de resistência ao rolamento e tração no molhado, respectivamente. Os resultados mostraram a possibilidade de uso de certos sistemas peróxido/co-agente em compostos de NR/SBR, em substituição ao sistema com enxofre, sem perda de propriedades, tendo como vantagem a redução de componentes na formulação, redução de tempo de processamento, e consequentemente custo da produção de bandas de rodagem.

Rubber compounds based on natural rubber (NR) and styrene-butadiene rubber (SBR) used on tire tread are traditionally crosslinked with sulfur. The use of peroxides and co-agents in crosslinking of these compounds is still a challenge to be achieved, considering the required viscoelastic properties which are extremely important for a good tire performance and lifetime. In this work it was evaluated the use of peroxide systems with and without co-agents as crosslinking agents for NR/SBR compounds, with the aim of evaluating the efficiency of maintaining the key properties related to the traditionally used in the manufactory of tire tread. Eleven formulations with different systems were prepared, a one as a reference. Physical properties such as hardness, density, tensile strength, tear, resilience, abrasion and compression set and the behavior of NR/SBR compounds in relation of swelling Toluene were evaluated. The dynamic mechanical properties of the NR/SBR cured compounds were analysed by DMA and RPA. The NR/SBR compounds cured with only peroxide had poorer properties when compared to the reference…

Advisors/Committee Members: Forte, Maria Madalena de Camargo.

Subjects/Keywords: Crosslinking; Pneus; Peroxides; Vulcanização; Elastômeros; Co-agents; Rolling resistance; Wet traction

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APA (6^th Edition):

Vieira, E. R. (2013). Reticulação peroxídica de compostos elastoméricos utilizados na indústria de pneus. (Thesis). Universidade do Rio Grande do Sul. Retrieved from http://hdl.handle.net/10183/108470

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Vieira, Eleno Rodrigues. “Reticulação peroxídica de compostos elastoméricos utilizados na indústria de pneus.” 2013. Thesis, Universidade do Rio Grande do Sul. Accessed January 16, 2021. http://hdl.handle.net/10183/108470.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Vieira, Eleno Rodrigues. “Reticulação peroxídica de compostos elastoméricos utilizados na indústria de pneus.” 2013. Web. 16 Jan 2021.

Vancouver:

Vieira ER. Reticulação peroxídica de compostos elastoméricos utilizados na indústria de pneus. [Internet] [Thesis]. Universidade do Rio Grande do Sul; 2013. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/10183/108470.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Vieira ER. Reticulação peroxídica de compostos elastoméricos utilizados na indústria de pneus. [Thesis]. Universidade do Rio Grande do Sul; 2013. Available from: http://hdl.handle.net/10183/108470

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

KTH

10. Conte, Francesco. Expanding the brush tire model for energy studies.

Degree: Vehicle Dynamics, 2014, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164284

► Considering the more and more important issues concerning the climate changes and the global warming, the automotive industry is paying more and more attention… (more)

Subjects/Keywords: Multi-Line Brush Tire model; Masing model; rolling resistance

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APA (6^th Edition):

Conte, F. (2014). Expanding the brush tire model for energy studies. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164284

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Conte, Francesco. “Expanding the brush tire model for energy studies.” 2014. Thesis, KTH. Accessed January 16, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164284.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Conte, Francesco. “Expanding the brush tire model for energy studies.” 2014. Web. 16 Jan 2021.

Vancouver:

Conte F. Expanding the brush tire model for energy studies. [Internet] [Thesis]. KTH; 2014. [cited 2021 Jan 16]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164284.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Conte F. Expanding the brush tire model for energy studies. [Thesis]. KTH; 2014. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164284

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Clemson University

11. Thyagaraja, Niranjan. Requirements Determination Of A Novel Non-Pneumatic Wheel Shear Beam For Low Rolling Resistance.

Degree: MS, Mechanical Engineering, 2011, Clemson University

URL: https://tigerprints.clemson.edu/all_theses/1048

► The hysteretic loss associated with cyclic shear in the elastomeric shear layer is one of the prevailing concerns for the development of a low rolling… (more)

▼ The hysteretic loss associated with cyclic shear in the elastomeric shear layer is one of the prevailing concerns for the development of a low rolling loss non-pneumatic wheel. We propose to eliminate the hysteretic losses associated with the elastomeric shear layer and thus, reduce the corresponding rolling resistance by using linear elastic materials which are inherently non-hysteretic. Since the shear modulus of a viscoelastic shear layer is less than that of an elastic material by several orders of magnitude, the challenge to achieve a low effective shear modulus shear layer with linear elastic materials directs towards the development of a new class of materials known as metamaterials. These are engineered materials with exceptional qualities usually not encountered in nature and there is a need to determine their properties for any given application. This thesis presents work on the material and geometric requirements determination of a low rolling loss non-pneumatic wheel shear beam (shear beam is an integrated structure composed of a shear layer and inner and outer inextensible membranes) through a systematic optimization approach. Six different configurations of the non-pneumatic wheel are explored. Each design configuration is a unique combination of the type of linear elastic material model used for the shear layer and the material used for the outer and inner inextensible membranes. In each case, the choice of an appropriate geometric and material property of the shear beam is treated as a single-objective constrained optimization problem. The goal is to target a sufficiently large strain to guarantee enough deformation in the shear layer while constraints on the average and maximum contact pressure are satisfied. The study identifies the driving design variables from a statistical analysis and proposes a relation between them to meet the functional requirement of a low rolling-loss non-pneumatic wheel. The resulting constitutive metamaterial properties of the shear layer can be used as prescribed constitutive properties to tailor the periodic structure of a material by means of the topology optimization. Advisors/Committee Members: Fadel, Dr. Georges M, Thompson , Dr. Lonny L, Li , Dr. Gang.

Subjects/Keywords: Metamaterial; Non-pneumatic wheel; Optimization; Rolling resistance; Mechanical Engineering

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APA (6^th Edition):

Thyagaraja, N. (2011). Requirements Determination Of A Novel Non-Pneumatic Wheel Shear Beam For Low Rolling Resistance. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/1048

Chicago Manual of Style (16^th Edition):

Thyagaraja, Niranjan. “Requirements Determination Of A Novel Non-Pneumatic Wheel Shear Beam For Low Rolling Resistance.” 2011. Masters Thesis, Clemson University. Accessed January 16, 2021. https://tigerprints.clemson.edu/all_theses/1048.

MLA Handbook (7^th Edition):

Thyagaraja, Niranjan. “Requirements Determination Of A Novel Non-Pneumatic Wheel Shear Beam For Low Rolling Resistance.” 2011. Web. 16 Jan 2021.

