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《汽车理论》课程教学课件(英文讲稿)第0章 绪论 Elementary Vehicle Dynamics

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《汽车理论》课程教学课件(英文讲稿)第0章 绪论 Elementary Vehicle Dynamics
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《Elementary Vehicle Dynamics 》(《汽车理论基础》)武汉理工大学汽车工程学院余晨光

《Elementary Vehicle Dynamics 》 (《汽车理论基础》) 武汉理工大学 汽车工程学院 余晨光 1

Preface前言What can we learn from this course?Learn what?Why What's the aim of this course?study?.How to learn?DevelopmentofAutomobile2Preface

Preface Preface 前言 • What can we learn from this course?—— Learn what? • What’s the aim of this course?——Why study? • How to learn? • Development of Automobile 2

Preface前言What can we learn from this course?Thesixfundamentalperformancesofvehicle汽车的六项基本性能)AccelerationPerformance(动力性)DynamicPerformanceDecisions for EnginePowerandGearRatios(动力装置参数的选定)FuelEconomy(燃油经济性)BrakingPerformance(制动性)HandlingPerformance(操纵稳定性)一Connering&RolloverRidePerformance(行驶平顺性)PassingAbility(通过性)3Preface

Preface Preface 前言 What can we learn from this course? The six fundamental performances of vehicle(汽车的六项基本性能) Acceleration Performance (动力性)— Dynamic Performance Fuel Economy(燃油经济性) Braking Performance(制动性) Handling Performance(操纵稳定性)—Connering&Rollover Ride Performance(行驶平顺性) Passing Ability(通过性) Decisions for Engine Power and Gear Ratios(动力装置参数的选定) 3

VehicleAxisSystem车辆坐标系の,横摆角速度(yaw)Z侧倾角速度(roll)0.1Ww垂直速度(vertical)u前进速度(forward)の。俯仰角速度(pitch)u侧向速度(side)u00X00Preface

Preface x y z  u w q  p r (roll) (forward) p u  侧倾角速度 前进速度 (pitch) (side) q  俯仰角速度 侧向速度 (yaw) (vertical) r w  横摆角速度 垂直速度 Vehicle Axis System车辆坐标系 o 4

What's the aim of this course?Through finding the relationship betweenthe vehicle structure parameters andperformance, we can find out the rightmethods and means to design the car anduse vehicle.(通过车辆结构参数与性能之间的关系找到正确设计汽车的方法和合理使用汽车的途径。)5Preface

Preface What’s the aim of this course? • Through finding the relationship between the vehicle structure parameters and performance, we can find out the right methods and means to design the car and use vehicle. • (通过车辆结构参数与性能之间的关系, 找到正确设计汽车的方法和合理使用汽 车的途径。) 5

ClueDeterminetheEvaluationIndexEvaluationIndex评价指标确定评价指标理论联系实际connectionbetweentheoryAnalysis of Influence Factorand practice分析影响因素Preface

Preface Clue Evaluation Index 评价指标 Determine the Evaluation Index 确定评价指标 Analysis of Influence Factor 分析影响因素 理论联系实际 connection between theory and practice 6

DevelopmentofAutomobile1886,Daimler(inventcarburetor)&Benz(inventtwo-stroke engine).In30~40'softhe20thcentury——AccelerationPerformanceIn60~70'softhe20thcentury-FuelEconomy(BecauseofPetroleumCrisis)前者发明了化油器,后1886,Daimler&Benz,者发明了二冲程发动机。,第一、二次世界大战,以动力性,可驾驶性为主。20世纪60-70年代,石油危机,开始重视经济性。Preface

Preface Development of Automobile • 1886,Daimler (invent carburetor) & Benz ( invent two-stroke engine). • In 30~40’s of the 20th century—— Acceleration Performance • In 60~70’s of the 20th century—— Fuel Economy (Because of Petroleum Crisis ) • 1886,Daimler & Benz,前者发明了化油器,后 者发明了二冲程发动机。 • 第一、二次世界大战,以动力性,可驾驶性为主。 • 20世纪60-70年代,石油危机,开始重视经济性。 7

Developmentof Automobile.In80~90'softhe20thcenturyHandlingPerformance, Ride Performance(Because ofdevelopment of the electronic technology)Economize resources,Environmentalprotection、 SafetyForever Subject ofDevelopment for Automobile Industry,20世纪80-90年代,计算机技术发展,开始十分重视操纵稳定性,行驶平顺性·节能、环保、安全是汽车工业发展的永恒主题8Preface

Preface Development of Automobile • In 80~90’s of the 20th century——Handling Performance、Ride Performance (Because of development of the electronic technology ) • Economize resources、Environmental protection、Safety——Forever Subject of Development for Automobile Industry • 20世纪80-90年代,计算机技术发展,开始十 分重视操纵稳定性,行驶平顺性。 • 节能、环保、安全是汽车工业发展的永恒主题。 8

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