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Virginia Tech
1.
Veppathur Sivaramakrishnan, Srikanth.
Discrete Tire Modeling for Anti-lock Braking System Simulations.
Degree: MS, Mechanical Engineering, 2013, Virginia Tech
URL: http://hdl.handle.net/10919/51424 
► Tires play an extremely important role in the operation of a vehicle as they transmit forces between the ground and the vehicle. Consistent efforts have…
(more)
▼ Tires play an extremely important role in the operation of a vehicle as they transmit forces between the ground and the vehicle. Consistent efforts have been made over the years towards modeling and simulation of tires and more recently, there has been an increasing need to understand the transient response of tires to various high-frequency events such as anti-lock braking and short-wavelength disturbances from the road. Major thrust has been provided by the
tire industry to develop simulation models that accurately predict the dynamic response of tires without the use of computationally intensive tools such as FEA. The objective of this research is to explain the development, implementation and validation of a simulation tool based on a dynamic
tire model that would assist in the analysis of the effect of
tire belt vibrations on the braking performance of a vehicle. A
rigid ring
tire model, tandem elliptical cam enveloping model and a rule-based ABS model have been developed for this purpose. These were combined together in a quarter vehicle model and implemented in Matlab-Simulink. These models were developed for adaptation with CarSim to provide a simulation tool that can be utilized in both
tire and vehicle design processes. In addition to model implementation, a parameterization procedure was developed to estimate the parameters of the
rigid ring
tire and enveloping model based on experimental data for a given
tire. Validation studies have also been performed to ensure the accuracy and validity of the
tire model. Following this, the braking performance of ABS under different road surfaces were evaluated. Based on the simulation results, final conclusions were drawn with regards to the analysis and detailed recommendations for future work directed towards the improvement of the tool were provided.
Advisors/Committee Members: Taheri, Saied (committeechair), West, Robert L. (committee member), Ahmadian, Mehdi (committee member).
Subjects/Keywords: Tire Modeling; ABS; Rigid Ring; Enveloping
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APA (6th Edition):
Veppathur Sivaramakrishnan, S. (2013). Discrete Tire Modeling for Anti-lock Braking System Simulations. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/51424
Chicago Manual of Style (16th Edition):
Veppathur Sivaramakrishnan, Srikanth. “Discrete Tire Modeling for Anti-lock Braking System Simulations.” 2013. Masters Thesis, Virginia Tech. Accessed January 19, 2021.
http://hdl.handle.net/10919/51424.
MLA Handbook (7th Edition):
Veppathur Sivaramakrishnan, Srikanth. “Discrete Tire Modeling for Anti-lock Braking System Simulations.” 2013. Web. 19 Jan 2021.
Vancouver:
Veppathur Sivaramakrishnan S. Discrete Tire Modeling for Anti-lock Braking System Simulations. [Internet] [Masters thesis]. Virginia Tech; 2013. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/10919/51424.
Council of Science Editors:
Veppathur Sivaramakrishnan S. Discrete Tire Modeling for Anti-lock Braking System Simulations. [Masters Thesis]. Virginia Tech; 2013. Available from: http://hdl.handle.net/10919/51424
Virginia Tech
2.
Khanse, Karan Rajiv.
Development and Validation of a Tool for In-Plane Antilock Braking System (ABS) Simulations.
Degree: MS, Mechanical Engineering, 2015, Virginia Tech
URL: http://hdl.handle.net/10919/56567
► Automotive and Tire companies spend extensive amounts of time and money to tune their products through prototype testing at dedicated test facilities. This is mainly…
(more)
▼ Automotive and
Tire companies spend extensive amounts of time and money to tune their products through prototype testing at dedicated test facilities. This is mainly due to the limitations in the simulation capabilities that exist today. With greater competence in simulation, comes more control over designs in the initial stages, which in turn lowers the demand on the expensive stage of tuning. The work presented, aims at taking today's simulation capabilities a step forward by integrating models that are best developed in different software interfaces. An in-plane
rigid ring model is used to understand the transient response of tires to various high frequency events such as Anti-Lock Braking and short wavelength road disturbances. A rule based ABS model performs the high frequency braking operation. The
tire and ABS models have been created in the Matlab-Simulink environment. The vehicle model has been developed in CarSim. The models developed in Simulink have been integrated with the vehicle model in CarSim, in the form of a design tool that can be used by
tire as well as vehicle designers for further tuning of the vehicle functional performances as they relate to in-line braking scenarios. Outdoor validation tests were performed to obtain data from a vehicle that was measured on a suspension parameter measuring machine (SPMM) in order to complement this design tool. The results of the objective tests performed have been discussed and the correlations and variations with respect to the simulation results have been analyzed.