Vancouver:

Thyagaraja N. Requirements Determination Of A Novel Non-Pneumatic Wheel Shear Beam For Low Rolling Resistance. [Internet] [Masters thesis]. Clemson University; 2011. [cited 2021 Jan 16]. Available from: https://tigerprints.clemson.edu/all_theses/1048.

Council of Science Editors:

Thyagaraja N. Requirements Determination Of A Novel Non-Pneumatic Wheel Shear Beam For Low Rolling Resistance. [Masters Thesis]. Clemson University; 2011. Available from: https://tigerprints.clemson.edu/all_theses/1048

Clemson University

12. Veeramurthy, Mallikarjun. Modeling, finite element analysis, and optimization of Non-Pneumatic Tire (NPT) for the minimization of rolling resistance.

Degree: MS, Mechanical Engineering, 2011, Clemson University

URL: https://tigerprints.clemson.edu/all_theses/1154

► Recently, the development of non-pneumatic tires (NPT) such as the Michelin Tweel is receiving increased attention due to potential advantages over pneumatic tires such as… (more)

Subjects/Keywords: Non-pneumatic tire; NPT; Optimization; Rolling resistance; Tire; Tweel; Mechanical Engineering

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APA (6^th Edition):

Veeramurthy, M. (2011). Modeling, finite element analysis, and optimization of Non-Pneumatic Tire (NPT) for the minimization of rolling resistance. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/1154

Chicago Manual of Style (16^th Edition):

Veeramurthy, Mallikarjun. “Modeling, finite element analysis, and optimization of Non-Pneumatic Tire (NPT) for the minimization of rolling resistance.” 2011. Masters Thesis, Clemson University. Accessed January 16, 2021. https://tigerprints.clemson.edu/all_theses/1154.

MLA Handbook (7^th Edition):

Veeramurthy, Mallikarjun. “Modeling, finite element analysis, and optimization of Non-Pneumatic Tire (NPT) for the minimization of rolling resistance.” 2011. Web. 16 Jan 2021.

Vancouver:

Veeramurthy M. Modeling, finite element analysis, and optimization of Non-Pneumatic Tire (NPT) for the minimization of rolling resistance. [Internet] [Masters thesis]. Clemson University; 2011. [cited 2021 Jan 16]. Available from: https://tigerprints.clemson.edu/all_theses/1154.

Council of Science Editors:

Veeramurthy M. Modeling, finite element analysis, and optimization of Non-Pneumatic Tire (NPT) for the minimization of rolling resistance. [Masters Thesis]. Clemson University; 2011. Available from: https://tigerprints.clemson.edu/all_theses/1154

KTH

13. Bruce, Adam Duvheim. Beräkning av återmatad bromsenergi på Malmbanan.

Degree: Computer and Electronic Engineering, 2015, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-169197

►

Energi är en resurs som måste användas effektiv för att undvika onödig negativ miljöpåverkan och utgifter. Återmatning från nedåtgående malmtåg till uppåtgående malmtåg leder… (more)

Subjects/Keywords: Regenerative breaking; recycled energy; converter; overhead; rolling resistance; pitch resistance; curve resistance; Återmatande broms; återmatning; omformare; kontaktledning; rullmotstånd; stigningsmotstånd; kurvmotstånd

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APA (6^th Edition):

Bruce, A. D. (2015). Beräkning av återmatad bromsenergi på Malmbanan. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-169197

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bruce, Adam Duvheim. “Beräkning av återmatad bromsenergi på Malmbanan.” 2015. Thesis, KTH. Accessed January 16, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-169197.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bruce, Adam Duvheim. “Beräkning av återmatad bromsenergi på Malmbanan.” 2015. Web. 16 Jan 2021.

Vancouver:

Bruce AD. Beräkning av återmatad bromsenergi på Malmbanan. [Internet] [Thesis]. KTH; 2015. [cited 2021 Jan 16]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-169197.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bruce AD. Beräkning av återmatad bromsenergi på Malmbanan. [Thesis]. KTH; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-169197

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

14. Rahmani, Niousha. SCALE TESTING HARD ROCK WASTE DUMP STABILITY UNDER HAULER MOTION.

Degree: MS, Department of Civil and Environmental Engineering, 2014, University of Alberta

URL: https://era.library.ualberta.ca/files/vq27zp07c

► Mining methods have changed and grown to fulfill extractive demands. Heavy machinery is used to extract overburden in open pit and open cast mines and… (more)

Subjects/Keywords: Waste dump stability; Slope stability; Rolling resistance; Physical modeling; Mining equipment; Numerical modeling

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APA (6^th Edition):

Rahmani, N. (2014). SCALE TESTING HARD ROCK WASTE DUMP STABILITY UNDER HAULER MOTION. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/vq27zp07c

Chicago Manual of Style (16^th Edition):

Rahmani, Niousha. “SCALE TESTING HARD ROCK WASTE DUMP STABILITY UNDER HAULER MOTION.” 2014. Masters Thesis, University of Alberta. Accessed January 16, 2021. https://era.library.ualberta.ca/files/vq27zp07c.

MLA Handbook (7^th Edition):

Rahmani, Niousha. “SCALE TESTING HARD ROCK WASTE DUMP STABILITY UNDER HAULER MOTION.” 2014. Web. 16 Jan 2021.

Vancouver:

Rahmani N. SCALE TESTING HARD ROCK WASTE DUMP STABILITY UNDER HAULER MOTION. [Internet] [Masters thesis]. University of Alberta; 2014. [cited 2021 Jan 16]. Available from: https://era.library.ualberta.ca/files/vq27zp07c.

Council of Science Editors:

Rahmani N. SCALE TESTING HARD ROCK WASTE DUMP STABILITY UNDER HAULER MOTION. [Masters Thesis]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/vq27zp07c

NSYSU

15. Tsai, Yu-ting. Theoretical Analysis and Experimental Verification of Basic Billiard Techniques.

Degree: Master, Mechanical and Electro-Mechanical Engineering, 2017, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0821115-170321

► This thesis continues the study of the former Master thesis, âThe Simulation of Basic Billiard Techniques and the Analysis of Frictional Forceâ, to explore how… (more)

Subjects/Keywords: follow shot; draw shot; stop shot; billiard mechanism; stop shot experiment; rolling resistance; billiard

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APA (6^th Edition):

Tsai, Y. (2017). Theoretical Analysis and Experimental Verification of Basic Billiard Techniques. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0821115-170321

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tsai, Yu-ting. “Theoretical Analysis and Experimental Verification of Basic Billiard Techniques.” 2017. Thesis, NSYSU. Accessed January 16, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0821115-170321.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tsai, Yu-ting. “Theoretical Analysis and Experimental Verification of Basic Billiard Techniques.” 2017. Web. 16 Jan 2021.

