汽车和乘员碰撞响应与汽车结构特征的关系的统计分析.doc

论文：汽车和乘员碰撞响应与汽车结构特征的关系的统计分析

【中文摘要】通常来说,不同国家的汽车制造商使用不同的设计准则,由此产生的不同的汽车结构设计,但这些车型的碰撞性能和安全等级往往差别不大。对于不同的车型,制造商采用不同的结构设计、车身材料和连接方式,旨在满足不同市场中不同品味消费者的需求。同时,许多设计又会反映制造商的传统、文化和设计理念。它们的共性和个性值得研究。经过多年的技术发展,如今的大多数被测车型表现出很好的乘员保护性能,而不同车型之间的结构设计却有明显的差别。本论文的目标是利用NHTSA的碰撞试验数据库从统计的角度分析试验中汽车碰撞波形、车辆结构特性与乘员碰撞响应之间的相关性。论文从数据库中选择了足够数量的试验,研究正面全宽碰撞试验的碰撞波形,从而评价多种类型车辆的特点并揭示汽车和乘员碰撞响应与汽车特征(如车重、车长、刚度、品牌等)之间的关系。
【英文摘要】It is often said that there are specific design guidelines in different countries and for different manufacturers, which lead to different structural designs and largely similar level of crash performance and safety ratings. Manufacturers adopt different structural designs, body mate-rials and joining methods for different vehicle models, aimed at meeting different tastes of customers in different markets. Many designs also reflect manufacturers’traditions, cultures, and design philosophies. Their commonnes...
【关键词】
【英文关键词】
【索购全文】联系Q1：138113721 Q2：139938848

【目录】汽车和乘员碰撞响应与汽车结构特征的关系的统计分析

Abstract

3

中文摘要

3

1 Introduction

6-7

2 Background

7-15

2.1 Development of Automotive Safety

7-8

2.2 Classification of Automotive Safety

8-9

2.3 Crash Tests

9-10

2.4 Legal Crash Test Regulations

10-13

2.4.1 US Regulations

10-11

2.4.2 European Regulations

11-12

2.4.3 Other Regulations

12-13

2.5 Rating Programmes

13-15

2.5.1 US NCAP

13

2.5.2 Euro NCAP

13-14

2.5.3 Others

14-15

3 Technical Approach

15-27

3.1 NHTSA Database

15-16

3.2 Analysis Platform

16-17

3.3 Assumptions

17-21

3.3.1 Vehicle Categories and Vehicle Speed

17

3.3.2 Filter

17-19

3.3.3 Acceleration mounting position

19-21

3.4 Structural Parameters

21-23

3.4.1 Maximum Vehicle Acceleration

21

3.4.2 Maximum Vehicle Displacement

21

3.4.3 Average Vehicle Stiffness

21-22

3.4.4 Relative Displacement

22

3.4.5 Crash Pulse Efficiency

22-23

3.5 Injury Parameters

23-25

3.5.1 Head Injury Criterion

23-24

3.5.2 Chest Injury Criterion

24

3.5.3 Femur Load

24-25

3.6 Statistical Measures

25-27

3.6.1 Mean Value

25

3.6.2 Standard Deviation

25

3.6.3 Correlation Coefficient

25-27

4 Results

27-55

4.1 Classifications

27-29

4.1.1 Vehicle Manufacturer and Country Groups

27

4.1.2 Vehicle Mass

27-28

4.1.3 Vehicle Length

28-29

4.2 Basic results

29-32

4.2.1 Vehicle Mass

29-30

4.2.2 Vehicle Length

30-32

4.3 Vehicle and Occupant Response Parameter

32-40

4.3.1 Maximum Vehicle Acceleration

32-33

4.3.2 Vehicle Average Stiffness

33-36

4.3.3 Vehicle Maximum Displacement

36

4.3.4 Relative Vehicle Displacement

36-38

4.3.5 Crash Pulse Efficiency

38-40

4.4 Injury Parameter Analysis

40-50

4.4.1 Head Injury Criterion

40-43

4.4.2 Chest Peak Acceleration

43-45

4.4.3 Femur Load

45-50

4.5 Case study

50-55

5 Conclusions

55-56

6 Acknowledgements

56-57

7 Formula symbols and indices

57-58

8 Literature

58-60

9 Appendix

60