subject:(Automotive Applications)

1. Rathnakar, G. High performance laminated composites for automotive applications - a study.

Degree: Mechanical Engineering, 2013, Jawaharlal Nehru Technological University, Anantapuram

URL: http://shodhganga.inflibnet.ac.in/handle/10603/12398

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High strength to weight ratio, directional strength and stiffness are the significant factors, forcing laminated composites into the aerospace, marine, andautomotive industries. Due to these… (more)

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High strength to weight ratio, directional strength and stiffness are the significant factors, forcing laminated composites into the aerospace, marine, andautomotive industries. Due to these major factors fuel efficiency and crashworthinessproperties are the significant out comes from the use of these advanced polymer newlinelaminated composites. Light weight characteristics in structural materials have become one of the basic requirements for all transportation systems. The research and development of high performance structural materials for automotive applications have been focused for a long on the weight saving and minimal environmental impact. Composite panels are subjected to bending load, Prediction of the flexural strength in high performance laminated composites is very important for engineering application yet difficult in nature.The purpose of this work is to analyze the flexural behavior and progressive failure of laminated composites subjected to a bending load. The analysis is based on the classical lamination theory. Only the mechanical properties of constituent Fibre and matrix materials under the bending load condition and the laminate geometric parameters are required. All these data can be measured independently before composite fabrication. As one does not know a prior ply failure corresponds to the ultimate failure, the use of only the stress failure criterion is no longer sufficient for newlinethe determination of the laminate ultimate strength. An additional critical deflection is the laminate deflection corresponding to which the ultimate bending strength is measured. Experiments are carried out to obtain the bending stiffness and strength of laminated composite beams reinforced with Fibres under three - point bending. Using ASTM standards, shear testing of laminated composites is also investigated.Hence, in this work, it is proposed to carry out a detailed experimental work to newlineinvestigate the flexural and shear properties of high performance lightweight laminated composites.

Conclusion p. 228-233, , References p.98

Advisors/Committee Members: Shivanand, H K.

Subjects/Keywords: Mechanical Engineering; Automotive applications; Laminar shear test

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APA (6^th Edition):

Rathnakar, G. (2013). High performance laminated composites for automotive applications - a study. (Thesis). Jawaharlal Nehru Technological University, Anantapuram. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/12398

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):

Rathnakar, G. “High performance laminated composites for automotive applications - a study.” 2013. Thesis, Jawaharlal Nehru Technological University, Anantapuram. Accessed January 21, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/12398.

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

MLA Handbook (7^th Edition):

Rathnakar, G. “High performance laminated composites for automotive applications - a study.” 2013. Web. 21 Jan 2021.

Vancouver:

Rathnakar G. High performance laminated composites for automotive applications - a study. [Internet] [Thesis]. Jawaharlal Nehru Technological University, Anantapuram; 2013. [cited 2021 Jan 21]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/12398.

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

Council of Science Editors:

Rathnakar G. High performance laminated composites for automotive applications - a study. [Thesis]. Jawaharlal Nehru Technological University, Anantapuram; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/12398

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

University of Utah

2. Haslam, Erik Bravant. Development of bonding methods and energy absorption of sandwich panels for thermoplastic advanced composites.

Degree: MS, Mechanical Engineering, 2012, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2009/rec/711

► Given their high strength-to-weight and stiffness-to-weight ratios, sandwich composites continue to be considered for automotive applications. Thermoplastic materials, while difficult to bond, have an increased… (more)

Subjects/Keywords: Sandwich construction; Thermoplastic composites; Sandwich panels; Automotive applications

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APA (6^th Edition):

Haslam, E. B. (2012). Development of bonding methods and energy absorption of sandwich panels for thermoplastic advanced composites. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2009/rec/711

Chicago Manual of Style (16^th Edition):

Haslam, Erik Bravant. “Development of bonding methods and energy absorption of sandwich panels for thermoplastic advanced composites.” 2012. Masters Thesis, University of Utah. Accessed January 21, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2009/rec/711.

MLA Handbook (7^th Edition):

Haslam, Erik Bravant. “Development of bonding methods and energy absorption of sandwich panels for thermoplastic advanced composites.” 2012. Web. 21 Jan 2021.

Vancouver:

Haslam EB. Development of bonding methods and energy absorption of sandwich panels for thermoplastic advanced composites. [Internet] [Masters thesis]. University of Utah; 2012. [cited 2021 Jan 21]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2009/rec/711.

Council of Science Editors:

Haslam EB. Development of bonding methods and energy absorption of sandwich panels for thermoplastic advanced composites. [Masters Thesis]. University of Utah; 2012. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2009/rec/711

Anna University

3. Ramesh kumar T. Development and characterization of aluminium based plain bearing materials for automotive applications;.

Degree: Development and characterization of aluminium based plain bearing materials for automotive applications, 2015, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/49424

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The aluminium alloy containing soft tin and hard silicon phases are widely used as bearing materials in automotive applications because of their excellent mechanical strength… (more)

Subjects/Keywords:

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APA (6^th Edition):

T, R. k. (2015). Development and characterization of aluminium based plain bearing materials for automotive applications;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/49424

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):

T, Ramesh kumar. “Development and characterization of aluminium based plain bearing materials for automotive applications;.” 2015. Thesis, Anna University. Accessed January 21, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/49424.

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

MLA Handbook (7^th Edition):

T, Ramesh kumar. “Development and characterization of aluminium based plain bearing materials for automotive applications;.” 2015. Web. 21 Jan 2021.

Vancouver:

T Rk. Development and characterization of aluminium based plain bearing materials for automotive applications;. [Internet] [Thesis]. Anna University; 2015. [cited 2021 Jan 21]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/49424.

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

Council of Science Editors:

T Rk. Development and characterization of aluminium based plain bearing materials for automotive applications;. [Thesis]. Anna University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/49424

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

Delft University of Technology

4. Chatrath, Karan (author). Vehicle Dynamics Control Using Control Allocation.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:b99bbc10-32a6-45d8-8314-b2f72810569d

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Advancement of the state of the art of automotive technologies is a continuous process. It is essential for automotive engineers to combine the knowledge of… (more)

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Advancement of the state of the art of automotive technologies is a continuous process. It is essential for automotive engineers to combine the knowledge of vehicle dynamics and control theory to develop useful applications that meet requirements of improved safety, comfort and performance. A road vehicle is equipped with several actuators that can assist a user during a dynamic driving task and ensure overall system reliability. Using all available actuators effectively to make a vehicle move in the desired manner is necessary. Typically, the available actuators outnumber the states of motion to be controlled. Such mechanical systems are referred to as over-actuated. An effective way to control an over-actuated system is through the use of control allocation (CA). CA ensures coordination between, and the optimal use, of all available actuators. This strategy also considers the limits of the actuators. Despite its features, a lot of CA methods have a drawback that actuator dynamics are neglected. This drawback has been addressed with a method called model predictive control allocation (MPCA). The behaviour of mechanical actuators is usually approximated by simplified models. Un-modelled system dynamics are always a source of uncertainty. Also, the aging of actuators introduces the element of uncertainty. The ability of MPCA to handle uncertainties is investigated and a solution is proposed to overcome this shortcoming. The proposed solution is the combination of an online adaptive parameter estimator with the MPCA strategy. This way, the CA solver is constantly updated with the parameters of each actuator. This technique is used to design vehicle stability controllers and their performance on simulation is reported. The results indicate that the proposed control allocation technique is effective for vehicle stability control in various scenarios. However, scope for betterment has been recognised and relevant recommendations are made, to conclude this work.

Vehicle Engineering

Advisors/Committee Members: Shyrokau, Barys (mentor), Delft University of Technology (degree granting institution).

Subjects/Keywords: vehicle dynamics control; Control Allocation; Automotive Applications; systems and control

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

APA (6^th Edition):

Chatrath, K. (. (2019). Vehicle Dynamics Control Using Control Allocation. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:b99bbc10-32a6-45d8-8314-b2f72810569d

Chicago Manual of Style (16^th Edition):

Chatrath, Karan (author). “Vehicle Dynamics Control Using Control Allocation.” 2019. Masters Thesis, Delft University of Technology. Accessed January 21, 2021. http://resolver.tudelft.nl/uuid:b99bbc10-32a6-45d8-8314-b2f72810569d.

MLA Handbook (7^th Edition):

Chatrath, Karan (author). “Vehicle Dynamics Control Using Control Allocation.” 2019. Web. 21 Jan 2021.

Vancouver:

Chatrath K(. Vehicle Dynamics Control Using Control Allocation. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 21]. Available from: http://resolver.tudelft.nl/uuid:b99bbc10-32a6-45d8-8314-b2f72810569d.