Vancouver:

Tsai Y. Theoretical Analysis and Experimental Verification of Basic Billiard Techniques. [Internet] [Thesis]. NSYSU; 2017. [cited 2021 Jan 16]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0821115-170321.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tsai Y. Theoretical Analysis and Experimental Verification of Basic Billiard Techniques. [Thesis]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0821115-170321

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

16. Kramer, H.W. (author). Rolling Resistance in Rubber Coated Rollers.

Degree: 2009, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:fd597dac-0776-42b5-8da7-b96d492221ee

►

One of the main methods of oil and gas transport at sea is performed by pipelines from the well or a platform offhore to another… (more)

▼

One of the main methods of oil and gas transport at sea is performed by pipelines from the well or a platform offhore to another offshore structure or to land. Allseas is a company capable of installing these pipelines under various challenging operating conditions. In today's market, competition and oil and gas availability make it necessary for Allseas to operate at the top of capability. For each project, calculations are performed beforehand to ensure a vessel will be able to deal with the pipeline installation under the specified conditions. When laying pipe in deep water, the longitudinal force required to hold the pipe can go up to 1000 mT. It is found that the calculations performed to predict this force do not always correspond with reality. The process of laying pipe involves transporting pipe over rubber coated rollers to the seabed under high tensions. The contact between the pipe and the rubber coated rollers cause a rolling resistance, which is not yet included in calculations, possibly explaining (part of) the discrepancy between calculations and reality. The goal of this thesis was to determine the amount of rolling resistance caused by the contact between the rollers and the pipe when transporting the pipe to the seabed. A literature study was performed leading to an analytical model based on material properties. Furthermore, a test setup was built where rolling resistance was measured. The results of the analysis and tests have been analyzed and related to actual operating conditions. It showed that the rolling resistance is much less than currently used in practice. From these results recommendations were provided on how to further develop the acquired analytical and material models which are used for calculating rolling resistance. The research was based on Allseas' vessel 'Solitaire', the world's largest pipe lay vessel but the results can be applied to all vessels having rubber coated rollers.

Precision and Microsystems Engineering

Mechanical, Maritime and Materials Engineering

Advisors/Committee Members: Van Beek, A. (mentor).

Subjects/Keywords: rolling resistance; rubber coated rollers

…21 4-4 Rolling resistance caused by the rollercoating… …rolling resistance in a bearing [-] Coefficient of rolling resistance [-]… …Coefficient of rolling resistance in the PU [-] Coefficient of friction bearing [… …Axial force on the tensioner [kN] Pulling force; Rolling resistance [kN]… …x5B;m/s] Force implied by rolling resistance [kN] M.Sc. thesis Nomenclature…

10 more images…

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APA (6^th Edition):

Kramer, H. W. (. (2009). Rolling Resistance in Rubber Coated Rollers. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:fd597dac-0776-42b5-8da7-b96d492221ee

Chicago Manual of Style (16^th Edition):

Kramer, H W (author). “Rolling Resistance in Rubber Coated Rollers.” 2009. Masters Thesis, Delft University of Technology. Accessed January 16, 2021. http://resolver.tudelft.nl/uuid:fd597dac-0776-42b5-8da7-b96d492221ee.

MLA Handbook (7^th Edition):

Kramer, H W (author). “Rolling Resistance in Rubber Coated Rollers.” 2009. Web. 16 Jan 2021.

Vancouver:

Kramer HW(. Rolling Resistance in Rubber Coated Rollers. [Internet] [Masters thesis]. Delft University of Technology; 2009. [cited 2021 Jan 16]. Available from: http://resolver.tudelft.nl/uuid:fd597dac-0776-42b5-8da7-b96d492221ee.

Council of Science Editors:

Kramer HW(. Rolling Resistance in Rubber Coated Rollers. [Masters Thesis]. Delft University of Technology; 2009. Available from: http://resolver.tudelft.nl/uuid:fd597dac-0776-42b5-8da7-b96d492221ee

KTH

17. Olofson, Helena. Rolling resistance during cornering - Impact of lateral forces for heavy-duty vehicles.

Degree: Optimization and Systems Theory, 2015, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177113

►

We consider first the single-track bicycle model and state relations between the tires’ lateral forces and the turning radius. From the tire model, a… (more)

Subjects/Keywords: Bicycle model; lateral forces; rolling resistance; velocity optimization; Cykelmodell; sidokrafter; rullmotstånd; hastighetsoptimering; bränsleförbrukning

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APA (6^th Edition):

Olofson, H. (2015). Rolling resistance during cornering - Impact of lateral forces for heavy-duty vehicles. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177113

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Olofson, Helena. “Rolling resistance during cornering - Impact of lateral forces for heavy-duty vehicles.” 2015. Thesis, KTH. Accessed January 16, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177113.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Olofson, Helena. “Rolling resistance during cornering - Impact of lateral forces for heavy-duty vehicles.” 2015. Web. 16 Jan 2021.

Vancouver:

Olofson H. Rolling resistance during cornering - Impact of lateral forces for heavy-duty vehicles. [Internet] [Thesis]. KTH; 2015. [cited 2021 Jan 16]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177113.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Olofson H. Rolling resistance during cornering - Impact of lateral forces for heavy-duty vehicles. [Thesis]. KTH; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177113

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

KTH

18. Hilmarsson, Brynjar. Shock Absorbing Flooring For Elderly Homes : Study of Shock Absorption of Head Impacts and Rolling Resistance.

Degree: Biotechnology and Health (CBH), 2018, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244871

► In Sweden fall-related injuries among the elderly lead to over a thousand deaths and close to 300.0000 hospital visitations annually. Fall related injuries can… (more)

▼ In Sweden fall-related injuries among the elderly lead to over a thousand deaths and close to 300.0000 hospital visitations annually. Fall related injuries can in many cases lead to serious head injuries along with other fractures. The elderly are more prone to fall and sustain an injury because of conditions such as osteoporosis and weak muscles. Researchers at KTH from the Division of Neuronic Engineering have developed a special floor that absorbs energy from an impact which can reduce the severity of injury when a person falls. There has been research done on the floor focusing on hip fractures which have shown good results. The floor has been set up in an elderly home in Stureby, Stockholm, Sweden, however further testing is needed to fully develop the floor to its maximum capacity. One goal of this master thesis was to investigate certain obstacles with the floor which arose during testing in Stureby. One of the challenges was that the floor had greater rolling resistance since it is softer than a normal concrete floor. The experiment was done by using a dynamo meter to measure the force needed to move a test wagon with a fixed weight and different sizes of wheels. Another goal of this thesis was to investigate head impacts on the KTH floor. That was done in a helmet testing lab at Mips helmet company. There a dummy head was dropped from various heights and the acceleration was measured. The 1st principle strain of the brain was calculated from the collected data. Other companies have created similar floors so it was a part of the thesis to compare the KTH floor with its competitors. The results from the rolling resistance showed that by increasing the width and diameter of the wheels there was less force needed to move the test wagon. Further tests are needed to investigate the problem regarding the indentation issues seen on the floor set up in Stureby. Some research has already begun with different types of linoleum and glue. In the head impact studies, the KTH floor showed the best results of all tested floors when dropped from 60 cm. However, when dropped from 100 cm a competitor floor showed better results in the resultant translational acceleration.

