Handbook of Automotive Design Analysis examines promising approaches to automotive design analysis. The discussions are organized based on the major “technological divisions” of motor vehicles: the transmission gearbox and drive line; steering and suspension; and the automobile structure. This handbook is comprised of three chapters; the first of which deals with transmission gearboxes and drive lines. This chapter describes manual-shift gearbox design, synchromesh mechanisms, hydrokinetic automatic gearboxes, drive-line main assemblies, and drive-line losses. The next chapter is about vehicle suspensions and optimum handling performance, with emphasis on two categories of handling of vehicles: steady-state turning (or cornering) and the transient state. The behavior of the steering system, ride parameters, and the design and installation of spring elements are discussed. The third and final chapter focuses on the application of structural design analysis to the automotive structure. After explaining the fundamentals of structural theory in car body design, this book presents the analysis of commercial vehicle body and chassis. Throughout the book, maximum use is made of line-drawings and concise textural presentation to provide the working designer with an easy assimilable account of automotive design analysis. This book will be useful to young automotive engineers and newcomers in automotive design.
Table of contentsChapter One Transmission Gearboxes and Drive Live
Acknowledgment to Sponsor and Introduction
A. Manual-Shift Gearbox Design
(Speed Ratio Optimization, Configurational Constraints, Load Capacity of Gear Teeth, Bearing Load Calculation)
B. Synchro Mesh Mechanisms
(Categories, Torque Calculation, Heat-Rating, Failure Modes)
C. Hydrokinetic Automatic Gearboxes
(Fluid-Coupling/Torque-Converter Comparison, Performance Evaluation and Blade Design, Converter and Gearbox in Combination/Epicyclic Gear-Train Analysis)
D. Drive-Line Main Assemblies
Section One: Diaphragm-Spring Clutch Design
Section Two: Clutch Engagement Characteristics
Section Three: Design Calculations for Drive Axles
Section Four: Final Drive Analysis
Section Five: Final Drive Bearings
E. Drive-Line Losses: Drag and Vibration
Section One: Tire Rolling Resistance
Section Two : Drive-Line Vibration
Section Three: Brake design
Section Four: Road Wheel Design
Chapter Two Vehicle Suspensions: Handling and Ride
Acknowledgment to Sponsor and Introduction
A. Steady-State Turns
Section One: Analytical Methods for Steady-State Handling
Section Two: Case Study: Analysis of a Current Production Car
B. The Transient Stage in Handling
Section One: The Traditional Approach
Section Two: Present-Day Analysis of Vehicle Transient Responses
Section Three: Suspension Geometry and Vehicle Handling
C. Behavior of the Steering System
Section One: Forces in Steering Linkages
Section Two: Steering Oscillations
D. Ride Parameters
Section One: Ergonomic Distinction Between Ride and Handling
Section Two: The Traditional Approach and Ride Fundamentals
Section Three: Recent Refinements in Evaluating Ride Parameters
Appendix 1: Determining Ride Parameters by a Vector Method
Appendix 2: Chassis-Frame Beaming Vibration
Section Four: Ride Evaluation in the Design Office
E. Spring-Element Design and Installation
Section One: Laminated Suspension Springs
Section Two: Use of Rubber as a Suspension Medium
Section Three: Air Springing
Section Four: Oleo-Pneumatics
Chapter Three the Automotive Structure
Acknowledgment to Sponsor
Introduction: The Economic Case for Light Alloy Construction and Consideration of Sandwich Construction
A. Fundamentals of Structural Theory in Car Body Design
Section One: Virtual Work-The Unit Load Theorem Applied to Pin-Jointed Frames and Continuum Structures
Section Two: Bending Theory—Equation of Flexure, Moment Distribution, Instability and Plastic Collapse
Section Three: Structural Idealization-Simplification of Complete Body Shells for Analysis and Shear Flow Distribution in Box Beams
Section Four: Recent Trends Analysis in Car Body
Section Five: Computerized Body Design
Section Six: Matrix Methods for Structural Vibration Analysis
B. Commercial Vehicle Body and Chassis Analysis
Section One: Analysis of Chassis Torsional Stiffness
Section Two: The Van Body as an Idealized Box Beam
Section Three: The Argyris Force Method of Structural Analysis Explained
Section Four: Idealization of the Structure of a Semi-Trailer Van
Section Five: Solution by Digital Computer of a Semi-Trailer Box-Van Analysis
Appendix: Determining Degree of Structural Redundancy