Advisors/Committee Members: Taheri, Saied (committeechair), Kennedy, Ronald H. (committee member), Sandu, Corina (committee member).
Subjects/Keywords: Vehicle Model; CarSim; Tire Model; Rigid Ring; ABS
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APA (6th Edition):
Khanse, K. R. (2015). Development and Validation of a Tool for In-Plane Antilock Braking System (ABS) Simulations. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/56567
Chicago Manual of Style (16th Edition):
Khanse, Karan Rajiv. “Development and Validation of a Tool for In-Plane Antilock Braking System (ABS) Simulations.” 2015. Masters Thesis, Virginia Tech. Accessed January 19, 2021.
http://hdl.handle.net/10919/56567.
MLA Handbook (7th Edition):
Khanse, Karan Rajiv. “Development and Validation of a Tool for In-Plane Antilock Braking System (ABS) Simulations.” 2015. Web. 19 Jan 2021.
Vancouver:
Khanse KR. Development and Validation of a Tool for In-Plane Antilock Braking System (ABS) Simulations. [Internet] [Masters thesis]. Virginia Tech; 2015. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/10919/56567.
Council of Science Editors:
Khanse KR. Development and Validation of a Tool for In-Plane Antilock Braking System (ABS) Simulations. [Masters Thesis]. Virginia Tech; 2015. Available from: http://hdl.handle.net/10919/56567
University of Ontario Institute of Technology
3.
Lardner, Kristian Lee.
Prediction of the off-road rigid-ring model parameters for truck tire and soft soil interactions.
Degree: 2017, University of Ontario Institute of Technology
URL: http://hdl.handle.net/10155/802
► Significant time and cost savings can be realized through the use of virtual simulation of testing procedures across diverse areas of research and development. Fully…
(more)
▼ Significant time and cost savings can be realized through the use of virtual simulation of testing procedures across diverse areas of research and development. Fully detailed virtual truck models using the simplified off-road
rigid-ring model parameters may further increase these economical savings within the automotive industry. The determination of the off-road
rigid-ring parameters is meant to facilitate the simulation of full vehicle models developed by Volvo Group Trucks Technology. This works features new FEA (Finite Element Analysis)
tire and SPH (Smoothed Particle Hydrodynamics) soil interaction modeling techniques. The in-plane and out-of-plane off-road
rigid-ring parameters are predicted for an RHD (Regional Haul Drive) truck
tire at varying operating conditions. The
tire model is validated through static and dynamic virtual tests that are compared to previously published literature.
Both the in-plane and out-of-plane off-road
rigid-ring RHD parameters were successfully predicted. The majority of the in-plane parameters are strongly influenced by the inflation pressure of the
tire because the in-plane parameters are derived with respect to the mode of vibration of the
tire. The total equivalent vertical stiffness on a dry sand is not as heavily influenced by the inflation pressure compared to predictions on a hard surface. For perspective, at 110 psi, the dry sand total vertical stiffness is nearly nine times smaller than that determined on the hard surface, while the lateral stiffness on soft soil (Dry Sand) is at a minimal of three times higher than that of the corresponding values tested on a hard surface. The cornering stiffness is primarily load dependant because the inflation pressure is only noticeably influential at high vertical loads. More importantly, the soil builds in front of the
tire, creating what is called a bulldozing effect, during high slip angles. The additional lateral force of the soil exerted onto the
tire during cornering maneuvers may contribute to higher than expected results and may be confirmed through future investigation of the cohesion of the soil model.
Advisors/Committee Members: El-Gindy, Moustafa.