Council of Science Editors:

Chatrath K(. Vehicle Dynamics Control Using Control Allocation. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:b99bbc10-32a6-45d8-8314-b2f72810569d

University of Guelph

5. Beney, Andrew. Investigation into the Heat Up Time for Solid Oxide Fuel Cells in Automotive Applications.

Degree: Master of Applied Science, School of Engineering, 2018, University of Guelph

URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/14136

► In this study, the heat up times for an SOFC are investigated looking at temperature gradients and thermal stress to determine if the heat up… (more)

Subjects/Keywords: SOFC; Heat up times; Automotive Applications; Temperature Gradients; Thermal Stress

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APA (6^th Edition):

Beney, A. (2018). Investigation into the Heat Up Time for Solid Oxide Fuel Cells in Automotive Applications. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/14136

Chicago Manual of Style (16^th Edition):

Beney, Andrew. “Investigation into the Heat Up Time for Solid Oxide Fuel Cells in Automotive Applications.” 2018. Masters Thesis, University of Guelph. Accessed January 21, 2021. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/14136.

MLA Handbook (7^th Edition):

Beney, Andrew. “Investigation into the Heat Up Time for Solid Oxide Fuel Cells in Automotive Applications.” 2018. Web. 21 Jan 2021.

Vancouver:

Beney A. Investigation into the Heat Up Time for Solid Oxide Fuel Cells in Automotive Applications. [Internet] [Masters thesis]. University of Guelph; 2018. [cited 2021 Jan 21]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/14136.

Council of Science Editors:

Beney A. Investigation into the Heat Up Time for Solid Oxide Fuel Cells in Automotive Applications. [Masters Thesis]. University of Guelph; 2018. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/14136

University of South Carolina

6. Xie, Tianyuan. Development of Ultra-Low Loading of Compressive PT Lattice Cathode Catalyst on Highly Stable Support for PEMFC Automotive Applications.

Degree: PhD, Chemical Engineering, 2015, University of South Carolina

URL: https://scholarcommons.sc.edu/etd/3262

► The major barriers in the commercialization of the fuel cell technology for automotive applications are the cost and durability of the Pt catalyst and… (more)

▼ The major barriers in the commercialization of the fuel cell technology for automotive applications are the cost and durability of the Pt catalyst and the support stability at high potentials. The U.S. Department of Energy (DOE) targets direct hydrogen fuel cell systems for transportation to meet 65% peak-efficiency, 5,000 hour durability with a mass production cost of 40/kW by 2020. Currently in 2015, the system can be operated at peak energy efficiency of 60% for 3,900 hours with cost of 55/kW. To meet these targets, precious metal loadings must be greatly reduced without altering the catalyst stability. The primary objective of this dissertation is to develop highly active and durable hybrid cathode catalysts (HCC) with ultra-low Pt loading for Proton Exchange Membrane Fuel Cells (PEMFC) through interaction of highly active and stable Pt and compressive Pt-lattice (Pt*) catalyst deposited on catalytically active and highly stable carbon composite catalyst (CCC) support and active carbon composite catalyst (A-CCC) support. The HCC activity is enhanced by by the synergistic effect of catalytic active sites for ORR present in the supports and those in Pt and Pt*. The stability of Pt-based catalyst can be greatly improved by doping with transition metal (TM), which weakens interactions between Pt and adsorbents such as OHads and Hupd. Highly active and durable HCC is developed in this study through: (i) synthesis of highly catalytically active and stable Co-containing CCC and A-CCC supports, (ii) surface functionalization and uniform Pt deposition on CCC and A-CCC supports, (iii) performance optimization of Co-doped Pt catalysts by using protective coating to inhibit particle agglomeration and growth during the pyrolysis step, (iv) optimization of Pt/Co ratio and annealing temperature and (v) chemical leaching to remove excess metal used to dope the support. T The support stability has been enhanced through optimization of: (i) Brunauer-Emmett-Teller (BET) surface, (ii) the support structural properties (amorphous/crystalline ratio), and (iii) the hydrophilic/hydrophobic ratio of the supports. During the past five years, the performance and durability of the catalysts were continuously studied. Stability of the catalyst was tested under U. S. DRIVE Fuel Cell Tech Team suggested protocols (a) potential cycling between 0.6 and 1.0 V for 30,000 cycles, (b) potential holding at 1.2 V for 400 h, and (c) potential cycling between 1.0 and 1.5 V for 5,000 cycles. The mass activity, H2-air polarization curve, ECSA, and power density were measured at regular intervals. Detailed results of this work will be discussed in this dissertation. Advisors/Committee Members: Branko N. Popov.

Subjects/Keywords: Chemical Engineering; Engineering; Ultra-low loading; compressive PT lattice; PEMFC; automotive applications

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

APA (6^th Edition):

Xie, T. (2015). Development of Ultra-Low Loading of Compressive PT Lattice Cathode Catalyst on Highly Stable Support for PEMFC Automotive Applications. (Doctoral Dissertation). University of South Carolina. Retrieved from https://scholarcommons.sc.edu/etd/3262

Chicago Manual of Style (16^th Edition):

Xie, Tianyuan. “Development of Ultra-Low Loading of Compressive PT Lattice Cathode Catalyst on Highly Stable Support for PEMFC Automotive Applications.” 2015. Doctoral Dissertation, University of South Carolina. Accessed January 21, 2021. https://scholarcommons.sc.edu/etd/3262.

MLA Handbook (7^th Edition):

Xie, Tianyuan. “Development of Ultra-Low Loading of Compressive PT Lattice Cathode Catalyst on Highly Stable Support for PEMFC Automotive Applications.” 2015. Web. 21 Jan 2021.

Vancouver:

Xie T. Development of Ultra-Low Loading of Compressive PT Lattice Cathode Catalyst on Highly Stable Support for PEMFC Automotive Applications. [Internet] [Doctoral dissertation]. University of South Carolina; 2015. [cited 2021 Jan 21]. Available from: https://scholarcommons.sc.edu/etd/3262.

Council of Science Editors:

Xie T. Development of Ultra-Low Loading of Compressive PT Lattice Cathode Catalyst on Highly Stable Support for PEMFC Automotive Applications. [Doctoral Dissertation]. University of South Carolina; 2015. Available from: https://scholarcommons.sc.edu/etd/3262

University of Michigan

7. Liao-McPherson, Dominic. Variational and Time-Distributed Methods for Real-time Model Predictive Control.

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

URL: http://hdl.handle.net/2027.42/155167

► This dissertation concerns the theoretical, algorithmic, and practical aspects of solving optimal control problems (OCPs) in real-time. The topic is motivated by Model Predictive Control… (more)

▼ This dissertation concerns the theoretical, algorithmic, and practical aspects of solving optimal control problems (OCPs) in real-time. The topic is motivated by Model Predictive Control (MPC), a powerful control technique for constrained, nonlinear systems that computes control actions by solving a parameterized OCP at each sampling instant. To successfully implement MPC, these parameterized OCPs need to be solved in real-time. This is a significant challenge for systems with fast dynamics and/or limited onboard computing power and is often the largest barrier to the deployment of MPC controllers. The contributions of this dissertation are as follows. First, I present a system theoretic analysis of Time-distributed Optimization (TDO) in Model Predictive Control. When implemented using TDO, an MPC controller distributed optimization iterates over time by maintaining a running solution estimate for the optimal control problem and updating it at each sampling instant. The resulting controller can be viewed as a dynamic compensator which is placed in closed-loop with the plant. The resulting coupled plant-optimizer system is analyzed using input-to-state stability concepts and sufficient conditions for stability and constraint satisfaction are derived. When applied to time distributed sequential quadratic programming, the framework significantly extends the existing theoretical analysis for the real-time iteration scheme. Numerical simulations are presented that demonstrate the effectiveness of the scheme. Second, I present the Proximally Stabilized Fischer-Burmeister (FBstab) algorithm for convex quadratic programming. FBstab is a novel algorithm that synergistically combines the proximal point algorithm with a primal-dual semismooth Newton-type method. FBstab is numerically robust, easy to warmstart, handles degenerate primal-dual solutions, detects infeasibility/unboundedness and requires only that the Hessian matrix be positive semidefinite. The chapter outlines the algorithm, provides convergence and convergence rate proofs, and reports some numerical results from model predictive control benchmarks and from the Maros-Meszaros test set. Overall, FBstab shown to be is competitive with state of the art methods and to be especially promising for model predictive control and other parameterized problems. Finally, I present an experimental application of some of the approaches from the first two chapters: Emissions oriented supervisory model predictive control (SMPC) of a diesel engine. The control objective is to reduce engine-out cumulative NOx and total hydrocarbon (THC) emissions. This is accomplished using an MPC controller which minimizes deviation from optimal setpoints, subject to combustion quality constraints, by coordinating the fuel input and the EGR rate target provided to an inner-loop airpath controller. The SMPC controller is implemented using TDO and a variant of FBstab which allows us to achieve sub-millisecond controller execution times. We experimentally demonstrate 10-15% cumulative emissions… Advisors/Committee Members: Kolmanovsky, Ilya Vladimir (committee member), Sun, Jing (committee member), Butts, Kenneth (committee member), Gorodetsky, Alex Arkady (committee member).

Subjects/Keywords: Model Predictive Control; Real-time Optimization; Automotive Applications; Input-to-state Stability; Quadratic Programming; Optimization Algorithms; Engineering (General); Engineering

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

APA (6^th Edition):

Liao-McPherson, D. (2020). Variational and Time-Distributed Methods for Real-time Model Predictive Control. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/155167

Chicago Manual of Style (16^th Edition):

Liao-McPherson, Dominic. “Variational and Time-Distributed Methods for Real-time Model Predictive Control.” 2020. Doctoral Dissertation, University of Michigan. Accessed January 21, 2021. http://hdl.handle.net/2027.42/155167.