Subjects/Keywords: Shockabsorbing Flooring; Rolling Resistance; Fall Injuries; Head Impact Studies; Medical Engineering; Medicinteknik

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APA (6^th Edition):

Hilmarsson, B. (2018). Shock Absorbing Flooring For Elderly Homes : Study of Shock Absorption of Head Impacts and Rolling Resistance. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244871

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hilmarsson, Brynjar. “Shock Absorbing Flooring For Elderly Homes : Study of Shock Absorption of Head Impacts and Rolling Resistance.” 2018. Thesis, KTH. Accessed January 16, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244871.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hilmarsson, Brynjar. “Shock Absorbing Flooring For Elderly Homes : Study of Shock Absorption of Head Impacts and Rolling Resistance.” 2018. Web. 16 Jan 2021.

Vancouver:

Hilmarsson B. Shock Absorbing Flooring For Elderly Homes : Study of Shock Absorption of Head Impacts and Rolling Resistance. [Internet] [Thesis]. KTH; 2018. [cited 2021 Jan 16]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244871.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hilmarsson B. Shock Absorbing Flooring For Elderly Homes : Study of Shock Absorption of Head Impacts and Rolling Resistance. [Thesis]. KTH; 2018. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244871

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Illinois – Urbana-Champaign

19. Hernandez, Jaime Alberto. Development of deformable tire-pavement interaction: contact stresses and rolling resistance prediction under various driving conditions.

Degree: PhD, Civil Engineering, 2015, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/89127

► Even though continuous improvements have been seen in the analysis of flexible pavements, one of the most important factors is still oversimplified: the tire. This… (more)

▼ Even though continuous improvements have been seen in the analysis of flexible pavements, one of the most important factors is still oversimplified: the tire. This can result in costly decisions, such as poor structural road design, incorrect damage prediction, and inappropriate adoption of maintenance/rehabilitation techniques. Moreover, accurate analysis of the tire-pavement system improves predictions of rolling resistance, fuel consumption, and greenhouse gas emissions. The main contribution of this research lies in the evaluation of tire and pavement as a semi-coupled system, assuming both are deformable bodies, while focusing on contact stresses, rolling resistance, and pavement responses. In addition to load and tire inflation pressure, temperature, speed, and rolling conditions were considered. A series of necessary advancements in the tire model, such as appropriate material characterization (hyperelastic and visco-hyperelastic), accurate geometry, and model validation using experimental measurements, were implemented. The experimental program provided information for validation (contact area, tire deflection, and contact stresses/loads). In addition, based on the experimental measurements, a procedure including analytical expression was proposed to predict the variation of the vertical and transverse contact loads along the contact length. Four tire finite element (FE) models having accurate geometry and material characterization were developed to predict contact stresses and rolling resistance force. First, a hyperelastic tire was used on a rigid surface to predict contact stresses under various rolling and loading conditions. Second, the influence of tire speed and temperature was investigated using a visco-hyperelastic tire rolling on rigid surface. Third, hyperelastic tire on deformable elastic body was used to assess the sensitivity of the contact stresses to the body's stiffness. Fourth, the relevance of surface temperature and tire speed was determined using a hyperelastic tire on a deformable viscoelastic body. Finally, the deformable tire and pavement model were integrated to evaluate critical pavement responses, rolling resistance force, and structure-induced rolling resistance. Vertical and transverse contact loads for all conditions and longitudinal contact stresses at full braking were successfully fitted to analytical expressions, thus easing their potential application in pavement analysis. Based on the hyperelastic tire FE results, the vertical contact stresses were unaffected by traveling speed and rolling condition, and the rolling condition mainly modified the longitudinal contact stresses. After altering the rubber component’s material model to visco-hyperelastic, the contact area increased 6.8% due to temperature and decreased 3.8% due to speed. In addition, longitudinal contact stresses were the most affected by temperature and speed: increments in peak value caused by speed were as high as 17%, and the reduction caused by temperature reached 33.1%. On the other hand,… Advisors/Committee Members: Al-Qadi, Imad L (advisor), Al-Qadi, Imad L (Committee Chair), Little, Dallas (committee member), Masud, Arif (committee member), Ozer, Hasan (committee member), Radulescu, Robert (committee member), Thompson, Marshall (committee member).

Subjects/Keywords: Tire-pavement interaction; pavement responses; rolling resistance; contact stresses; finite element modeling

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APA (6^th Edition):

Hernandez, J. A. (2015). Development of deformable tire-pavement interaction: contact stresses and rolling resistance prediction under various driving conditions. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/89127

Chicago Manual of Style (16^th Edition):

Hernandez, Jaime Alberto. “Development of deformable tire-pavement interaction: contact stresses and rolling resistance prediction under various driving conditions.” 2015. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed January 16, 2021. http://hdl.handle.net/2142/89127.

MLA Handbook (7^th Edition):

Hernandez, Jaime Alberto. “Development of deformable tire-pavement interaction: contact stresses and rolling resistance prediction under various driving conditions.” 2015. Web. 16 Jan 2021.

Vancouver:

Hernandez JA. Development of deformable tire-pavement interaction: contact stresses and rolling resistance prediction under various driving conditions. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2015. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/2142/89127.

Council of Science Editors:

Hernandez JA. Development of deformable tire-pavement interaction: contact stresses and rolling resistance prediction under various driving conditions. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/89127

Brno University of Technology

20. Matela, Milan. Konstrukce experimentální stanice pro měření valivého odporu cyklistických pneumatik: Design of experimental apparatus for measuring of rolling resistance of cycle tyres.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/20820

► This bachelor´s thesis deals with construction solution for measurement station of rolling resistance of cycle tyres. It shortly explains what is the term rolling resistance… (more)

Subjects/Keywords: Valivý odpor; valivá ztráta; kroutící moment; parazitní moment; bubnová zkušebna; mené kolo.; Rolling resistance; rolling loss; torque; parasitic torque; drum testing station; measured wheel.