Subjects/Keywords: FEA (Finite Element Analysis); SPH (Smoothed Particle Hydrodynamics); RHD (Regional Haul Drive truck tire); Off-Road Rigid-Ring Tire Model
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APA (6th Edition):
Lardner, K. L. (2017). Prediction of the off-road rigid-ring model parameters for truck tire and soft soil interactions. (Thesis). University of Ontario Institute of Technology. Retrieved from http://hdl.handle.net/10155/802
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lardner, Kristian Lee. “Prediction of the off-road rigid-ring model parameters for truck tire and soft soil interactions.” 2017. Thesis, University of Ontario Institute of Technology. Accessed January 19, 2021.
http://hdl.handle.net/10155/802.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lardner, Kristian Lee. “Prediction of the off-road rigid-ring model parameters for truck tire and soft soil interactions.” 2017. Web. 19 Jan 2021.
Vancouver:
Lardner KL. Prediction of the off-road rigid-ring model parameters for truck tire and soft soil interactions. [Internet] [Thesis]. University of Ontario Institute of Technology; 2017. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/10155/802.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lardner KL. Prediction of the off-road rigid-ring model parameters for truck tire and soft soil interactions. [Thesis]. University of Ontario Institute of Technology; 2017. Available from: http://hdl.handle.net/10155/802
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Virginia Tech
4.
Siramdasu, Yaswanth.
Discrete Tire Model Application for Vehicle Dynamics Performance Enhancement.
Degree: PhD, Mechanical Engineering, 2015, Virginia Tech
URL: http://hdl.handle.net/10919/74394
► Tires are the most influential component of the vehicle as they constitute the only contact between the vehicle and the road and have to generate…
(more)
▼ Tires are the most influential component of the vehicle as they constitute the only contact
between the vehicle and the road and have to generate and transmit forces necessary for
the driver to control the vehicle. The demand for the
tire models are increasing due to
the need to study the variations of force generation mechanisms due to various variables
such as load, pressure, speed, and road surface irregularities. Another need from the vehicle
manufactures is the study of potential incompatibilities associated with safety systems such
as Anti-lock Braking System (ABS) and Electronic Stability Control (ESC) and tires. For
vehicle dynamic simulations pertaining to the design of safety systems such as ABS, ESC
and ride controllers, an accurate and computationally efficient
tire model is required. As
these control algorithms become more advanced, they require accurate and extended validity
in the range of frequencies required to cover dynamic response due to short wavelength road
disturbances, braking and steering torque variations. Major thrust has been provided by the
tire industry to develop simulation models that accurately predict the dynamic response of
tires without the use of computationally intensive tools such as FEA.
The objectives of this research are
• To develop, implement and validate a
rigid ring
tire model and a simulation tool
to assist both
tire designers and the automotive industry in analyzing the effects of
tire belt vibrations, road disturbances, and high frequency brake and steering torque
variations on the handling, braking, and ride performances of the vehicle.
• To further enhance the
tire model by considering dynamic stiffness changes and temperature dependent friction properties.
• To develop, and implement novel control algorithms for braking, stability, and ride
performance improvements of the vehicle
Advisors/Committee Members: Taheri, Saied (committeechair), Ahmadian, Mehdi (committee member), Furukawa, Tomonari (committee member), Hajj, Muhammad R. (committee member), Sandu, Corina (committee member).
Subjects/Keywords: Tire Modeling; ABS; Braking; Handling; Ride; Rigid Ring; Enveloping; Tire Vehicle interactions; Performance metrics; Uneven road
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APA (6th Edition):
Siramdasu, Y. (2015). Discrete Tire Model Application for Vehicle Dynamics Performance Enhancement. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/74394
Chicago Manual of Style (16th Edition):
Siramdasu, Yaswanth. “Discrete Tire Model Application for Vehicle Dynamics Performance Enhancement.” 2015. Doctoral Dissertation, Virginia Tech. Accessed January 19, 2021.
http://hdl.handle.net/10919/74394.
MLA Handbook (7th Edition):
Siramdasu, Yaswanth. “Discrete Tire Model Application for Vehicle Dynamics Performance Enhancement.” 2015. Web. 19 Jan 2021.
Vancouver:
Siramdasu Y. Discrete Tire Model Application for Vehicle Dynamics Performance Enhancement. [Internet] [Doctoral dissertation]. Virginia Tech; 2015. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/10919/74394.
Council of Science Editors:
Siramdasu Y. Discrete Tire Model Application for Vehicle Dynamics Performance Enhancement. [Doctoral Dissertation]. Virginia Tech; 2015. Available from: http://hdl.handle.net/10919/74394
Penn State University
5.