MLA Handbook (7^th Edition):

Liao-McPherson, Dominic. “Variational and Time-Distributed Methods for Real-time Model Predictive Control.” 2020. Web. 21 Jan 2021.

Vancouver:

Liao-McPherson D. Variational and Time-Distributed Methods for Real-time Model Predictive Control. [Internet] [Doctoral dissertation]. University of Michigan; 2020. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/2027.42/155167.

Council of Science Editors:

Liao-McPherson D. Variational and Time-Distributed Methods for Real-time Model Predictive Control. [Doctoral Dissertation]. University of Michigan; 2020. Available from: http://hdl.handle.net/2027.42/155167

Brno University of Technology

8. Mikula, Vladimír. Aplikace LED pro signalizační a osvětlovací účely v dopravě: LED based signal lights and luminaires for traffic applications.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/216

► Chief topic of a Master’s Thesis is comparing of conventional sources of light with LED diodes, their characteristics. This work deals with utilizing LED diodes… (more)

Subjects/Keywords: automobilové osvětlení; LED dioda; tradiční zdroje světla; železniční aplikace; automotive lighting; conventional source of light; LED diode; railway applications

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APA (6^th Edition):

Mikula, V. (2018). Aplikace LED pro signalizační a osvětlovací účely v dopravě: LED based signal lights and luminaires for traffic applications. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/216

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):

Mikula, Vladimír. “Aplikace LED pro signalizační a osvětlovací účely v dopravě: LED based signal lights and luminaires for traffic applications.” 2018. Thesis, Brno University of Technology. Accessed January 21, 2021. http://hdl.handle.net/11012/216.

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

MLA Handbook (7^th Edition):

Mikula, Vladimír. “Aplikace LED pro signalizační a osvětlovací účely v dopravě: LED based signal lights and luminaires for traffic applications.” 2018. Web. 21 Jan 2021.

Vancouver:

Mikula V. Aplikace LED pro signalizační a osvětlovací účely v dopravě: LED based signal lights and luminaires for traffic applications. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/11012/216.

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

Council of Science Editors:

Mikula V. Aplikace LED pro signalizační a osvětlovací účely v dopravě: LED based signal lights and luminaires for traffic applications. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/216

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

University of Michigan

9. Ben Mrad, Ridha. A functional approach to nonstationary signal analysis with automotive applications.

Degree: PhD, Systems science, 1994, University of Michigan

URL: http://hdl.handle.net/2027.42/129245

► Motivated by the strong need for the improvement of road vehicle suspensions, this thesis is concerned with theoretical and applied problems pertaining to the proper… (more)

▼ Motivated by the strong need for the improvement of road vehicle suspensions, this thesis is concerned with theoretical and applied problems pertaining to the proper development and operation of fully active suspension systems. Towards this end, a typical quarter-car hydraulic active suspension configuration is studied, and a non-linear computer-simulation mathematical model of it developed. This model captures the dynamics of the actuator and its associated hydraulic components in detail. These components include suspension bushing, pump accumulator, and power and bypass valves. The models of these components capture such physical characteristics as non-linear pressure-flow relationships, fluid compressibility, pump and valve non-linearities, leakages, and seal friction. Simulation results are in substantial qualitative agreement with experimental measurements. The developed model is suitable for analysis, design, control law optimization, and diagnostic strategies development. As part of the vehicle control strategy, the problem of on-board active suspension power demand prediction is considered. Using both simulated and experimental data, the power demand signal is found to be a nonstationary stochastic process, with stationarity approximately achieved in case an averaged version of it is considered. This approximately stationary case is studied first, and two different types of prediction schemes, referred to as direct and indirect, are developed based on novel and fast (microcomputer-suitable) signal estimation/prediction techniques that use the power demand signal history alone. The good performance characteristics of both types of schemes are verified. In addressing the nonstationary case, a broad and basic study on the estimation and prediction of nonstationary stochastic signals is undertaken. Time-varying AutoRegressive Moving Average (TARMA) signal representations, with coefficients being explicit functions of time, are considered. Certain fundamental properties of these models are examined, and a novel and fast estimation and prediction method is developed. By offering a computational complexity that is at least two to three orders of magnitude smaller than that of the alternative Prediction Error approach, overcoming non-linear search procedures and difficulties associated with local extrema, and requiring no initial guess parameter values, this method is the first TARMA approach suitable for engineering applications and unintended operation. The effectiveness of the nonstationary prediction method is finally demonstrated by using experimental vehicle data. Advisors/Committee Members: Fassois, Spilios D. (advisor).

Subjects/Keywords: Analysis; Applications; Approach; Automotive; Functional; Nonstationary; Signal; Suspensions; Vehicle Control

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APA (6^th Edition):

Ben Mrad, R. (1994). A functional approach to nonstationary signal analysis with automotive applications. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/129245

Chicago Manual of Style (16^th Edition):

Ben Mrad, Ridha. “A functional approach to nonstationary signal analysis with automotive applications.” 1994. Doctoral Dissertation, University of Michigan. Accessed January 21, 2021. http://hdl.handle.net/2027.42/129245.

MLA Handbook (7^th Edition):

Ben Mrad, Ridha. “A functional approach to nonstationary signal analysis with automotive applications.” 1994. Web. 21 Jan 2021.

Vancouver:

Ben Mrad R. A functional approach to nonstationary signal analysis with automotive applications. [Internet] [Doctoral dissertation]. University of Michigan; 1994. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/2027.42/129245.

Council of Science Editors:

Ben Mrad R. A functional approach to nonstationary signal analysis with automotive applications. [Doctoral Dissertation]. University of Michigan; 1994. Available from: http://hdl.handle.net/2027.42/129245

University of Michigan

10. Filipovic, Dejan Sokol. Multi-functional slot spiral -based antennas for airborne and automotive applications.

Degree: PhD, Electrical engineering, 2002, University of Michigan

URL: http://hdl.handle.net/2027.42/131810

► In this thesis, several two-arm slot spiral-based antennas for broadband, multi-band and narrow-band operations are developed. Such antennas are aimed at satisfying new requirements for… (more)

▼ In this thesis, several two-arm slot spiral-based antennas for broadband, multi-band and narrow-band operations are developed. Such antennas are aimed at satisfying new requirements for airborne and automotive applications. Specifically, an Archimedean slot spiral is analyzed and developed using computational and experimental studies to improve its low and high frequency operation. A meanderline concept is introduced and combined with other techniques to obtain antenna bandwidth in excess of 100:1 for a multi-functional VHF to S-band aircraft based radar/communication system. New feeding techniques are also developed for the excitation of the 2^nd spiral mode for use in automotive based applications. More specifically, a two arm slot spiral is designed and optimized for multi-band/broadband performance in terms of the input impedance and pattern requirements. It is demonstrated that the inherently broadband radiating structure of the slot spiral can be modified for simultaneous dual-band operation for two resonant, narrow-band systems. It is also demonstrated that this feeding can be easily redesigned for pattern steering at a single frequency, or for the frequency steering operation. Finally, instead of using a single multi-functional spiral and a single cavity, an alternative is to employ multiple cavities to accommodate the different bands and thus allow for more degrees of freedom in the design process. In the context of this modified concept, the bands requiring circularly polarized performance are radiated by a spiral section of the aperture, whereas those restricted to vertical polarization are configured to radiate from a different section and cavity. The radiation elements in the different cavities are then designed to achieve the required pattern and gain performance without adversely affecting coupling among the bands. In comparison to commercially available antennas, the antenna is unique in being small, conformal and integrated. This so called combo-antenna is aimed for simultaneous reception of the SDARS (S&barbelow;atellite D&barbelow;igital A&barbelow;udio R&barbelow;adio S&barbelow;ervices) system and DAB (D&barbelow;igital A&barbelow;udio B&barbelow;roadcasting) system, for automobile based receivers. Advisors/Committee Members: Volakis, John L. (advisor).

Subjects/Keywords: Airborne; Applications; Automotive; Functional; Multi; Slot Antennas; Spiral-based Antennas

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APA (6^th Edition):

Filipovic, D. S. (2002). Multi-functional slot spiral -based antennas for airborne and automotive applications. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/131810

Chicago Manual of Style (16^th Edition):

Filipovic, Dejan Sokol. “Multi-functional slot spiral -based antennas for airborne and automotive applications.” 2002. Doctoral Dissertation, University of Michigan. Accessed January 21, 2021. http://hdl.handle.net/2027.42/131810.

MLA Handbook (7^th Edition):

Filipovic, Dejan Sokol. “Multi-functional slot spiral -based antennas for airborne and automotive applications.” 2002. Web. 21 Jan 2021.

Vancouver:

Filipovic DS. Multi-functional slot spiral -based antennas for airborne and automotive applications. [Internet] [Doctoral dissertation]. University of Michigan; 2002. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/2027.42/131810.

