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The suspension system of a FSAE (Formula Society of Automotive Engineers) vehicle is a vital system with many functions that include providing vertical compliance so the wheels can follow the uneven road, maintaining the wheels in the proper steer and camber attitudes to the road surface and reacting to the control forces produced by the tires (acceleration, braking and cornering). The members that comprise the suspension are subjected to a variety of dynamic loading conditions – it is imperative that they are designed properly to ensure the safety and performance of the vehicle. The goal of this research is to develop a model for predicting the reaction forces in the suspension members based on the expected load scenarios the vehicle will undergo. This model is compared to the current FSAE vehicle system and the design process is explained. The limitations of this model are explored and future methodologies and improvement techniques are discussed.
Hand-selected by racing engineer legend Carroll Smith, the 28 SAE Technical Papers in this book focus on the chassis and suspension design of pure racing cars, an area that has traditionally been - farmed out - to independent designers or firms since the early 1970s. Smith believed that any discussion of vehicle dynamics must begin with a basic understanding of the pneumatic tire, the focus of the first chapter. The racing tire connects the racing car to the track surface by only the footprints of its four tires. Through the tires, the driver receives most of the sensory information needed to maintain or regain control of the race car at high force levels. The second chapter, focusing on suspension design, is an introduction to this complex and fascinating subject. Topics covered include chassis stiffness and flexibility, suspension tuning on the cornering of a Winston Cup race car, suspension kinematics, and vehicle dynamics of road racing cars. Chapter 3 addresses the design of the racing chassis design and how aerodynamics affect the chassis, and the final chapter on materials brings out the fact that the modern racing car utilizes carbon construction to the maximum extent allowed by regulations. These technical papers, written between 1971 and 2003, offer what Smith believed to be the best and most practical nuggets of racing chassis and suspension design information.
The 2002 SAE Motorsports Engineering Conference centers on the theme of 'Racing into the 21st Century' . The conference proceedings include contributions from GM Racing, Daimler Chrysler Corp., Ford Motor Co., Auto Research Center - Indy, Delphi Automotive, Toyota Racing Development, Lawrence Technological University, Hallum Racing, Cornell University, Air Force Research Laboratory, and Metz Engineering & Racing. This set includes papers from the following sessions: Chassis, Tires and Wheels; Safety; Vehicle Dynamics; Advances in Engine Manufacturing Science; Engine Research and Analysis; Engine & Transmission; Aerodynamics; Design Process.Contents: Effectively Approaching and Designing a Suspension with Active Damping; Sports Prototype Race Car Optimization; Motorsport Valley and the Global Motorsport Industry: The Development and Growth of the British Performance Engineering Cluster; Multi-Aspect Solutions for Testing Race-Car Models; The Air Flow about an Exposed Racing Wheel; Performance Automotive Applications of Pressure-Sensitive Paint in the Langley Full Scale Tunnel; An Angle of Attack Correction Scheme for the Design of Low Aspect Ratio Wings with Endplates; On the Near Wake of Rotating, 40 per cent-Scale Champ Car Wheels; The Effects of Wing Aerodynamics on Race Vehicle Performance; Improvements to Maximize Power in a Restricted 2002 Formula SAE Base Engine; Racing Applications and Validations of a Hard Carbon Thin Film Coating; The Reduction of Parasitic Friction in Automotive Gearbox and Drive Train Components by the Isotropic Superfinish; Advanced Ceramics in Formula 1 Wheel, Clutch and Gearbox Rolling Bearings; Summary of Results of Development and Validation of Hot Honing System to Provide Improved Engine Performance; Design, Analysis and Testing of a Formula SAE Car Chassis; Development of the Swift 014.aRacecar for the CART Toyota Atlantic Championship Series; Dynamic Traction Characteristics of Tires; Use of Instrumented Earplugs to Measure Driver Head Accelerations; Sled Test Evaluation of Racecar Head/Neck Restraints; Mathematical Modeling of Crash-Induced Dynamic Loads on Race Car Drivers; The Use of Dashpots in the Prevention of Basilar Skull Fractures; Track Simulation and Vehicle Characterization with 7 Post Testing; Design of Formula SAE Suspension Components; Testing a Formula SAE Racecar on a Seven-Poster Vehicle Dynamics Simulator; Design of Formula SAE Suspension; Aerodynamic Effects on Indy Car Components; Lateral Aerodynamics of a Generic Sprint Car Configuration; Use of Designed Experiments in Wind Tunnel Testing of Performance Automobiles; Parametric Design of FIA F1 Engines; Exhaust System Design for a Four Cylinder Engine; Parametric Design of FIM WGP Engines; Prediction of Formula 1 Engine and Airbox Performance Using Coupled Virtual 4-Stroke and CFD Simulations; The Effect of Nanoparticle Additions on the Heat Capacity of Common Coolants; Comparison