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APA (6^th Edition):

Matela, M. (2019). Konstrukce experimentální stanice pro měření valivého odporu cyklistických pneumatik: Design of experimental apparatus for measuring of rolling resistance of cycle tyres. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/20820

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Matela, Milan. “Konstrukce experimentální stanice pro měření valivého odporu cyklistických pneumatik: Design of experimental apparatus for measuring of rolling resistance of cycle tyres.” 2019. Thesis, Brno University of Technology. Accessed January 16, 2021. http://hdl.handle.net/11012/20820.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Matela, Milan. “Konstrukce experimentální stanice pro měření valivého odporu cyklistických pneumatik: Design of experimental apparatus for measuring of rolling resistance of cycle tyres.” 2019. Web. 16 Jan 2021.

Vancouver:

Matela M. Konstrukce experimentální stanice pro měření valivého odporu cyklistických pneumatik: Design of experimental apparatus for measuring of rolling resistance of cycle tyres. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/11012/20820.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Matela M. Konstrukce experimentální stanice pro měření valivého odporu cyklistických pneumatik: Design of experimental apparatus for measuring of rolling resistance of cycle tyres. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/20820

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

21. Dotto, Magreth S. Impact of hauler scale in mine planning.

Degree: MS, Department of Civil and Environmental Engineering, 2014, University of Alberta

URL: https://era.library.ualberta.ca/files/xd07gt160

► Equipment selection is one of the most important decisions made in mine planning. Size of equipment affects decisions from size of pit to total cost… (more)

Subjects/Keywords: Mine planning; Mine haul road construction; Rolling resistance; Mine trucks diesel emissons; Mine trucks fuel consumption

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APA (6^th Edition):

Dotto, M. S. (2014). Impact of hauler scale in mine planning. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/xd07gt160

Chicago Manual of Style (16^th Edition):

Dotto, Magreth S. “Impact of hauler scale in mine planning.” 2014. Masters Thesis, University of Alberta. Accessed January 16, 2021. https://era.library.ualberta.ca/files/xd07gt160.

MLA Handbook (7^th Edition):

Dotto, Magreth S. “Impact of hauler scale in mine planning.” 2014. Web. 16 Jan 2021.

Vancouver:

Dotto MS. Impact of hauler scale in mine planning. [Internet] [Masters thesis]. University of Alberta; 2014. [cited 2021 Jan 16]. Available from: https://era.library.ualberta.ca/files/xd07gt160.

Council of Science Editors:

Dotto MS. Impact of hauler scale in mine planning. [Masters Thesis]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/xd07gt160

Lithuanian University of Agriculture

22. Trinkūnas, Aistis. Padangų riedėjimo pasipriešinimo lauko sąlygomis tyrimas.

Degree: Master, Mechanical Engineering, 2013, Lithuanian University of Agriculture

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_141605-60535 ;

►

Magistrantūros studijų baigiamajame darbe pateikiami padangų riedėjimo pasipriešinimo, lauko sąlygomis, tyrimo duomenys, esant skirtingiems atraminio paviršiaus tipams (pieva, ražiena, sausas žvyrkelis), įvairioms padangų vertikalioms apkrovoms… (more)

▼

Magistrantūros studijų baigiamajame darbe pateikiami padangų riedėjimo pasipriešinimo, lauko sąlygomis, tyrimo duomenys, esant skirtingiems atraminio paviršiaus tipams (pieva, ražiena, sausas žvyrkelis), įvairioms padangų vertikalioms apkrovoms (nuo 1,4 kN iki 5,9 kN) bei skirtingiems oro slėgiams padangoje (nuo 0,5 bar iki 2,0 bar). Darbo objektas – padangos riedėjimo pasipriešinimo koeficientas, jo reikšmės kitimas, esant skirtingiems padangos, apkrovos, ir atraminio paviršiaus parametrams. Tyrimas atliktas naudojant BELCHINA 7.50L – 16 ФБел – 253 padangą. Darbo metodai: padangos tyrimams atlikti buvo suprojektuotas ir pagamintas mobilus stendas, kuris buvo tvirtinamas prie savaeigės važiuoklės T–16M. Darbo rezultatai. Oro slėgis padangoje ir vertikalios apkrovos dydis turėjo įtakos riedėjimo pasipriešinimo koeficiento reikšmių kaitai, esant skirtingiems atraminiams paviršiams (pievoje, ražienoje, sausame žvyrkelyje). Mažinant padangos slėgį riedėjimo pasipriešinimo jėga yra tiesiogiai proporcinga vertikalios apkrovos jėgai ir atvirkščiai proporcinga slėgiui padangoje. Pievoje mažiausia riedėjimo pasipriešinimo jėgos Fp reikšmė gauta esant 1,0 bar slėgiui ir padangą apkrovus 1,4 kN vertikalia apkrova (Fp = 14,375 kN). Ražienoje – esant 0,5 bar slėgiui padangoje, ir 1,4 kN vertikaliai apkrovai (Fp = 22,283 kN). Bandymą atliekant ant žvyrkelio – minimali riedėjimo pasipriešinimo jėgos Fp reikšmė buvo tada, kai padangą veikė 1,4 kN vertikali apkrova ir oro slėgis padangoje... [toliau žr. visą tekstą]

The Master’s thesis presents findings of the study of tire rolling resistance under field conditions with different types of support surfaces (grassland, stubble, dry gravel-road), different vertical loads of tires (from 1.4 kN to 5.9 kN) and different air pressures in a tire (from 0.5 bar to 2.0 bar). Object of the thesis – tire rolling resistance coefficient f, change of its values with different parameters of a tire, load and support surface. The study was carried out using the tire BELCHINA 7.50L – 16 ФБел – 253. Methods of the thesis: in order to carry out the tire study, mobile stand was designed and manufactured and attached to self-propelled chassis T – 16M. Results of the thesis. Air pressure in the tire and the value of vertical load influenced the change of rolling resistance coefficient with different support surfaces (grassland, stubble, dry gravel-road). At the tire pressure being decreased, the rolling resistance force was directly proportional to the force of vertical load and is inversely proportional to pressure in the tire. The lowest value of rolling resistance force Fp on grassland was obtained at the pressure of 1,0 bar and vertical load of 1,4 kN on the tire (Fp = 14,375 kN). On stubble – at the pressure of 0,5 bar in the tire and vertical load of 1,4 kN (Fp = 22,283 kN). When the test was performed on dry gravel-road, the minimal value of rolling resistance force Fp was when the tire was affected by vertical load of 1,4 kN and air pressure in the tire... [to full text]

Advisors/Committee Members: Janulevičius, Algirdas (Master’s thesis supervisor), Pauliukas, Arvydas (Master’s thesis reviewer), Sniauka, Povilas (Master’s thesis reviewer).