Council of Science Editors:

Filipovic DS. Multi-functional slot spiral -based antennas for airborne and automotive applications. [Doctoral Dissertation]. University of Michigan; 2002. Available from: http://hdl.handle.net/2027.42/131810

University of Michigan

11. Patel, Sanjay Virendra. A microelectronic gas sensor for automotive applications: Characterization of device structure and gas sensitivity.

Degree: PhD, Pure Sciences, 1997, University of Michigan

URL: http://hdl.handle.net/2027.42/130562

► As the environmental protection agency requires increasingly stringent automotive emission controls, new sensor technologies are needed to replace the present oxygen sensors used for air… (more)

▼ As the environmental protection agency requires increasingly stringent automotive emission controls, new sensor technologies are needed to replace the present oxygen sensors used for air to fuel ratio control. This thesis evaluates the viability of silicon-based microfabricated gas sensors for direct emissions measurements. The chemical sensors consisted of a 1.3 μ m SiO₂/Si_3N₄ membrane supported by a 500 μm silicon rim. A heater and a pair of temperature sensors (TSRs) are suspended from the membrane, while thin films of platinum, gold, and titanium were deposited on top of the membrane for use as gas sensitive films. The structural stability of these devices was tested by exposing them to thermal cycles, pressure shocks, and mechanical vibrations. Several devices that were cycled in temperature over 408,000 times showed remarkable stability up to 650\sp∘C. The sensitivity of various films was measured by exposing the devices to parts per million (ppm) levels of hydrogen, carbon monoxide (CO), or propylene at elevated temperatures in the presence of excess oxygen. Changes in film resistance and temperature were used as measures of sensor response to gases. For example, in response to 500 ppm hydrogen exposure at 300\sp∘C, the Pt/Ti film resistance changed by approximately 10%. The thermal response of some Pt/Ti devices to 2500 ppm propylene was approximately 1.5\sp∘C. Decreased film resistance upon introduction of analyte gases was observed and could be attributed to the increased number of charge carriers or increased charge carrier mobility. Pure platinum and Pt/Ti films were more sensitive to hydrogen than either CO or propylene. The response to all three analytes increased with increasing temperatures. Oxidation of the analyte gases resulted in a measurable temperature increase. This calorimetric effect on Pt/Ti and Au/Ti films was investigated as a method of chemical sensing. The gold containing films showed both thermal and resistive responses to propylene and CO at lower temperatures than the Pt/Ti films. Comparing the relative response of different sensing films and utilizing different sensing methods appears to be a promising approach for gas species differentiation in sensor arrays. Advisors/Committee Members: Schwank, Johannes W. (advisor).

Subjects/Keywords: Applications; Automotive; Calorimeter; Characterization; Conductance; Device; Gas; Gold; Microelectronic; Platinum; Sensitivity; Sensor; Structure

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APA (6^th Edition):

Patel, S. V. (1997). A microelectronic gas sensor for automotive applications: Characterization of device structure and gas sensitivity. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/130562

Chicago Manual of Style (16^th Edition):

Patel, Sanjay Virendra. “A microelectronic gas sensor for automotive applications: Characterization of device structure and gas sensitivity.” 1997. Doctoral Dissertation, University of Michigan. Accessed January 21, 2021. http://hdl.handle.net/2027.42/130562.

MLA Handbook (7^th Edition):

Patel, Sanjay Virendra. “A microelectronic gas sensor for automotive applications: Characterization of device structure and gas sensitivity.” 1997. Web. 21 Jan 2021.

Vancouver:

Patel SV. A microelectronic gas sensor for automotive applications: Characterization of device structure and gas sensitivity. [Internet] [Doctoral dissertation]. University of Michigan; 1997. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/2027.42/130562.

Council of Science Editors:

Patel SV. A microelectronic gas sensor for automotive applications: Characterization of device structure and gas sensitivity. [Doctoral Dissertation]. University of Michigan; 1997. Available from: http://hdl.handle.net/2027.42/130562

12. G. Balakum,ar. Development and property evaluation of aluminum alloy reinforced with nano zro2 metal matrix composites nmmcs for automotive applications;.

Degree: Mechanical Engineering, 2015, Jawaharlal Nehru Technological University, Anantapuram

URL: http://shodhganga.inflibnet.ac.in/handle/10603/38602

No newline

conclusion184-192, references 193-208

Advisors/Committee Members: Dr. Joel Hemanth.

Subjects/Keywords: Aluminum Alloy Reinforced; Automotive Applications; Mechanical Engineering; Nano-ZrO2 Metal Matrix

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APA (6^th Edition):

Balakum,ar, G. (2015). Development and property evaluation of aluminum alloy reinforced with nano zro2 metal matrix composites nmmcs for automotive applications;. (Thesis). Jawaharlal Nehru Technological University, Anantapuram. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/38602

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):

Balakum,ar, G.. “Development and property evaluation of aluminum alloy reinforced with nano zro2 metal matrix composites nmmcs for automotive applications;.” 2015. Thesis, Jawaharlal Nehru Technological University, Anantapuram. Accessed January 21, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/38602.

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

MLA Handbook (7^th Edition):

Balakum,ar, G.. “Development and property evaluation of aluminum alloy reinforced with nano zro2 metal matrix composites nmmcs for automotive applications;.” 2015. Web. 21 Jan 2021.

Vancouver:

Balakum,ar G. Development and property evaluation of aluminum alloy reinforced with nano zro2 metal matrix composites nmmcs for automotive applications;. [Internet] [Thesis]. Jawaharlal Nehru Technological University, Anantapuram; 2015. [cited 2021 Jan 21]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/38602.

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

Council of Science Editors:

Balakum,ar G. Development and property evaluation of aluminum alloy reinforced with nano zro2 metal matrix composites nmmcs for automotive applications;. [Thesis]. Jawaharlal Nehru Technological University, Anantapuram; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/38602

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

Indian Institute of Science

13. Mohan, S. Design And Development Of An Improved Anti-Lock Braking System For Two-Wheelers.

Degree: MSc Engg, Faculty of Engineering, 2011, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/1279

► In today’s fast moving world, automobiles are facing challenges in terms of having to survive road accidents, increasing traffic, bad road-conditions and high/express ways. Brake… (more)

▼ In today’s fast moving world, automobiles are facing challenges in terms of having to survive road accidents, increasing traffic, bad road-conditions and high/express ways. Brake systems play a vital role in controlling the vehicle speed while avoiding road accidents. The conventional brake systems consist of basically an actuator, transmission and frictional parts. This system is difficult for manipulated control by the driver during emergency and panic braking situations. In particular road and environmental conditions, it requires certain skill to have safe and effective brake control, which is always not possible from all drivers. Wheel locking is a predominant phenomenon during panic braking and this will cause vehicle skidding resulting in injuries and road accidents. In the case of a two-wheeler, being a single-track vehicle, skidding is one of the major causes for fatal road accidents due to loss in lateral balance. As the road safety regulations are becoming more stringent, the anti-lock brake systems (ABS) will replace the conventional brake systems in all road vehicles to avoid accidents and to improve vehicle safety. Early ABS systems, developed in the last 100-years, use intermittent and cyclic brake pressure control by sensing the wheel speed or wheel-slip as one of the major control inputs. Regulating the brake pressure with a preset threshold value is another method. These ABS systems have used electronics, or hydraulics or pure mechanical control. However, such ABS are not widely used in two-wheelers and other low cost vehicles till now, because of several limitations identified as follows: High cost, power supply needed for its operation in the case of intermittent and cyclic brake control, susceptibility to failure in the electronics system, interference from RF signals (from cell-phones for example), uneasiness to drivers from pedal pulsations with pedal noise, heavier weight, increased vehicle vibrations and failure modes of wheels due to torsional vibrations. The present research work is carried out to develop a new mechanical ABS concept, which will address most of the above problems. During braking, the change in rider-input force will change wheel reactions. This change is made proportional to the change in rider input force only upto wheel locking. Such a principle is used to develop the new mechanical ABS. The new concept regulates the output force from the ABS, by sensing the dynamic wheel reactions with increase in rider-response. The ABS output force is regulated by one of the following ways: (a) Slipping-down the lever-ratio or (b) preventing the excessive brake input force. Based on the parameters like less number of parts, least weight, simplicity, reliability, efficiency, durability, time-response, etc., the second method (of preventing the excessive brake input force) has been chosen. Further a new concept of ABS interconnecting system is proposed for usage between the front and rear wheels of the vehicle. This interconnecting system will ensure that the two mechanical ABS… Advisors/Committee Members: Srinivasa, Udipi (advisor).

Subjects/Keywords: Two Wheelers Lock; Anti-Lock Brake Systems; Vehicles - Models; Vehicle Braking; Anti-Lock Braking Systems - Design; Antilock Brake System; Motor Vehicle Applications; Mechanical ABS; Automotive Engineering

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APA (6^th Edition):

Mohan, S. (2011). Design And Development Of An Improved Anti-Lock Braking System For Two-Wheelers. (Masters Thesis). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/1279

Chicago Manual of Style (16^th Edition):

Mohan, S. “Design And Development Of An Improved Anti-Lock Braking System For Two-Wheelers.” 2011. Masters Thesis, Indian Institute of Science. Accessed January 21, 2021. http://etd.iisc.ac.in/handle/2005/1279.