Between Formula 1 and CART Engine Performance Based on Acoustic Emission Analysis; A Liftless Electronic 100ms Shift System for Motorcycle-Engined Racecars; Driver Restraint Systems: Assuring a Rational Level of Driver Safety; ATD Neck Tension Comparisons for Various Sled Pulses; Advances in Fire Protection for Critical Vehicle Components; Design & Analysis of Composite Impact Structures for Formula 1 Using Explicit FEA Techniques; Strategies to Evaluate Power Output in Racing Engines.Case Study: 2002 World Offshore Class 1 Regulations; Formula 1 Engine Evolution Analysis Using the Engine Acoustic Emission; Acquisition and Analysis of Aerodynamic Loads on Formula 3 Racing Car Wings Using Dynamometric Load Cells; The Impact of Non-Linear Aerodynamics on Racecar Behavior and Lap Time Simulation; Aerodynamic Test and Development of the Corvette C5 for Showroom Stock Racing; Experimental & Computational Simulations Utilized During the Aerodynamic Development of the Dodge Intrepid R/T Race Car; Wake Studies of a Model Passenger Car Using PIV; GPS Es
This book presents the select proceedings of the second International Conference on Recent Advances in Mechanical Engineering (RAME 2020). The topics covered include aerodynamics and fluid mechanics, automation, automotive engineering, composites, ceramics and polymers processing, computational mechanics, failure and fracture mechanics, friction, tribology and surface engineering, heating and ventilation, air conditioning system, industrial engineering, IC engines, turbomachinery and alternative fuels, machinability and formability of materials, mechanisms and machines, metrology and computer-aided inspection, micro- and nano-mechanics, modelling, simulation and optimization, product design and development, rapid manufacturing technologies and prototyping, solid mechanics and structural mechanics, thermodynamics and heat transfer, traditional and non-traditional machining processes, vibration and acoustics. The book also discusses various energy-efficient renewable and non-renewable resources and technologies, strategies and technologies for sustainable development and energy & environmental interaction. The book is a valuable reference for beginners, researchers, and professionals interested in sustainable construction and allied fields.
Through appendices and diagrams, Car Suspension and Handling, 4th Edition outlines the purpose and history of vehicle suspension systems, while defining the basic parameters of suspension geometry. In addition, the book delves into human sensitivity to vibration, and offers data on durability, tire background information, steering calculations and suspension calculations.
This set includes Race Car Vehicle Dynamics, and Race Car Vehicle Dynamics - Problems, Answers and Experiments. Written for the engineer as well as the race car enthusiast, Race Car Vehicle Dynamics includes much information that is not available in any other vehicle dynamics text. Truly comprehensive in its coverage of the fundamental concepts of vehicle dynamics and their application in a racing environment, this book has become the definitive reference on this topic. Although the primary focus is on the race car, the engineering fundamentals detailed are also applicable to passenger car design and engineering. Authors Bill and Doug Milliken have developed many of the original vehicle dynamics theories and principles covered in this book, including the Moment Method, "g-g" Diagram, pair analysis, lap time simulation, and tyre data normalization. The book also includes contributions from other experts in the field. Chapters cover: *The Problem Imposed by Racing *Tire Behavior *Aerodynamic Fundamentals *Vehicle Axis Systems and more. Written for the engineer as well as the race car enthusiast and students, the companion workbook to the original classic book, Race Car Vehicle Dynamics, includes: *Detailed worked solutions to all of the problems *Problems for every chapter in Race Car Vehicle Dynamics, including many new problems *The Race Car Vehicle Dynamics Program Suite (for Windows) with accompanying exercises *Experiments to try with your own vehicle *Educational appendix with additional references and course outlines *Over 90 figures and graphs This workbook is widely used as a college textbook and has been an SAE International best seller since it's introduction in 1995.
Based on the principles of engineering science, physics and mathematics, but assuming only an elementary understanding of these, this textbook masterfully explains the theory and practice of the subject. Bringing together key topics, including the chassis frame, suspension, steering, tyres, brakes, transmission, lubrication and fuel systems, this is the first text to cover all the essential elements of race car design in one student-friendly textbook. It avoids the pitfalls of being either too theoretical and mathematical, or else resorting to approximations without explanation of the underlying theory. Where relevant, emphasis is placed on the important role that computer tools play in the modern design process. This book is intended for motorsport engineering students and is the best possible resource for those involved in Formula Student/FSAE. It is also a valuable guide for practising car designers and constructors, and enthusiasts.