Subjects/Keywords: Padanga; Riedėjimo pasipriešinimas; Slėgis padangoje; Vertikali apkrova; Lauko tyrimai; Tire; Rolling resistance; Pressure in the tire; Vertical load; Field studies

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APA (6^th Edition):

Trinkūnas, Aistis. (2013). Padangų riedėjimo pasipriešinimo lauko sąlygomis tyrimas. (Masters Thesis). Lithuanian University of Agriculture. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_141605-60535 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

Trinkūnas, Aistis. “Padangų riedėjimo pasipriešinimo lauko sąlygomis tyrimas.” 2013. Masters Thesis, Lithuanian University of Agriculture. Accessed January 16, 2021. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_141605-60535 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

Trinkūnas, Aistis. “Padangų riedėjimo pasipriešinimo lauko sąlygomis tyrimas.” 2013. Web. 16 Jan 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Trinkūnas, Aistis. Padangų riedėjimo pasipriešinimo lauko sąlygomis tyrimas. [Internet] [Masters thesis]. Lithuanian University of Agriculture; 2013. [cited 2021 Jan 16]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_141605-60535 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

Trinkūnas, Aistis. Padangų riedėjimo pasipriešinimo lauko sąlygomis tyrimas. [Masters Thesis]. Lithuanian University of Agriculture; 2013. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_141605-60535 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

23. Dhillon, Ranvir Singh. Development of truck tire-terrain finite element analysis models.

Degree: 2013, University of Ontario Institute of Technology

URL: http://hdl.handle.net/10155/373

► Heavy vehicles require tires which can withstand extreme loads while maintaining control, delivering performance and minimizing fuel consumption, particularly on soft soils. Recent advances in… (more)

Subjects/Keywords: FEA; SPH; Tires; Soils; Rolling resistance

…deflection due to loading m E Young’s modulus of the soil MPa fr Rolling resistance… …of the tire only kg Mx Overturning moment kN m My Rolling resistance moment kN m Mz… …rolling resistance (Wong J. , 2008). An example of the construction of a radialply… …standards are used for the measurement of rolling resistance of tires. The SAE and ISO standards… …evaluation, and recommends one of three methods to measure the rolling resistance. The force method…

10 more images…

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APA (6^th Edition):

Dhillon, R. S. (2013). Development of truck tire-terrain finite element analysis models. (Thesis). University of Ontario Institute of Technology. Retrieved from http://hdl.handle.net/10155/373

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dhillon, Ranvir Singh. “Development of truck tire-terrain finite element analysis models.” 2013. Thesis, University of Ontario Institute of Technology. Accessed January 16, 2021. http://hdl.handle.net/10155/373.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dhillon, Ranvir Singh. “Development of truck tire-terrain finite element analysis models.” 2013. Web. 16 Jan 2021.

Vancouver:

Dhillon RS. Development of truck tire-terrain finite element analysis models. [Internet] [Thesis]. University of Ontario Institute of Technology; 2013. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/10155/373.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dhillon RS. Development of truck tire-terrain finite element analysis models. [Thesis]. University of Ontario Institute of Technology; 2013. Available from: http://hdl.handle.net/10155/373

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Illinois – Urbana-Champaign

24. Ziyadi, Mojtaba. Uncertainty quantification for pavement life-cycle stages.

Degree: PhD, Civil Engineering, 2017, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/99231

► Life-cycle assessment (LCA), a common sustainability metric, is usually adopted to quantify the environmental consequences of a product. It has been shown that rolling resistance… (more)

▼ Life-cycle assessment (LCA), a common sustainability metric, is usually adopted to quantify the environmental consequences of a product. It has been shown that rolling resistance (RR), a major component of pavement LCA use stage, has significant impact on transportation-related energy consumption. Pavement related RR mainly includes pavement structure, surface roughness (or smoothness) and texture. This research aims at addressing current challenges in pavement LCA use stage. A robust framework is proposed to evaluate RR via developing models for pavement roughness- and structural-induced RR. A roughness–speed impact (RSI) model was developed to quantify the energy and environmental impacts due to RR. The model uses vehicle-specific power as part of the pavement–vehicle interaction (PVI) analysis. According to the model, one unit change of IRI (1 m/km) results in 3% and 2% fuel consumption, respectively, at high and low speeds (105 and 56 km/h) for passenger cars. In addition to the RSI model, the study proposes a practical approach to assess the vehicle excess fuel consumption (EFC) due to pavement deflection. The developed relationship relies on the fundamental energy-deformation principles obtained by conducting nonlinear regression analysis on 3-D finite element (FE) simulations. The proposed model is formulated using a quadratic form of maximum pavement deflection. Factors affect EFC includes, truck loading and speed and pavement temperature. It was found that the estimated EFC for a heavy truck could be as low as 0.03% for a half loaded truck at a temperature of 0 °C a speed of 115 km/h and as high as 6.5% for a fully loaded truck at a temperature of 40 °C and a speed of 8 km/h. This could be increased for low volume road pavement structure. At a speed of 100 km/h, a typical HS20-44 truck could consume an additional 0.5% fuel due to structural rolling resistance (SRR). Uncertainty of pavement roughness has significant impact on the energy and emission output of the pavement-vehicle system depending on the precision level of the model used, input variabilities, and prior knowledge of the model parameters. When quantified uncertainties, successfully utilized in this study, are implemented, LCA parameters prediction would be improved. The introduced RR models may be used as part of the decision-making for short-term energy and emission reduction policies. Advisors/Committee Members: Al-Qadi, Imad (advisor), Al-Qadi, Imad (Committee Chair), Harvey, John (committee member), Birgisson, Bjorn (committee member), Ouyang, Yanfeng (committee member), Meidani, Hadi (committee member), Ozer, Hasan (committee member).

Subjects/Keywords: Uncertainty quantification; Sustainability; Life-cycle assessment; Pavement; Rolling resistance; Machine learning; Roughness; Deflection-induced energy; Excess energy; Emissions

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ziyadi, M. (2017). Uncertainty quantification for pavement life-cycle stages. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/99231

Chicago Manual of Style (16^th Edition):

Ziyadi, Mojtaba. “Uncertainty quantification for pavement life-cycle stages.” 2017. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed January 16, 2021. http://hdl.handle.net/2142/99231.

MLA Handbook (7^th Edition):

Ziyadi, Mojtaba. “Uncertainty quantification for pavement life-cycle stages.” 2017. Web. 16 Jan 2021.

Vancouver:

Ziyadi M. Uncertainty quantification for pavement life-cycle stages. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2017. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/2142/99231.