MLA Handbook (7^th Edition):

Mohan, S. “Design And Development Of An Improved Anti-Lock Braking System For Two-Wheelers.” 2011. Web. 21 Jan 2021.

Vancouver:

Mohan S. Design And Development Of An Improved Anti-Lock Braking System For Two-Wheelers. [Internet] [Masters thesis]. Indian Institute of Science; 2011. [cited 2021 Jan 21]. Available from: http://etd.iisc.ac.in/handle/2005/1279.

Council of Science Editors:

Mohan S. Design And Development Of An Improved Anti-Lock Braking System For Two-Wheelers. [Masters Thesis]. Indian Institute of Science; 2011. Available from: http://etd.iisc.ac.in/handle/2005/1279

14. Chiu, Tzu-Ling. Multiband DRA for automotive applications with beam steering : Antenne multi-bandes à résonateur diélectrique et dépointage de faisceau pour applications automobiles.

Degree: Docteur es, Electronique des hautes fréquences, photonique et systèmes, 2017, Limoges

URL: http://www.theses.fr/2017LIMO0112

►

Les antennes à pointage électronique présentent des avantages significatifs dans les systèmes de communication sans fil. Malgré cela elles ne sont toujours pas implantées dans… (more)

▼

Les antennes à pointage électronique présentent des avantages significatifs dans les systèmes de communication sans fil. Malgré cela elles ne sont toujours pas implantées dans l'industrie automobile. En effet, l'espace limité et le toit en grande partie métallique freinent l’utilisation de ces aériens dans ce contexte contraint. De nombreux défis restent à relever pour concevoir un système efficace, peu encombrant, faible coût et permettant de rayonner sur 360°. L’objectif de cette thèse est donc la mise au point d’une antenne à balayage électronique pour application automobile fonctionnant dans la bande LTE. Un système de «type MIMO » est proposé. Une antenne à résonateur diélectrique efficace, multi-bandes et efficace est conçue selon une procédure de développement spécifique. Un déphaseur accordable est également mis au point et réalisé. Il utilise des commutateurs et un condensateur variable. Un déphasage de 360 degrés est obtenu, le dispositif est commandé électriquement. L’antenne et le déphaseur sont ensuite associés dans un système complet fonctionnant dans la bande LTE. Celui-ci utilise deux antennes identiques, une seule étant alimentée. Ce système complet est mesuré seul et sur le véhicule. Les résultats obtenus sont prometteurs et permettent d’envisager, moyennant quelques améliorations, une exploitation industrielle. Les études menées pour aboutir à ce dispositif sont détaillées dans le manuscrit.

Even though beam steering technology has significant advantages in wireless communication systems, it is still not implemented in the automotive industry. Indeed, the limited space and the large metal sheet on the rooftop are the challenges for such system. This thesis is focused on the design of the LTE beam steering antenna based on a MIMO system for an automotive environment. An appropriate multiband, efficient and compact Dielectric Resonator Antenna is conceived using a specific development procedure. Also, a tunable phase shifter is designed and realized with switches and a variable capacitor. It has 360 degrees phase shift and can be electrically controlled. The proposed DRA and phase shifter are integrated in a global antenna system for automotive application in the LTE band. We finally propose a MIMO system with an active beam steering radiation pattern. It is very compact and can be implemented on the vehicle rooftop. Using the proposed phase shifter, a beam steering antenna is obtained with a global coverage close to 360� for the antenna alone or on the vehicle. Measurements are made in the using context of the antenna. Finally, the developed system is, with some improvement, powerful for powerful enough for "commercial" automotive applications. The studies carried out to develop this antenna are detailed in this manuscript.

Advisors/Committee Members: Monédière, Thierry (thesis director), Pajona, Olivier (thesis director).

Subjects/Keywords: Antenne agile; Dépointage de faisceau; Applications automobiles; Antenne à résonateur diélectrique; Déphaseur; MIMO; Antenne pour LTE; Active steering; Beamforming; Automotive applications; Dielectric resonator antennas (DRAs); Phase shifter; MIMO; LTE antenna; 621.382 5

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APA (6^th Edition):

Chiu, T. (2017). Multiband DRA for automotive applications with beam steering : Antenne multi-bandes à résonateur diélectrique et dépointage de faisceau pour applications automobiles. (Doctoral Dissertation). Limoges. Retrieved from http://www.theses.fr/2017LIMO0112

Chicago Manual of Style (16^th Edition):

Chiu, Tzu-Ling. “Multiband DRA for automotive applications with beam steering : Antenne multi-bandes à résonateur diélectrique et dépointage de faisceau pour applications automobiles.” 2017. Doctoral Dissertation, Limoges. Accessed January 21, 2021. http://www.theses.fr/2017LIMO0112.

MLA Handbook (7^th Edition):

Chiu, Tzu-Ling. “Multiband DRA for automotive applications with beam steering : Antenne multi-bandes à résonateur diélectrique et dépointage de faisceau pour applications automobiles.” 2017. Web. 21 Jan 2021.

Vancouver:

Chiu T. Multiband DRA for automotive applications with beam steering : Antenne multi-bandes à résonateur diélectrique et dépointage de faisceau pour applications automobiles. [Internet] [Doctoral dissertation]. Limoges; 2017. [cited 2021 Jan 21]. Available from: http://www.theses.fr/2017LIMO0112.

Council of Science Editors:

Chiu T. Multiband DRA for automotive applications with beam steering : Antenne multi-bandes à résonateur diélectrique et dépointage de faisceau pour applications automobiles. [Doctoral Dissertation]. Limoges; 2017. Available from: http://www.theses.fr/2017LIMO0112

15. Anza, Inigo. Synthesis of Aluminum-Titanium Carbide Nanocomposites by the Rotating Impeller Gas-Liquid In-situ Method.

Degree: PhD, 2016, Worcester Polytechnic Institute

URL: etd-090616-134444 ; https://digitalcommons.wpi.edu/etd-dissertations/376

► "The next generation of aluminum alloys will have to operate at temperatures approaching 300°C. Traditional aluminum alloys cannot perform at these temperatures, but aluminum alloys… (more)

Subjects/Keywords: particle size control; GIM; growth interruption mechanism; thermodynamics; kinetics; fluid dynamics; microparticles; microcomposites; nanocomposites; aluminum; nanoparticles; titanium carbide; high temperature applications; structural applications; strength; elongation; stiffness; automotive; aeronautics; transportation; gas-liquid in-situ method; rotating impeller; dimensional analysis; scale up

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APA (6^th Edition):

Anza, I. (2016). Synthesis of Aluminum-Titanium Carbide Nanocomposites by the Rotating Impeller Gas-Liquid In-situ Method. (Doctoral Dissertation). Worcester Polytechnic Institute. Retrieved from etd-090616-134444 ; https://digitalcommons.wpi.edu/etd-dissertations/376

Chicago Manual of Style (16^th Edition):

Anza, Inigo. “Synthesis of Aluminum-Titanium Carbide Nanocomposites by the Rotating Impeller Gas-Liquid In-situ Method.” 2016. Doctoral Dissertation, Worcester Polytechnic Institute. Accessed January 21, 2021. etd-090616-134444 ; https://digitalcommons.wpi.edu/etd-dissertations/376.

MLA Handbook (7^th Edition):

Anza, Inigo. “Synthesis of Aluminum-Titanium Carbide Nanocomposites by the Rotating Impeller Gas-Liquid In-situ Method.” 2016. Web. 21 Jan 2021.

Vancouver:

Anza I. Synthesis of Aluminum-Titanium Carbide Nanocomposites by the Rotating Impeller Gas-Liquid In-situ Method. [Internet] [Doctoral dissertation]. Worcester Polytechnic Institute; 2016. [cited 2021 Jan 21]. Available from: etd-090616-134444 ; https://digitalcommons.wpi.edu/etd-dissertations/376.

Council of Science Editors:

Anza I. Synthesis of Aluminum-Titanium Carbide Nanocomposites by the Rotating Impeller Gas-Liquid In-situ Method. [Doctoral Dissertation]. Worcester Polytechnic Institute; 2016. Available from: etd-090616-134444 ; https://digitalcommons.wpi.edu/etd-dissertations/376

University of Michigan

16. Schoenlinner, Bernhard. Compact wide scan -angle antennas for automotive applications and RF MEMS switchable frequency -selective surfaces.

