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Vehicle dynamics has evolved into an increasingly indispensible discipline to supplement the design of automobiles, especially racecars. Every single component of the car and the environment with which it interacts contributes to the overall dynamic behavior of the vehicle. For Formula Society of Automotive Engineers (FSAE) cars in particular, these parameters become extremely critical and hence require robust and accurate physical testing methods, which are expensive and time consuming, warranting the need for virtual testing methods. The Bearcat Motorsports team (BCMS) lacked this capability of predicting vehicle dynamic behavior, relying on previously available test data and the performance of the car after fabrication. Hence, a thorough multi-body dynamics model has been developed to overcome this inadequacy. The 2013 race car is used for this study and ADAMS/Car is used as a multi-body development platform. ADAMS/Car multi-body model consists of different automotive subassemblies modeled as independent subsystems, which can interact amongst themselves to mimic the overall dynamics of a physical car model. Each subsystem requires data pertaining to its characteristics such as mass, inertia, center of gravity, which can be tuned to calibrate and eventually validate the model against data obtained from physical testing. This makes it imperative to bring together the work done by all sub-system teams over the course of the year. For simulation of road-tire interface, the PAC2002 tire model [2] is used, which is the latest Pacejka Tire Model. A new ADAMS template is made for the anti-roll bars and the strut structure. The model can predict full vehicle dynamic behavior apart from generating sub-system specific vehicle dynamic parameters. The validation of a full vehicle model is a multi-year project and is not within the scope of this thesis. However, the initial dynamic model is now able to help the team predict vehicle dynamic trends and evolve their designs based on previous design ideologies. The future work for this project will include further calibration and validation of the model and then running the simulation model on a complete virtual endurance track.
This textbook covers handling and performance of both road and race cars. Mathematical models of vehicles are developed always paying attention to state the relevant assumptions and to provide explanations for each step. This innovative approach provides a deep, yet simple, analysis of the dynamics of vehicles. The reader will soon achieve a clear understanding of the subject, which will be of great help both in dealing with the challenges of designing and testing new vehicles and in tackling new research topics. The book deals with several relevant topics in vehicle dynamics that are not discussed elsewhere and this new edition includes thoroughly revised chapters, with new developments, and many worked exercises. Praise for the previous edition: Great book! It has changed drastically our approach on many topics. We are now using part of its theory on a daily basis to constantly improve ride and handling performances. --- Antonino Pizzuto, Head of Chassis Development Group at Hyundai Motor Europe Technical Center Astonishingly good! Everything is described in a very compelling and complete way. Some parts use a different approach than other books. --- Andrea Quintarelli, Automotive Engineer
Build a roadworthy two-seater open sports car for a fraction of the cost of a kit car! Using standard tools, basic skills and low-cost materials, this volume shows you how to make the chassis, suspension and bodywork, and advises you on how to modify and use inexpensive but serviceable mechanical components. Contains sections on improving handling, information on how to get through the Single Vehicle Approval test, and builders' own stories.
In most forms of racing, cornering speed is the key to winning. On the street, precise and predictable handling is the key to high performance driving. However, the art and science of engineering a chassis can be difficult to comprehend, let alone apply. Chassis Engineering explains the complex principles of suspension geometry and chassis design in terms the novice can easily understand and apply to any project. Hundreds of photos and illustrations illustrate what it takes to design, build, and tune the ultimate chassis for maximum cornering power on and off the track.
This book gathers the proceedings of the 6th International Conference and Exhibition on Sustainable Energy and Advanced Materials (ICE-SEAM 2019), held on 16–17 October 2019 in Surakarta, Indonesia. It focuses on two relatively broad areas – advanced materials and sustainable energy – and a diverse range of subtopics: Advanced Materials and Related Technologies: Liquid Crystals, Semiconductors, Superconductors, Optics, Lasers, Sensors, Mesoporous Materials, Nanomaterials, Smart Ferrous Materials, Amorphous Materials, Crystalline Materials, Biomaterials, Metamaterials, Composites, Polymers, Design, Analysis, Development, Manufacturing, Processing and Testing for Advanced Materials. Sustainable Energy and Related Technologies: Energy Management, Storage, Conservation, Industrial Energy Efficiency, Energy-Efficient Buildings, Energy-Efficient Traffic Systems, Energy Distribution, Energy Modeling, Hybrid and Integrated Energy Systems, Fossil Energy, Nuclear Energy, Bioenergy, Biogas, Biomass Geothermal Power, Non-Fossil Energies, Wind Energy, Hydropower, Solar Photovoltaic, Fuel Cells, Electrification, and Electrical Power Systems and Controls.
In 2006, a small unavailing university auto racing team began building a racecar that would challenge the best engineering schools in the world. With fewer people and resources than any of the top competitors, the only way they were going to win was to push the limit, go for broke, and hope for more than a little luck. By the time they got to the racetrack, they knew: In the fog of fierce competition, whether you win or lose, you learn the hardest lessons about engineering, teamwork, friendship, and yourself.
Written for students and practicing engineers working in automotive engineering, this book provides a fundamental yet comprehensive understanding of chassis systems and requires little prior knowledge on the part of the reader. It presents the material in a practical and realistic manner, using reverse engineering as a basis for examples to reinforce understanding of the topics. The specifications and characteristics of vehicles currently on the market are used to exemplify the theory’s application, and care is taken to connect the various topics covered, so as to clearly demonstrate their interrelationships. The book opens with a chapter on basic vehicle mechanics, which include the forces acting on a vehicle in motion, assuming a rigid body. It then proceeds to a chapter on steering systems, which provides readers with a firm understanding of the principles and forces involved under static and dynamic loading. The next chapter focuses on vehicle dynamics by considering suspension systems—tyres, linkages, springs, dampers etc. The chapter on chassis structures and materials includes analysis tools (typically, finite element analysis) and design features that are used to reduce mass and increase occupant safety in modern vehicles. The final chapter on Noise, Vibration and Harshness (NVH) includes a basic overview of acoustic and vibration theory and makes use of extensive research investigations and practical experience as a means of addressing NVH issues. In all subject areas the authors take into account the latest trends, anticipating the move towards electric vehicles, on-board diagnostic monitoring, active systems and performance optimisation. The book features a number of worked examples and case studies based on recent research projects. All students, including those on Master’s level degree courses in Automotive Engineering, and professionals in industry who want to gain a better understanding of vehicle chassis engineering, will benefit from this book.
Automotive Steels: Design, Metallurgy, Processing and Applications explores the design, processing, metallurgy, and applications of automotive steels. While some sheet steels are produced routinely in high volume today, there have been significant advances in the use of steel in the automotive industry. This book presents these metallurgical and application aspects in a way that is not available in the current literature. The editors have assembled an international team of experts who discuss recent developments and future prospects for automotive steels, compiling essential reading for both academic and industrial metallurgists, automotive design engineers, and postgraduate students attending courses on the metallurgy of automotive materials. - Presents recent developments on the design, metallurgy, processing, and applications of automotive steels - Discusses automotive steels that are currently in the early stages of research, such as low-density and high modulus steels that are driving future development - Covers traditional steels, advanced high strength steels, elevated Mn steels and ferrous composite materials