Chae, Seokyong.
NONLINEAR FINITE ELEMENT MODELING AND ANALYSIS OF A TRUCK TIRE
.
Degree: 2008, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/7047
► For an efficient full vehicle model simulation, a multi-body system (MBS) simulation is frequently adopted. By conducting the MBS simulations, the dynamic and steady-state responses…
(more)
▼ For an efficient full vehicle model simulation, a multi-body system (MBS) simulation is frequently adopted. By conducting the MBS simulations, the dynamic and steady-state responses of the sprung mass can be shortly predicted when the vehicle runs on an irregular road surface such as step curb or pothole. A multi-body vehicle model consists of a sprung mass, simplified
tire model, and suspension system to connect them. For the simplified
tire model, a
rigid ring
tire model is mostly used due to its efficiency.
The
rigid ring
tire model consists of a
rigid ring representing the tread and the belt, elastic sidewalls, and
rigid rim. Several in-plane and out-of-plane parameters need to be determined through
tire tests to represent a real pneumatic
tire. Physical
tire tests are costly and difficult in operations. Thus, the parameters for the
rigid ring
tire model are alternatively predicted by conducting virtual
tire tests using a finite element analysis (FEA)
tire model.
A nonlinear three-dimensional FEA
tire model representing a truck
tire, 295/75R22.5, is constructed by implementing three-layered membrane elements, hyperelastic solid elements, and beam elements. Then, the FEA
tire model is validated by comparing its in-plane and out-of-plane responses with physical measurements. The virtual and physical responses show good agreements. After successful validations of the FEA
tire model, virtual
tire tests are conducted to predict the in-plane and out-of-plane parameters for the
rigid ring
tire models.
The predicted parameters are implemented in the
rigid ring
tire model, and the model undergoes water drainage ditches 90¡Æ and 45¡Æ to the
tire running direction to predict dynamic in-plane and out-of-plane
tire responses at various
tire loads. Vertical displacement of the
tire spindle,
tire contact forces, and moments are plotted and compared with those of the FEA
tire model. The in-plane
tire responses show good agreements between the results of the two models. On the other hand, the out-of-plane
tire responses are relatively not in good agreements due to the significantly different
tire contact area geometries of the two
tire models on the 45¡Æ ditch.
In the simulations of the FEA and
rigid ring
tire models, only constant vertical
tire load is applied to the
tire models. Additional
tire load due to the vertical acceleration of the sprung mass during
tire operations is not considered. Thus, a sprung mass and suspension system is assembled with the
tire models to include the effect of the vertical sprung mass motion, which represents a quarter-vehicle model and a closer model to real vehicle applications. Then, the models undergo a 90¡Æ ditch at various running speeds. The vertical accelerations of the
tire spindles are predicted during the ditch runs and compared with measurements to check whether or not the
rigid ring
tire model in the quarter-vehicle environment predicts acceptable responses.
Modern high computational capability enables to establish a reliable virtual
tire and quarter-vehicle model test…
Advisors/Committee Members: Moustafa El Gindy, Committee Chair/Co-Chair, James Patrick Runt, Committee Chair/Co-Chair, Charles E Bakis, Committee Member, Ashok D Belegundu, Committee Member.
Subjects/Keywords: Truck Tire Model; FEA; Rigid Ring Tire Model; Quarter Vehicle Model; Durability Test
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APA ·
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Export
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Manager
APA (6th Edition):
Chae, S. (2008). NONLINEAR FINITE ELEMENT MODELING AND ANALYSIS OF A TRUCK TIRE
. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/7047
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chae, Seokyong. “NONLINEAR FINITE ELEMENT MODELING AND ANALYSIS OF A TRUCK TIRE
.” 2008. Thesis, Penn State University. Accessed January 19, 2021.
https://submit-etda.libraries.psu.edu/catalog/7047.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chae, Seokyong. “NONLINEAR FINITE ELEMENT MODELING AND ANALYSIS OF A TRUCK TIRE
.” 2008. Web. 19 Jan 2021.
Vancouver:
Chae S. NONLINEAR FINITE ELEMENT MODELING AND ANALYSIS OF A TRUCK TIRE
. [Internet] [Thesis]. Penn State University; 2008. [cited 2021 Jan 19].