Degree: PhD, Electrical engineering, 2004, University of Michigan

URL: http://hdl.handle.net/2027.42/124178

► The objective of this thesis is to develop antenna systems for automotive radar applications at 24 and 77 GHz, separately and simultaneously, and which combine… (more)

▼ The objective of this thesis is to develop antenna systems for automotive radar applications at 24 and 77 GHz, separately and simultaneously, and which combine good performance with wide scan-angle, compactness, and low cost of production. Tapered-slot antennas (TSAs) are used as feed antennas to a single homogeneous spherical Teflon lens. This is a low-cost solution, and due to the small physical cross-section of the feed antennas, a very wide field of view is possible. The dependence of sidelobe level, directivity, and efficiency on the feed location is investigated in simulations and experiment, and a maximum achievable gain of around 38 dB is found. Using a lens with a radius of 6.42lambda₀ at 77 GHz (25 mm), a sidelobe level of -20 dB and a gain of 29.4 dB is demonstrated which corresponds to a total system efficiency of 49%, not taking the losses in the TSA into account. Next, antenna arrays using a spherical Teflon lens are designed at 24 and 77 GHz with a scan-angle of up to 180° while maintaining a low sidelobe level of -16 to -20 dB. The size of this multibeam antenna design is reduced using a hemispherical Teflon lens with backside metallization instead of a sphere. Further, the feed antennas for 24 and 77 GHz are integrated into a single aperture, using frequency-selective surfaces (FFSs), thus further increasing the compactness of the system. In a related project, this thesis demonstrates the first RF MEMS Switchable frequency-selective surface. A polarization independent FSS using four-legged loaded elements is designed using 2.5 and 3-dimensional electromagnetic solvers and equivalent circuit models. High resistivity bias lines are avoided by connecting the elements through air bridges. The impact of the bias circuitry for normal and oblique incidence is explained and the loading MEMS bridges are placed accordingly. An FSS consisting of 909 unit cells with 3,636 movable membranes is built on a 3<super>″</super> glass wafer using standard micromachining processes. The measured insertion loss at 30.2 GHz in inidband is 2.0 dB in transmit mode (bridges up) and 27 dB in reflection mode (bridges down). The FSS can also be tuned in an analog fashion with a pass-band center frequency of 30.2 to 29.4 GHz. The power handling of the switchable FSS is estimated to be >60 – 100 W before any of the bridges is actuated by the RF power for V_p = 20 – 30 V, or before any thermal limits are reached at the center of the array with active air cooling provided. Advisors/Committee Members: Rebeiz, Gabriel M. (advisor).

Subjects/Keywords: Applications; Automotive; Compact; Frequency-selective Surfaces; Rf Mems; Switchable; Wide Scan-angle Antennas; Wide-scan-angle Antennas

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

APA (6^th Edition):

Schoenlinner, B. (2004). Compact wide scan -angle antennas for automotive applications and RF MEMS switchable frequency -selective surfaces. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/124178

Chicago Manual of Style (16^th Edition):

Schoenlinner, Bernhard. “Compact wide scan -angle antennas for automotive applications and RF MEMS switchable frequency -selective surfaces.” 2004. Doctoral Dissertation, University of Michigan. Accessed January 21, 2021. http://hdl.handle.net/2027.42/124178.

MLA Handbook (7^th Edition):

Schoenlinner, Bernhard. “Compact wide scan -angle antennas for automotive applications and RF MEMS switchable frequency -selective surfaces.” 2004. Web. 21 Jan 2021.

Vancouver:

Schoenlinner B. Compact wide scan -angle antennas for automotive applications and RF MEMS switchable frequency -selective surfaces. [Internet] [Doctoral dissertation]. University of Michigan; 2004. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/2027.42/124178.

Council of Science Editors:

Schoenlinner B. Compact wide scan -angle antennas for automotive applications and RF MEMS switchable frequency -selective surfaces. [Doctoral Dissertation]. University of Michigan; 2004. Available from: http://hdl.handle.net/2027.42/124178

University of Michigan

17. Fan, Hua-Tzu. Next Generation Quality Control: A model-based approach with applications to automotive painting process.

Degree: PhD, Mechanical engineering, 1992, University of Michigan

URL: http://hdl.handle.net/2027.42/128876

► One of the current focuses of Next Generation Quality Control (NGQC) in manufacturing is to build a mathematical model of the process. Once the model… (more)

▼ One of the current focuses of Next Generation Quality Control (NGQC) in manufacturing is to build a mathematical model of the process. Once the model is built, various quality control tasks such as cause-effect analysis, diagnosis, and optimization, can be performed. A hierarchical three-level modeling paradigm is proposed for the task. These three levels of models are analytical models, time series models, and neural network models. The analytical models are the most informative ones and should be attempted whenever the resources are available. In the case that an analytical model is not feasible, a time series model for modeling a dynamic process can be tried. Finally, when knowledge about the process is so incomplete that the above two approaches fail, a neural network model may be applied. Three successful applications of this methodology are reported in this dissertation. An analytical model has been developed to determine the temperature profiles on automotive panels during a paint curing process. This model is capable of predicting the panel temperatures from the paint cure oven operating conditions. Application of this model has provided oven process engineers a quick, accurate, and simple method to optimize paint cure ovens. In the second application, a combination of time series modeling and forecasting compensatory control techniques has been applied to control waterborne basecoat viscosity in the paint shop. A look-up table for manually controlling viscosity on the plant floor is made and an experimental automatic control system is also built and tested. An increase of process capability by 900% in controlling viscosity of Dark Blue Green Metallic basecoat has been obtained in this study. Finally, application of a neural network model in modeling the whole painting process is studied. This model has shown that it can help in predicting quality defects from various process operating conditions 60% better than random guessing. In addition, two modifications on the back-propagation learning algorithm to speed up the network learning are also proposed and tested. Advisors/Committee Members: Wu, Shien-Ming (advisor).

Subjects/Keywords: Applications; Approach; Automotive; Based; Generation; Model; Neural Network; Next; Painting; Process; Quality Control; Time Series

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APA (6^th Edition):

Fan, H. (1992). Next Generation Quality Control: A model-based approach with applications to automotive painting process. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/128876

Chicago Manual of Style (16^th Edition):

Fan, Hua-Tzu. “Next Generation Quality Control: A model-based approach with applications to automotive painting process.” 1992. Doctoral Dissertation, University of Michigan. Accessed January 21, 2021. http://hdl.handle.net/2027.42/128876.

MLA Handbook (7^th Edition):

Fan, Hua-Tzu. “Next Generation Quality Control: A model-based approach with applications to automotive painting process.” 1992. Web. 21 Jan 2021.

Vancouver:

Fan H. Next Generation Quality Control: A model-based approach with applications to automotive painting process. [Internet] [Doctoral dissertation]. University of Michigan; 1992. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/2027.42/128876.

Council of Science Editors:

Fan H. Next Generation Quality Control: A model-based approach with applications to automotive painting process. [Doctoral Dissertation]. University of Michigan; 1992. Available from: http://hdl.handle.net/2027.42/128876

Delft University of Technology

18. Katsaounis, Georgios (author). Extended Object Tracking of Pedestrians in Automotive Applications.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:d7226685-9ffe-417f-9939-2167a9dfd749

► Recent advances in sensor technology have lead to increased resolution of novel sensors, while tracking applications where distance between sensors and objects of interest is… (more)

▼ Recent advances in sensor technology have lead to increased resolution of novel sensors, while tracking applications where distance between sensors and objects of interest is very small have gained research interest recently. In these cases, it is possible that multiple sensor detections are generated by each object of interest. Extended Object Tracking (EOT) approaches consist of algorithms which make use of multiple sensor detections per object to jointly estimate their kinematic and shape extent attributes within the Bayesian tracking framework. In the last decade, various EOT algorithms have been proposed for different types of tracking applications. This M.Sc. thesis project addresses the problem of extended tracking of a single pedestrian walking in the area of a stationary vehicle (referred as ego-vehicle in this report) during a real automotive scenario. The objective is to achieve accurate estimation of both the kinematic attributes (2D centroid position/velocity), as well as its shape extent in x-y plane. In more detail, PreScan software is enabled to design a simulation scenario that is very close to a real automotive application, in terms of motion characteristics of objects of interest and sensor data acquisition. In the considered scenario, different sensor modalities are mounted on the ego-vehicle, namely a Lidar sensor and a mono camera sensor. Moreover, OpenPose library is employed to to obtain pose detections of human body parts from obtained camera images. Concerning shape extent representation, the simplest and most popular approach in previous studies, in general and especially for VRUs tracking, is to assume an elliptical shape. In fact, the Random Matrix Model (RMM), proposed originally by Koch, 2008, is a state-of-the-art EOT state modeling approach that allows for joint estimation of centroid kinematics and physical extent for considered elliptical objects of interest. Based on that, a RMM-based filter using Lidar position measurements has been proposed by Feldmann, 2011. In this project, this algorithm is used as a baseline filter for comparison with our proposed algorithm. In addition, an alternative tracking algorithm is proposed in this study, which has the following differences with respect to the baseline filter: State Initialization of the filter: In our proposed version of the tracking algorithm, human pose detections of shoulders and ankles are are associated with obtained Lidar position measurements in order to provide initial values for the kinematic state (2D position/velocity) and shape parameters (ellipse orientation and semi-axes lengths) of the pedestrian.Measurement Update step of the filter: In our proposed version of the tracking algorithm, camera-obtained pose detections of pedestrian shoulders are associated with obtained Lidar position measurements in order to create an extra measurement, for pedestrian heading angle. Subsequently, a nonlinear filtering update step fusing Lidar-obtained point cloud data for pedestrian position and human-pose-obtained… Advisors/Committee Members: Alonso Mora, Javier (mentor), Domhof, Joris (mentor), Tasoglou, Athanasios (mentor), Gavrila, Dariu (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Extended Object Tracking; Vulnurable Road Users; Pedestrians; Environmental Perception; Automotive Applications; Lidar sensor; Mono camera sensor; Sensor Fusion; Random Matrix Model; Elliptical shape; OpenPose library; Human Pose Detections; position measurement; heading angle measurement; Extended Kalman Filter; Kalman Filter

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

APA (6^th Edition):

Katsaounis, G. (. (2019). Extended Object Tracking of Pedestrians in Automotive Applications. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:d7226685-9ffe-417f-9939-2167a9dfd749

Chicago Manual of Style (16^th Edition):

Katsaounis, Georgios (author). “Extended Object Tracking of Pedestrians in Automotive Applications.” 2019. Masters Thesis, Delft University of Technology. Accessed January 21, 2021. http://resolver.tudelft.nl/uuid:d7226685-9ffe-417f-9939-2167a9dfd749.

