汽车工程学

Preface

Foreword

1 Vertical Dynamics（Suspension）

1.1 Suspension—Demands and Possibilities

0fImplementation

Notes

1.2 The Road as the Source of Excitation

1.2.1 Spectral density of the road

Unevenness

1.2.2 Data acquisition for road

Unevenness

Notes

1.3 Components of the total Suspension

System

1.3.1 Tires

1.3.2 Body springs

1.3.3 Vibration dampers

1.3.4 Seats

1.3.5 Evaluation of oscillations by

humans

Notes

1.4 Single Wheel Suspension Model

1.4.1 Single mass model

1.4.2 Dual—mass equivalent system

1.4.3 Enhancement of the model by seat

suspension

Notes

1.5 SingleTrack Suspension Model

1.5.1 Doubleaxle vehicle with bending

resistant structure

1.5.2 Two axle vehicle with additional

degrees of~eedom

Notes

1.6 Two—Track Suspension Model

1.6.1 Roll springing

1.6.2 Distortion of the structure

（twisting）

1.6.3 Rigid axle tramp

Notes，

1.7 Suspension Investigation Methods

1.7.1 Calculating model

1.7.2 Excitation on the hydraulic pulse

test rig

1.7.3 Driving tests

2 Lateral Dynamics r Driving

Stability、

2.1 Demands on Vehiele Behavior

Notes

2.2 Tires

2.2.1 Demands on tires

2.2.2 Tire design

2.2.3 Force transmission in circumferential

direction

2.2.4 Force transmission in lateral

direction

2.2.5 Superposition of lateral forces and

circumferential forces

2.2.6 Transient tire behavior

Notes

2.3 Single Track Vehicle Model

2.3.1 Steady state circular course

driving

2.3.2 Transient behavior

2.3.3 Vehicle as a control loop

element

Notes

2.4 Four—Wheel Vehicle Model

2.4.1 Model formulation

2.4.2 Test procedures and assessment

criteria for vehicle handling

2.4.3 Parametric study ON steering

behavior（automobile）

2.4.4 Influence of processes of

longitudinal dynamics on transverse

dynamics

Notes

2.5 Steering

2.5.1 Specifications of steering

systems

2.5.2 Characteristic values of the front

wheel adjustment

2.5.3 Steering kinematics

2.5.4 Steering angle—steering torque

diagram

2.5.5 Steering elasticity

2.5.6 Components of the steering

system

2.6 Wheel Suspensions

2.6.1 Basic concepts of wheel

suspension

2.6.2 Kinematics of wheel suspensions

2.6.3 E1astokinematics

2.6.4 Requirements to be met by wheel

suspension

2.6.5 Rigid axles

2.6.6 Semirigid axles

2.6.7 Independent suspension

2.7 Literature0

Resume of ProfHenning Wallentowitz

《汽车工程学2汽车垂向和侧向动力学(英文版)》分为汽车垂向动力学和侧向动力学两部分。垂向动力学内容包括悬架特性分析、各种不同的悬架结构及其力学特性分析、单轮悬架模型、单体悬架模型和双体悬架模型。该部分从汽车垂向动力学概念出发，首先分析了悬架对车辆及驾驶员的影响，针对这些影响详细介绍了悬架各个组成构件，并从理论上讨论了这些机械结构的设计思想和工作原理；仔细介绍了单轮模型、单体模型等用于分析评估垂向动力学特性的经典模型。不仅如此，本部分还针对当前汽车垂向动力学领域研究的前沿课题进行了初步探讨。侧向动力学内容包括汽车侧向运动稳定性概念、轮胎静态干u动态特性分析、线性二自由度汽车模型及其动力学特性、四轮汽车模型及其动力学特性分析、转向系及其对汽车侧向动力学特性的影响、悬架系统动力学特性及其对侧向动力学特性的影响以及各种不同的悬架结构介绍等。该部分从侧向动力学的概念、分析方法和影响因素出发，对汽车侧向动力学进行了全面的描述。其内容丰富，不仅对线性二自由度汽车模型、简化悬架系统模型等经典的用于分析汽车侧向动力学特性的内容进行了详细介绍，还对现代汽车侧向动力学的前沿课题进行了’初步探讨。《汽车工程学2汽车垂向和侧向动力学(英文版)》除了可用于高等学校车辆工程专业的双语教学外，还可作为汽车工程师的参考书。【作者简介】作者：(德国)亨宁瓦伦托维兹(Henning Wallentowitz) 编者：李克强