Available from: https://submit-etda.libraries.psu.edu/catalog/7047.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chae S. NONLINEAR FINITE ELEMENT MODELING AND ANALYSIS OF A TRUCK TIRE
. [Thesis]. Penn State University; 2008. Available from: https://submit-etda.libraries.psu.edu/catalog/7047
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Penn State University
6.
Slade, Jeffrey Lawrence.
DEVELOPMENT OF A NEW OFF-ROAD RIGID RING MODEL FOR TRUCK TIRES USING FINITE ELEMENT ANALYSIS TECHNIQUES
.
Degree: 2009, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/10075
► Finite Element Analysis (FEA) is a powerful tool which allows researchers to use computers to quickly perform simulations of many complex physical objects. In this…
(more)
▼ Finite Element Analysis (FEA) is a powerful tool which allows researchers to use computers to quickly perform simulations of many complex physical objects. In this thesis, non-linear three dimensional FEA models are developed using PAM-CRASH to perform simulations of heavy truck tires running on both
rigid surfaces and soils. These models include an FEA truck
tire model and an elastic-plastic FEA soil model. The FEA models are then used to calculate parameters for a new semi-empirical off-road
rigid ring model.
An FEA truck
tire model of a Goodyear RHD 315/80R22.5 drive
tire for tractor semi-trailers is generated and the properties are tuned to match the manufacturer’s specifications. Simulations are performed under typical loading conditions to establish the behavior of the
tire. An elastic-plastic FEA soil model, designed to represent sandy loam, is developed using material properties from published data and is validated using a number of previously published techniques. The construction of the
tire and soil models and the methods used for validation are explained in detail in this thesis. A comparison between the
tire running on
rigid road and soft soil is made by performing various simulations for both cases.
A new semi-empirical off-road
rigid ring
tire model is developed as a simplified model to describe the behavior of a heavy truck
tire running on soft soil. This model is a modification of the
rigid ring
tire model developed by Pacejka and Zegelaar and includes additional parameters to incorporate the flexibility of the soil.
Rigid ring parameters for the Goodyear RHD 315/80R22.5 truck
tire are calculated for both the on and off-road
rigid ring models.
The results show that, in general, for a
tire running on a sandy loam the motion resistance coefficient is approximately three times higher than on
rigid road. The longitudinal slip stiffness is about a factor of four lower for sandy loam than for
rigid road. This indicates that the available tractive force on sandy loam is about one-fourth of the available tractive force on
rigid road. Interestingly, the longitudinal, or tractive force, appears to continue to increase with slip on sandy loam, while the tractive forces on
rigid road level out after reaching a peak around 20% slip. When the
tire and soil model is run at high slip angle it is noticed that the soil begins to ‘build up’ in front on the
tire, causing an additional lateral force due to the pushing of the soil.
Utilizing well validated and robust FEA models to predict the off-road behavior of tires may reduce the need to perform physical experiments, thereby reducing the cost and time required to obtain results and affect design changes. The off-road
rigid ring model can be used in industry for full vehicle simulations for durability testing and structural dynamics. It is safe to assume that the use of finite element analysis in research and development will continue to rise as the available processing power of computers increases and become cheaper.
Advisors/Committee Members: Dr Moustafa El Gindy, Thesis Advisor/Co-Advisor, Dr Moustafa El Gindy, Thesis Advisor/Co-Advisor, Kevin L Koudela, Thesis Advisor/Co-Advisor.
Subjects/Keywords: Rigid ring model off-road truck tire finite elemen
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APA ·
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Slade, J. L. (2009). DEVELOPMENT OF A NEW OFF-ROAD RIGID RING MODEL FOR TRUCK TIRES USING FINITE ELEMENT ANALYSIS TECHNIQUES
. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/10075
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Slade, Jeffrey Lawrence. “DEVELOPMENT OF A NEW OFF-ROAD RIGID RING MODEL FOR TRUCK TIRES USING FINITE ELEMENT ANALYSIS TECHNIQUES
.” 2009. Thesis, Penn State University. Accessed January 19, 2021.
https://submit-etda.libraries.psu.edu/catalog/10075.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Slade, Jeffrey Lawrence. “DEVELOPMENT OF A NEW OFF-ROAD RIGID RING MODEL FOR TRUCK TIRES USING FINITE ELEMENT ANALYSIS TECHNIQUES
.” 2009. Web. 19 Jan 2021.