MLA Handbook (7^th Edition):

Katsaounis, Georgios (author). “Extended Object Tracking of Pedestrians in Automotive Applications.” 2019. Web. 21 Jan 2021.

Vancouver:

Katsaounis G(. Extended Object Tracking of Pedestrians in Automotive Applications. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 21]. Available from: http://resolver.tudelft.nl/uuid:d7226685-9ffe-417f-9939-2167a9dfd749.

Council of Science Editors:

Katsaounis G(. Extended Object Tracking of Pedestrians in Automotive Applications. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:d7226685-9ffe-417f-9939-2167a9dfd749

Wright State University

19. Keerthi, Sandeep. Low Velocity Impact and RF Response of 3D Printed Heterogeneous Structures.

Degree: MSME, Mechanical Engineering, 2017, Wright State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=wright1514392165695378

► Three-dimensional (3D) printing, a form of Additive manufacturing (AM), is currently being explored to design materials or structures with required Electro-Mechanical-Physical properties. Microstrip patch antennas… (more)

▼ Three-dimensional (3D) printing, a form of Additive manufacturing (AM), is currently being explored to design materials or structures with required Electro-Mechanical-Physical properties. Microstrip patch antennas with a tunable radio-frequency (RF) response are a great candidate for 3D printing process. Due to the nature of extrusion based layered fabrication; the processed parts are of three-layer construction having inherent heterogeneity that affects structural and functional response. The purpose of this study is to identify the relationship between the anisotropy in dielectric properties of AM fabricated acrylonitrile butadiene styrene (ABS) substrates in the RF domain and resonant frequencies of associated patch antennas and also to identify the response of the antenna before and after a low velocity impact. In this study, ANSYS high frequency structure simulator (HFSS) is utilized to analyze RF response of patch antenna and compared with the experimental work. First, a model with dimensions of 50 mm x 50 mm x 5 mm is designed in Solidworks and three separate sets of samples are fabricated at three different machine preset fill densities using an extrusion based 3D printer LulzBot TAZ 5. The actual solid volume fraction of each set of samples is measured using a 3D X-ray computed tomography microscope. The printed materials appeared to exhibit anisotropy such that the thickness direction dielectric properties are different from the planar properties. The experimental resonant frequency for one fill-density is combined with ANSYS-HFSS simulation results to estimate the bulk dielectric constant of ABS and the equivalent dielectric properties in planar and thickness directions. The bulk dielectric properties are then used in HFSS models for other two fill densities and the simulated results appear to match reasonably well with experimental findings. The similar HFSS modeling scheme was adopted to understand the effect of material heterogeneity on RF response. In addition, a hybrid structure with dimensions of 50 mm x 50 mm x 20 mm is designed with the first 15 mm thickness being a cellular BCC structure and the other 5 mm being a solid cuboid. These samples are printed on an extrusion based 3D printer Stratasys uPrint using ABS. A patch antenna is embedded at the interface of the solid and the cellular structure. Both ABAQUS finite element modeling and experimental methods are used to understand the load-displacement and the energy absorption behavior of the hybrid structure under low velocity impact loadings. The hybrid structure is impacted on both sides to investigate the damage tolerance capabilities of embedded electronic components. Advisors/Committee Members: Mian, Ahsan (Advisor).

Subjects/Keywords: Aerospace Engineering; Automotive Engineering; Electrical Engineering; Mechanics; Mechanical Engineering; Plastics; Technology; Design; Additive Manufacturing; AM; 3D Printing; Acrylonitrile Butadiene Styrene; ABS; Microstrip Patch Antenna; Porous; ANSYS-HFSS; ABAQUS-Explicit Dynamics; Hybrid Structure; Lattice Structure; BCC; RF applications; Low Velocity Impact; Dielectric material

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

APA (6^th Edition):

Keerthi, S. (2017). Low Velocity Impact and RF Response of 3D Printed Heterogeneous Structures. (Masters Thesis). Wright State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=wright1514392165695378

Chicago Manual of Style (16^th Edition):

Keerthi, Sandeep. “Low Velocity Impact and RF Response of 3D Printed Heterogeneous Structures.” 2017. Masters Thesis, Wright State University. Accessed January 21, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=wright1514392165695378.

MLA Handbook (7^th Edition):

Keerthi, Sandeep. “Low Velocity Impact and RF Response of 3D Printed Heterogeneous Structures.” 2017. Web. 21 Jan 2021.

Vancouver:

Keerthi S. Low Velocity Impact and RF Response of 3D Printed Heterogeneous Structures. [Internet] [Masters thesis]. Wright State University; 2017. [cited 2021 Jan 21]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=wright1514392165695378.

Council of Science Editors:

Keerthi S. Low Velocity Impact and RF Response of 3D Printed Heterogeneous Structures. [Masters Thesis]. Wright State University; 2017. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=wright1514392165695378

20. Kocherginsky, Dmitry M. In-situ formation of SiC in Al-Si melt.

Degree: 1995, University of Nevada – Reno

URL: http://hdl.handle.net/11714/1432

► Al/Sic composite is identified as a potential material for automotive and electronic packaging applications. Conventional method of Al/Sic composite processing includes incorporation of SiC particles… (more)

Subjects/Keywords: Al composite; automotive packaging applications; electronic packaging applications; SiC composite; Al alloy; SiC particles; silica; carbon; SiC formation; Al composite processing; SiC composite processing; Mackay Science Project; silicon carbide – research; aluminum alloys

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

APA (6^th Edition):

Kocherginsky, D. M. (1995). In-situ formation of SiC in Al-Si melt. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/1432

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):

Kocherginsky, Dmitry M. “In-situ formation of SiC in Al-Si melt.” 1995. Thesis, University of Nevada – Reno. Accessed January 21, 2021. http://hdl.handle.net/11714/1432.

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

MLA Handbook (7^th Edition):

Kocherginsky, Dmitry M. “In-situ formation of SiC in Al-Si melt.” 1995. Web. 21 Jan 2021.

Vancouver:

Kocherginsky DM. In-situ formation of SiC in Al-Si melt. [Internet] [Thesis]. University of Nevada – Reno; 1995. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/11714/1432.

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

Council of Science Editors:

Kocherginsky DM. In-situ formation of SiC in Al-Si melt. [Thesis]. University of Nevada – Reno; 1995. Available from: http://hdl.handle.net/11714/1432

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

21. Abdollahifakhr, Hamon. AUTOMATIC DESIGN OF WIRING PATTERN FOR CAR SEAT HEATERS.

Degree: JTH. Research area Computer Supported Engineering Design, 2010, Jönköping UniversityJönköping University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-13968

► This projects aims to develop design automation in product development. Design automation causes increase in producibility and decrease in product cost and manufacturing lead… (more)

Subjects/Keywords: CATIA V5; Design Automation; Wiring Pattern; Kongsberg Automotive (KA); Seat Heater; ProceedoStudio; Producibility; Visual Basic Applications; Mechanical engineering; Maskinteknik; Other engineering mechanics; Övrig teknisk mekanik

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

APA (6^th Edition):

Abdollahifakhr, H. (2010). AUTOMATIC DESIGN OF WIRING PATTERN FOR CAR SEAT HEATERS. (Thesis). Jönköping UniversityJönköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-13968

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):

Abdollahifakhr, Hamon. “AUTOMATIC DESIGN OF WIRING PATTERN FOR CAR SEAT HEATERS.” 2010. Thesis, Jönköping UniversityJönköping University. Accessed January 21, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-13968.

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

MLA Handbook (7^th Edition):

Abdollahifakhr, Hamon. “AUTOMATIC DESIGN OF WIRING PATTERN FOR CAR SEAT HEATERS.” 2010. Web. 21 Jan 2021.

Vancouver:

Abdollahifakhr H. AUTOMATIC DESIGN OF WIRING PATTERN FOR CAR SEAT HEATERS. [Internet] [Thesis]. Jönköping UniversityJönköping University; 2010. [cited 2021 Jan 21]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-13968.