Council of Science Editors:

Ziyadi M. Uncertainty quantification for pavement life-cycle stages. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2017. Available from: http://hdl.handle.net/2142/99231

Brno University of Technology

25. Koksa, David. Motorová jednotka stavebního nakládacího stroje: The engine unit of a loader.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/40359

► The work is focused on loading construction machinery and their engine units. The theoretical background research introduces the domain of wheeled loaders. Subsequently, three specific… (more)

Subjects/Keywords: kolový nakladač; motorová jednotka; valivý odpor; výkonový požadavek; hydraulický pohon; wheel loader; engine unit; rolling resistance; power requirement; hydraulic drive

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APA (6^th Edition):

Koksa, D. (2019). Motorová jednotka stavebního nakládacího stroje: The engine unit of a loader. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/40359

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Koksa, David. “Motorová jednotka stavebního nakládacího stroje: The engine unit of a loader.” 2019. Thesis, Brno University of Technology. Accessed January 16, 2021. http://hdl.handle.net/11012/40359.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Koksa, David. “Motorová jednotka stavebního nakládacího stroje: The engine unit of a loader.” 2019. Web. 16 Jan 2021.

Vancouver:

Koksa D. Motorová jednotka stavebního nakládacího stroje: The engine unit of a loader. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/11012/40359.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Koksa D. Motorová jednotka stavebního nakládacího stroje: The engine unit of a loader. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/40359

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

26. Petr, Tomáš. Motorová jednotka lesního těžebního stroje: The engine unit of forestry harvestor.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/39414

► At the beginning of bachelor´s thesis is description of harvester and its main parts. Then research of four six – wheeled forestry harvesters was developed.… (more)

Subjects/Keywords: Harvestor; motor; trakční výkon; valivý odpor; tlak; rychlost; Harvester; engine; traction power; rolling resistance; pressure; speed

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APA (6^th Edition):

Petr, T. (2018). Motorová jednotka lesního těžebního stroje: The engine unit of forestry harvestor. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/39414

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Petr, Tomáš. “Motorová jednotka lesního těžebního stroje: The engine unit of forestry harvestor.” 2018. Thesis, Brno University of Technology. Accessed January 16, 2021. http://hdl.handle.net/11012/39414.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Petr, Tomáš. “Motorová jednotka lesního těžebního stroje: The engine unit of forestry harvestor.” 2018. Web. 16 Jan 2021.

Vancouver:

Petr T. Motorová jednotka lesního těžebního stroje: The engine unit of forestry harvestor. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/11012/39414.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Petr T. Motorová jednotka lesního těžebního stroje: The engine unit of forestry harvestor. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/39414

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Michigan

27. Zabihi, Nina. Investigating the Simple Shear Response of Gravelly Soils Using the Discrete Element Method.

Degree: PhD, Civil Engineering, 2020, University of Michigan

URL: http://hdl.handle.net/2027.42/163196

► Understanding the simple shear behavior of soils is very important in many geotechnical engineering problems such as earthquakes and slope stability. The response of gravelly… (more)

▼ Understanding the simple shear behavior of soils is very important in many geotechnical engineering problems such as earthquakes and slope stability. The response of gravelly soils is particularly critical for understanding the performance of earth and rockfill dams, and other gravel embankments and fills. The observed gravelly soil liquefaction during recent earthquakes (2008 Wenchuan, China, 2014 Cephalonia, Greece, and 2016 Kaikoura, New Zealand) have highlighted the need for improved understanding of the seismic response of gravels to improve infrastructure. Given the advances in computational power, particle-based discrete element methods have been progressively used in analyzing soil behavior. However, these models have only been validated by comparing simulation and experimental results using idealized granular materials. When real soil is introduced, existing laboratory tests have used sandy soils that cannot be 1:1 modeled in discrete elements due to the extremely large number of particles that render the needed computational time unrealistic. This dissertation addresses these limitations by validating 3D DEM analyses using results from laboratory tests on real soils, where each particle is accounted for and is characterized by size and shape. Results from 3D Discrete Element Modeling, large scale stacked-ring simple shear laboratory tests and Translucent Segregation Table (TST) tests are integrated to investigate the monotonic and cyclic behavior of Pea gravel specimens. 3D DEM simulations of this study, by considering a realistic algorithm for modeling the movement of stacked rings, indicate that extra caution should be taken and necessary modifications should be applied for testing rounded to sub-rounded granular materials in stacked-ring simple shear device under constant volume condition to ensure proper imposition of simple shear deformation on the specimen. It is also shown that incorporating both the irregularity and non-uniformity of particles shape by assigning a distribution of rolling resistance to the equivalent spherical particles (used to reduce the computational effort) is crucial for acknowledging the diversity of particle shapes and providing a realistic representation of soil assembly in the numerical simulations. Such simulations are more reliable in predicting the behavior of actual soil and provide valuable information on the complex behavior at the micro- and meso-scale, which can eventually be used in developing more robust constitutive models based on the micromechanical response of granular assemblies. Results from the DEM simulations in this study allow for a better understanding of soil response during constant volume simple shear testing. For example, evaluating the stress state at the specimen core, it is shown that a single assumption should not be made about the stress state inside the specimen during the whole course of shearing. The DEM simulation results also suggest that the level of density can affect the level of shear strain at which each of the assumptions may be… Advisors/Committee Members: Athanasopoulos-Zekkos, Adda (committee member), Michalowski, Radoslaw L (committee member), Young, Yin Lu (committee member), Zekkos, Dimitrios (committee member).

Subjects/Keywords: Simple Shear Response; Gravelly Soils; Discrete Element Method; Constant Volume; Rolling Resistance; Civil and Environmental Engineering; Engineering

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APA (6^th Edition):

Zabihi, N. (2020). Investigating the Simple Shear Response of Gravelly Soils Using the Discrete Element Method. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/163196

Chicago Manual of Style (16^th Edition):

Zabihi, Nina. “Investigating the Simple Shear Response of Gravelly Soils Using the Discrete Element Method.” 2020. Doctoral Dissertation, University of Michigan. Accessed January 16, 2021. http://hdl.handle.net/2027.42/163196.

MLA Handbook (7^th Edition):

Zabihi, Nina. “Investigating the Simple Shear Response of Gravelly Soils Using the Discrete Element Method.” 2020. Web. 16 Jan 2021.

Vancouver:

Zabihi N. Investigating the Simple Shear Response of Gravelly Soils Using the Discrete Element Method. [Internet] [Doctoral dissertation]. University of Michigan; 2020. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/2027.42/163196.