Vancouver:
Slade JL. DEVELOPMENT OF A NEW OFF-ROAD RIGID RING MODEL FOR TRUCK TIRES USING FINITE ELEMENT ANALYSIS TECHNIQUES
. [Internet] [Thesis]. Penn State University; 2009. [cited 2021 Jan 19].
Available from: https://submit-etda.libraries.psu.edu/catalog/10075.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Slade JL. DEVELOPMENT OF A NEW OFF-ROAD RIGID RING MODEL FOR TRUCK TIRES USING FINITE ELEMENT ANALYSIS TECHNIQUES
. [Thesis]. Penn State University; 2009. Available from: https://submit-etda.libraries.psu.edu/catalog/10075
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Clemson University
7.
Frey, Norm.
DEVELOPMENT OF A RIGID RING TIRE MODEL AND COMPARISON AMONG VARIOUS TIRE MODELS FOR RIDE COMFORT SIMULATIONS.
Degree: MS, Mechanical Engineering, 2009, Clemson University
URL: https://tigerprints.clemson.edu/all_theses/615
► One vehicle subassembly that is of great importance to automobile manufacturers for tuning final vehicle performance is the pneumatic tire. Pneumatic tires present themselves as…
(more)
▼ One vehicle subassembly that is of great importance to automobile manufacturers for tuning final vehicle performance is the pneumatic
tire. Pneumatic tires present themselves as unique tuning tools as they 1) are the sole link between the roadway surface and the integrated vehicle suspension, chassis and steering systems, and 2) provide a wide range of tunability over many vehicle performances, including handling (steering feel as well as chassis dynamics), traction (braking, driving, and cornering), and ride comfort (roadway isolation). Therefore the vehicle manufacturing industry continues to research and refine various aspects of
tire modeling to improve up-front integrated
tire/vehicle CAE/CAD model fidelity over a wide range of operating conditions. Because tires are highly complex, nonlinear, viscous-elastic composite structures they prove to be difficult to accurately model over their entire operating range. As a result, vehicle and
tire manufacturers continue to work with relatively simple models that adequately represent the
tire for the integrated vehicle performance over an operating regime of interest. This paper evaluates several simple
tire models in order to compare their relative advantages and applicability. One of the
tire models being compared is a new embodiment in MatLab Simulink of a
rigid ring
tire model designed for ride comfort modeling of low-frequency and moderate amplitude roadway inputs, and whose data file is capable of being populated quickly using inexpensive standardized laboratory test methods. In addition to the aforementioned
tire models, several iterations of an F-
Tire tire model are interfaced with Intec's SIMPACK multi-body simulation software as an industry reference.
Advisors/Committee Members: Law, E. H., Haque , Imtiaz-ul, Rhyne , Timothy.
Subjects/Keywords: Multi-Body Simulation; Ride Comfort; Rigid Ring; Tire Model; Engineering Mechanics
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APA ·
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Frey, N. (2009). DEVELOPMENT OF A RIGID RING TIRE MODEL AND COMPARISON AMONG VARIOUS TIRE MODELS FOR RIDE COMFORT SIMULATIONS. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/615
Chicago Manual of Style (16th Edition):
Frey, Norm. “DEVELOPMENT OF A RIGID RING TIRE MODEL AND COMPARISON AMONG VARIOUS TIRE MODELS FOR RIDE COMFORT SIMULATIONS.” 2009. Masters Thesis, Clemson University. Accessed January 19, 2021.
https://tigerprints.clemson.edu/all_theses/615.
MLA Handbook (7th Edition):
Frey, Norm. “DEVELOPMENT OF A RIGID RING TIRE MODEL AND COMPARISON AMONG VARIOUS TIRE MODELS FOR RIDE COMFORT SIMULATIONS.” 2009. Web. 19 Jan 2021.
Vancouver:
Frey N. DEVELOPMENT OF A RIGID RING TIRE MODEL AND COMPARISON AMONG VARIOUS TIRE MODELS FOR RIDE COMFORT SIMULATIONS. [Internet] [Masters thesis]. Clemson University; 2009. [cited 2021 Jan 19].