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

Council of Science Editors:

Abdollahifakhr H. AUTOMATIC DESIGN OF WIRING PATTERN FOR CAR SEAT HEATERS. [Thesis]. Jönköping UniversityJönköping University; 2010. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-13968

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

University of Waterloo

22. Guettler, Barbara Elisabeth. Effect of Thermal and Chemical Treatment of Soy Flour on Soy-Polypropylene Composite Properties.

Degree: 2012, University of Waterloo

URL: http://hdl.handle.net/10012/6702

► Soy flour (SF), a by-product of the soybean oil extraction processing, was investigated for its application in soy-polypropylene composites for interior automotive applications. The emphasis… (more)

▼ Soy flour (SF), a by-product of the soybean oil extraction processing, was investigated for its application in soy-polypropylene composites for interior automotive applications. The emphasis of this work was the understanding of this new type of filler material and the contribution of its major constituents to its thermal stability and impact properties. For this reason, reference materials were selected to represent the protein (soy protein isolate (SPI)) and carbohydrate (soy hulls (SH)) constituents of the soy flour. Additional materials were also investigated: the residue obtained after the protein removal from the soy flour which was called insoluble soy (IS), and the remaining liquid solution after acid precipitation of the proteins, containing mostly sugars and minerals, which was called soluble sugar extract (SSE). Two treatments, potassium permanganate and autoclave, were analyzed for their potential to modify the properties of the soy composite materials. An acid treatment with sulfuric acid conducted on soy flour was also considered. The soy materials were studied by thermogravimetric analysis (TGA) under isothermal (in air) and dynamic (in nitrogen) conditions. SPI had the highest thermal stability and SSE the lowest thermal stability for the early stage of the heating process. Those two materials had the highest amount of residual mass at the end of the dynamic TGA in nitrogen. The two treatments showed minimal effect on the isothermal thermal stability of the soy materials at 200 °C. A minor improvement was observed for the autoclave treated soy materials. Fourier transformed infrared (FTIR) spectroscopy indicated that the chemical surface composition differed according to type of the soy materials but no difference could be observed for the treatments within one type of soy material. Contact angle analysis and surface energy estimation indicated differences of the surface hydrophobicity of the soy materials according to type of material and treatment. The initial water contact angle ranged from 57 ° for SF to 85 ° for SH. The rate of water absorption increased dramatically after the autoclave treatment for IS and SPI. Both materials showed the highest increase in the polar surface energy fraction. In general, the major change of the surface energy was associated with change of the polar fraction. After KMnO4 treatment, the polar surface energy of SF, IS and SPI decreased while SH showed a slight increase after KMnO4 treatment. A relationship between protein content and polar surface energy was observed and seen to be more pronounced when high protein containing soy materials were treated with KMnO4 and autoclave. Based on the polar surface energy results, the most suitable soy materials for polypropylene compounding are SPI (KMnO4), SH, and IS (KMnO4) because their polar surface energy are the lowest which should make them more compatible with non-polar polymers such as polypropylene. The soy materials were compounded as 30 wt-% material loading with an injection moulding grade polypropylene blend…

Subjects/Keywords: Soy flour; Soy protein; Carbohydrates; Polypropylene; Coupling agent; Composites; Autoclave treatment; Chemical treatment; Automotive applications; Contact angle; Surface energy; Interfacial energy; Surface roughness; Hydrophilicity; Fourier Transform Infrared Spectroscopy (FTIR); Field Emission Scanning Electron Microscopy (FESEM); Energy Dispersive X-ray Spectroscopy (EDX); Thermogravimetric analysis (TGA); Crack propagation; Impact strength (toughness); Flexural modulus (stiffness)

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

APA (6^th Edition):

Guettler, B. E. (2012). Effect of Thermal and Chemical Treatment of Soy Flour on Soy-Polypropylene Composite Properties. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/6702

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):

Guettler, Barbara Elisabeth. “Effect of Thermal and Chemical Treatment of Soy Flour on Soy-Polypropylene Composite Properties.” 2012. Thesis, University of Waterloo. Accessed January 21, 2021. http://hdl.handle.net/10012/6702.

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

MLA Handbook (7^th Edition):

Guettler, Barbara Elisabeth. “Effect of Thermal and Chemical Treatment of Soy Flour on Soy-Polypropylene Composite Properties.” 2012. Web. 21 Jan 2021.

Vancouver:

Guettler BE. Effect of Thermal and Chemical Treatment of Soy Flour on Soy-Polypropylene Composite Properties. [Internet] [Thesis]. University of Waterloo; 2012. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10012/6702.

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

Council of Science Editors:

Guettler BE. Effect of Thermal and Chemical Treatment of Soy Flour on Soy-Polypropylene Composite Properties. [Thesis]. University of Waterloo; 2012. Available from: http://hdl.handle.net/10012/6702

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

23. Zhou, Xuan. Hydroxyapatite/Titanium Composite Coating for Biomedical Applications.

Degree: PhD, Automotive Systems Engineering, 2012, University of Michigan

URL: http://hdl.handle.net/2027.42/94569

► Hydroxyapatite, (HAP), a calcium phosphate bioceramic material, has been widely used in both dentistry and orthopaedics due to its biocompatibility and osteoconductivity. However, its poor… (more)

▼ Hydroxyapatite, (HAP), a calcium phosphate bioceramic material, has been widely used in both dentistry and orthopaedics due to its biocompatibility and osteoconductivity. However, its poor bulk mechanical properties have limited its use as load bearing material. An effective approach to solve this problem is to form a composite coating of HAP and Titanium, in which titanium will be the matrix and HAP will act as reinforcement. In this research, two novel approaches, namely cold gas dynamic spraying (CGDS) and argon atmosphere plasma spraying (AAPS), were applied to manufacture HAP/Ti composite coatings. The aim was to produce thick and dense deposits and investigate the mechanical, electrochemical and incubation behavior of such biocomposites as potential load bearing materials for biomedical applications. The complex nature of the manufacturing processes and the characteristics of these materials make this a challenging study in terms of coating manufacturing and property evaluation. For cold sprayed HAP/Ti composite coatings, it was found that the phase composition of the HAP in the deposits was identical to that of the precursor powder and the bond strength of the deposit was comparable/better to that of the plasma sprayed 100% HAP typically used in industry. A relatively higher corrosion current of HAP/Ti composite than that of pure Ti coating in simulated body fluid indicated a good bioactivity for composite coating, which was also verified by the formation of apatite layer on the surface of composite coating in in-vitro testing. The cold sprayed HAP/Ti composite is expected to be a promising load-bearing implant material for biomedical applications. For AAPS-deposited HAP/Ti composite coatings, results demonstrated that dense composite coatings with a typical morphology of HAP homogenously distributed in Ti matrix was obtained and the decomposition of HAP during plasma spraying process was avoided. The bond strength was significantly higher than that of 100% HAP or Ti reinforced cold sprayed HAP coatings and the frictional property was comparable to the Ti substrate. A relatively higher corrosion current of HAP/Ti composite than that of pure Ti coating indicated a good bioactivity, which was also verified by the formation of apatite layer in in-vitro testing. Therefore, AAPS deposited HAP/Ti composites are also potential material for load bearing implant materials. However, oxidation free HAP/Ti coatings could only be achieved under argon environment which makes the process expensive. In contrast, the cold spray technique does not require any protective environment; thus can be an inexpensive approach. Advisors/Committee Members: Mohanty, Pravansu (advisor), Mallick, Pankaj (committee member), Bandyopadhyay, Krisanu (committee member), Guduru, Ramesh (committee member).

Subjects/Keywords: Cold Spray; Plasma Spray; Hydroxyapatite/Ti Composite Coating; Electrochemical Corrosion Behavior Test; Biomedical Application; Electrochemical Impedance Spectroscopy (EIS); Biomedical Applications; Automotive Systems Engineering

…xv Abstract Hydroxyapatite/Titanium Composite Coating for Biomedical Applications by… …materials for biomedical applications. The complex nature of the manufacturing processes and the… …promising load-bearing implant material for biomedical applications. For AAPS-deposited HAP/Ti…

10 more images…

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

APA (6^th Edition):

Zhou, X. (2012). Hydroxyapatite/Titanium Composite Coating for Biomedical Applications. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/94569

Chicago Manual of Style (16^th Edition):

Zhou, Xuan. “Hydroxyapatite/Titanium Composite Coating for Biomedical Applications.” 2012. Doctoral Dissertation, University of Michigan. Accessed January 21, 2021. http://hdl.handle.net/2027.42/94569.

MLA Handbook (7^th Edition):

Zhou, Xuan. “Hydroxyapatite/Titanium Composite Coating for Biomedical Applications.” 2012. Web. 21 Jan 2021.

Vancouver:

Zhou X. Hydroxyapatite/Titanium Composite Coating for Biomedical Applications. [Internet] [Doctoral dissertation]. University of Michigan; 2012. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/2027.42/94569.

Council of Science Editors:

Zhou X. Hydroxyapatite/Titanium Composite Coating for Biomedical Applications. [Doctoral Dissertation]. University of Michigan; 2012. Available from: http://hdl.handle.net/2027.42/94569

Open Access Theses and Dissertations