Council of Science Editors:

Zabihi N. Investigating the Simple Shear Response of Gravelly Soils Using the Discrete Element Method. [Doctoral Dissertation]. University of Michigan; 2020. Available from: http://hdl.handle.net/2027.42/163196

Brno University of Technology

28. Pokorný, Pavel. Program pro optimalizaci převodových stupňů: Software for Optimalization of Gear Speed.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/12195

► Rolling vehicle is being influenced both by driver and many other factors of physical nature. These factors affect the whole behavior of the car, its… (more)

Subjects/Keywords: Jízdní odpory; pilový diagram; valivý odpor; vzdušný odpor; vztlak; odpor stoupání; odpor zrychlení; odpor přívěsu; stálý převod; převodovky; odstupňování převodů.; Rolling resistance; saw diagram; aerodynamic resistance; aerodynamic lift; climb resistance; acceleration resistance; trailer resistance; permanent transfer; transmissions; gear graduation.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pokorný, P. (2019). Program pro optimalizaci převodových stupňů: Software for Optimalization of Gear Speed. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/12195

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pokorný, Pavel. “Program pro optimalizaci převodových stupňů: Software for Optimalization of Gear Speed.” 2019. Thesis, Brno University of Technology. Accessed January 16, 2021. http://hdl.handle.net/11012/12195.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pokorný, Pavel. “Program pro optimalizaci převodových stupňů: Software for Optimalization of Gear Speed.” 2019. Web. 16 Jan 2021.

Vancouver:

Pokorný P. Program pro optimalizaci převodových stupňů: Software for Optimalization of Gear Speed. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/11012/12195.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pokorný P. Program pro optimalizaci převodových stupňů: Software for Optimalization of Gear Speed. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/12195

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

29. Prachař, Roman. Jízdní odpory vozidel: Road Resistances of Vehicles.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/12362

► his thesis deals with the analysis of particular road resistances that affect the car. It describes their importance and factors that influence their size. This… (more)

Subjects/Keywords: Jízdní odpory; odpor valivý; odpor vzdušný; dojezdová zkouška; aerodynamika; součinitel vzdušného odporu; ekonomika provozu vozidla.; Road resistance; rolling resistance; air resistance; landing run exam; aerodynamics; coefficient of air resistance; the economy of vehicle.

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APA (6^th Edition):

Prachař, R. (2019). Jízdní odpory vozidel: Road Resistances of Vehicles. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/12362

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Prachař, Roman. “Jízdní odpory vozidel: Road Resistances of Vehicles.” 2019. Thesis, Brno University of Technology. Accessed January 16, 2021. http://hdl.handle.net/11012/12362.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Prachař, Roman. “Jízdní odpory vozidel: Road Resistances of Vehicles.” 2019. Web. 16 Jan 2021.

Vancouver:

Prachař R. Jízdní odpory vozidel: Road Resistances of Vehicles. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/11012/12362.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Prachař R. Jízdní odpory vozidel: Road Resistances of Vehicles. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/12362

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

30. Harvey, Jr., Philip Scott. Rolling Isolation Systems: Modeling, Analysis, and Assessment .

Degree: 2013, Duke University

URL: http://hdl.handle.net/10161/8012

► The rolling isolation system (RIS) studied in this dissertation functions on the principle of a rolling pendulum; an isolated object rests on a steel… (more)

▼ The rolling isolation system (RIS) studied in this dissertation functions on the principle of a rolling pendulum; an isolated object rests on a steel frame that is supported at its corners by ball-bearings that roll between shallow steel bowls, dynamically decoupling the floor motion from the response of the object. The primary focus of this dissertation is to develop predictive models that can capture experimentally-observed phenomena and to advance the state-of-the-art by proposing new isolation technologies to surmount current performance limitations. To wit, a double RIS increases the system's displacement capacity, and semi-active and passive damped RISs suppress the system's displacement response. This dissertation illustrates the performance of various high-performance isolation strategies using experimentally-validated predictive models. Effective modeling of RISs is complicated by the nonholonomic and chaotic nature of these systems which to date has not received much attention. Motivated by this observation, the first part of this dissertation addresses the high-fidelity modeling of a single, undamped RIS, and later this theory is augmented to account for the double (or stacked) configuration and the supplemental damping via rubber-coated bowl surfaces. The system's potential energy function (i.e. conical bowl shape) and energy dissipation model are calibrated to free-response experiments. Forced-response experiments successfully validate the models by comparing measured and predicted peak displacement and acceleration responses over a range of operating conditions. Following the experimental analyses, numerical simulations demonstrate the potential benefits of the proposed technologies. This dissertation presents a method to optimize damping force trajectories subject to constraints imposed by the physical implementation of a particular controllable damper. Potential improvements in terms of acceleration response are shown to be achievable with the semi-active RIS. Finally, extensive time-history analyses establish how the undamped and damped RISs perform when located inside biaxial, hysteretic, multi-story structures under recorded earthquake ground motions. General design recommendations, supported by critical-disturbance spectra and peak-response distributions, are prescribed so as to ensure the uninterrupted operation of vital equipment. Advisors/Committee Members: Gavin, Henri P (advisor).

Subjects/Keywords: Civil engineering; Engineering; Mechanics; equipment isolation; optimal control; rolling isolation; rolling resistance; seismic isolation; vibration suppression

…164 Experimental Characterization of Rolling Resistance . . . . . . . . . . . 166 9.3.1… …166 9.4 Schematic and photograph of the rolling resistance experimental set-up . 167 9.5… …Measured shaking table velocity; measured and fitted rolling resistance Rr time histories: P… …rolling resistance Rr versus displacement and velocity for a load of Pk = 901 N… …ball-bearing. Rr Rolling resistance. µ Load-dependent force level. Hazard Analysis and…

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APA (6^th Edition):

Harvey, Jr., P. S. (2013). Rolling Isolation Systems: Modeling, Analysis, and Assessment . (Thesis). Duke University. Retrieved from http://hdl.handle.net/10161/8012

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Harvey, Jr., Philip Scott. “Rolling Isolation Systems: Modeling, Analysis, and Assessment .” 2013. Thesis, Duke University. Accessed January 16, 2021. http://hdl.handle.net/10161/8012.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Harvey, Jr., Philip Scott. “Rolling Isolation Systems: Modeling, Analysis, and Assessment .” 2013. Web. 16 Jan 2021.

Vancouver:

Harvey, Jr. PS. Rolling Isolation Systems: Modeling, Analysis, and Assessment . [Internet] [Thesis]. Duke University; 2013. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/10161/8012.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Harvey, Jr. PS. Rolling Isolation Systems: Modeling, Analysis, and Assessment . [Thesis]. Duke University; 2013. Available from: http://hdl.handle.net/10161/8012

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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