Available from: https://tigerprints.clemson.edu/all_theses/615.
Council of Science Editors:
Frey N. DEVELOPMENT OF A RIGID RING TIRE MODEL AND COMPARISON AMONG VARIOUS TIRE MODELS FOR RIDE COMFORT SIMULATIONS. [Masters Thesis]. Clemson University; 2009. Available from: https://tigerprints.clemson.edu/all_theses/615
Penn State University
8.
Lescoe, Ryan.
Improvement of Soil Modeling in a Tire-Soil Interaction Using Finite Element Analysis and Smooth Particle Hydrodynamics
.
Degree: 2010, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/10823
► In recent years, the advancement of computerized modeling has allowed for the creation of extensive pneumatic tire models. These models have been used to determine…
(more)
▼ In recent years, the advancement of computerized modeling has allowed for the creation of extensive pneumatic
tire models. These models have been used to determine many
tire properties and
tire-road interaction parameters which are either prohibitively expensive or unavailable with physical models. More recently, computerized modeling has been used to explore
tire-soil interactions. The new parameters created by these interactions were defined for these models, but accurate soil constitutive equations were lacking. With the previous models, the soil was simulated using Finite Element Analysis (FEA) with soil material models requiring calibration and validation. Furthermore, the meshless modeling method of Smooth Particle Hydrodynamics (SPH) may be a viable approach to more accurately simulating large soil deformations and complex
tire-soil interactions.
For this thesis, a
rigid tire model is used to perform an extensive sensitivity study on the previously used FEA soft soil (dense sand) in order to determine the importance of mesh size, soil plot size, and edge constraints. Then, parameters for SPH particles are determined for either complete or partial replacement of FEA elements in the soil model. Rolling resistance tests are conducted with a
rigid tire model for different SPH and FEA/SPH soil models and compared to the previously determined best FEA soil model. Replacement of FEA elements with SPH particles is found to be the key variable as using a deeper amount of SPH particles increases rolling resistance while increasing the SPH particle density has little effect on rolling resistance. These results are then replicated using a pneumatic
tire model.
For further validation, pressure-sinkage tests are conducted with the FEA and SPH soils to explore the differences in the two soil modeling methods. Also, shear-displacement tests are conducted with the SPH soil—a test which cannot easily be performed with an FEA soil model. These shear tests show that the SPH soil behaves more like a clay in initial shearing and more like a sand by exhibiting increased shearing due to vertical loading. Furthermore, both the pressure-sinkage and shear-displacement tests still indicate that a larger particle density is unnecessary.
Advisors/Committee Members: Moustafa El Gindy, Thesis Advisor/Co-Advisor, Moustafa El Gindy, Thesis Advisor/Co-Advisor, Kevin L Koudela, Thesis Advisor/Co-Advisor.
Subjects/Keywords: smoothed; smooth particle hydrodynamics; FEA; finite element analysis; tire-soil interaction; soil modeling; SPH; PAM-Crash; PAM-Shock; pneumatic tire; rigid tire
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APA (6th Edition):
Lescoe, R. (2010). Improvement of Soil Modeling in a Tire-Soil Interaction Using Finite Element Analysis and Smooth Particle Hydrodynamics
. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/10823
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lescoe, Ryan. “Improvement of Soil Modeling in a Tire-Soil Interaction Using Finite Element Analysis and Smooth Particle Hydrodynamics
.” 2010. Thesis, Penn State University. Accessed January 19, 2021.
https://submit-etda.libraries.psu.edu/catalog/10823.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lescoe, Ryan. “Improvement of Soil Modeling in a Tire-Soil Interaction Using Finite Element Analysis and Smooth Particle Hydrodynamics
.” 2010. Web. 19 Jan 2021.
Vancouver:
Lescoe R. Improvement of Soil Modeling in a Tire-Soil Interaction Using Finite Element Analysis and Smooth Particle Hydrodynamics
. [Internet] [Thesis]. Penn State University; 2010. [cited 2021 Jan 19].
Available from: https://submit-etda.libraries.psu.edu/catalog/10823.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lescoe R. Improvement of Soil Modeling in a Tire-Soil Interaction Using Finite Element Analysis and Smooth Particle Hydrodynamics
. [Thesis]. Penn State University; 2010. Available from: https://submit-etda.libraries.psu.edu/catalog/10823
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
9.
Clontz, Matthew Christopher.
A Novel Method for Vibration Analysis of the Tire-Vehicle System via Frequency Based Substructuring.
Degree: PhD, Mechanical Engineering, 2018, Virginia Tech
URL: http://hdl.handle.net/10919/83482
► Noise and vibration transmitted through the tire and suspension system are strong indicators of overall vehicle ride quality. Often, during the tire design process, target…
(more)
▼ Noise and vibration transmitted through the
tire and suspension system are strong indicators of overall vehicle ride quality. Often, during the
tire design process, target specifications are used to achieve the desired ride performance. To validate the design, subjective evaluations are performed by expert drivers. These evaluations are usually done on a test track and are both quite expensive and time consuming due to the several experimental sets of tires that must be manufactured, installed, and then tested on the target vehicle. In order to evaluate the performance, expert drivers tune themselves to the frequency response of the
tire/vehicle combination. Provided the right models exist, this evaluation can also be achieved in a laboratory.
The research presented here is a method which utilizes the principles of frequency based substructuring (FBS) to separate or combine frequency response data for the
tire and suspension. This method allows for the possibility of combining high fidelity
tire models with analytical or experimental suspension data in order to obtain an overall response of the combined system without requiring an experimental setup or comprehensive simulations. Though high fidelity models are not combined with experimental data in the present work, these coupling/decoupling techniques are applied independently to several quarter car models of varying complexity and to experimental data. These models range from a simplified spring-mass model to a generalized 3D model including rotation. Further, decoupling techniques were applied to simulations of a
rigid ring
tire model, which allows for inclusion of nonlinearities present in the
tire subsystem and provides meaningful information for a loaded
tire. By reducing the need for time consuming simulations and experiments, this research has the potential to significantly reduce the time and cost associated with
tire design for ride performance.
In order to validate the process experimentally, a small-scale quarter car test rig was developed. This novel setup was specifically designed for the challenges associated with the testing necessary to apply FBS techniques to the
tire and suspension systems. The small-scale quarter car system was then used to validate both the models and the testing processes unique to this application. By validating the coupling/decoupling process for the first time on the
tire/vehicle system with experimental data, this research can potentially improve the current process of
tire design for ride performance.
Advisors/Committee Members: Taheri, Saied (committeechair), Tarazaga, Pablo Alberto (committee member), Stilwell, Daniel J. (committee member), Ahmadian, Mehdi (committee member), Sandu, Corina (committee member).
Subjects/Keywords: Quarter Car; Frequency Based Substructuring; Decoupling; Tire; Suspension; Tire Design; Rigid Ring Tire; Vibration; Ride Comfort; Small-Scale
…148
Simulated quarter car system with rigid ring tire… …to address nonlinearity from the tire subsystem
Developed simulations for rigid ring… …analytical models. Next, simulations are performed for a rigid ring tire model with nonlinear… …2.2.3
Types of Tire Tests… …81
Figure 8: Tire subsystem denoted as “subsystem A…
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Clontz, M. C. (2018). A Novel Method for Vibration Analysis of the Tire-Vehicle System via Frequency Based Substructuring. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/83482
Chicago Manual of Style (16th Edition):
Clontz, Matthew Christopher. “A Novel Method for Vibration Analysis of the Tire-Vehicle System via Frequency Based Substructuring.” 2018. Doctoral Dissertation, Virginia Tech. Accessed January 19, 2021.
http://hdl.handle.net/10919/83482.
MLA Handbook (7th Edition):
Clontz, Matthew Christopher. “A Novel Method for Vibration Analysis of the Tire-Vehicle System via Frequency Based Substructuring.” 2018. Web. 19 Jan 2021.
Vancouver:
Clontz MC. A Novel Method for Vibration Analysis of the Tire-Vehicle System via Frequency Based Substructuring. [Internet] [Doctoral dissertation]. Virginia Tech; 2018. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/10919/83482.
Council of Science Editors:
Clontz MC. A Novel Method for Vibration Analysis of the Tire-Vehicle System via Frequency Based Substructuring. [Doctoral Dissertation]. Virginia Tech; 2018. Available from: http://hdl.handle.net/10919/83482
. 
Open Access Theses and Dissertations
