Car-body Design Based on Regional Sensitivity Analysis and Space-multi-layer Topography

China Mechanical Engineering ›› 2015, Vol. 26 ›› Issue (19): 2687-2692.

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Car-body Design Based on Regional Sensitivity Analysis and Space-multi-layer Topography

Hu Zhaohui1;Yu Wanyuan1;Chen Shaowei1;Zeng Tuwei1;Li Guangyao1;Yuan Zhijun2

1.State Key Laboratory of Advanced Design and Manufacture for Vehicle Body，Hunan University，Changsha，410082
2.SAIC GM Wuling Automobile Limited by Share Ltd，Liuzhou，Guangxi，545007

Online:2015-10-10 Published:2015-10-10
Supported by:
Hunan Provincial Natural Science Foundation of China（No. 13JJB003）

基于区域灵敏度及空间多层形貌的车身设计

胡朝辉1;于万元1;陈少伟1;曾土伟1;李光耀1;袁智军2

1.湖南大学汽车车身先进设计制造国家重点试验室，长沙，410082
2.上汽通用五菱汽车股份有限公司，柳州，545007

基金资助:
湖南省自然科学基金资助项目（13JJB003）；湖南省科技开发计划资助项目（2013TT1006）；长沙市科技开发计划资助项目（K1203068-11）

Abstract

Abstract:

This paper put forward the method of regional sensitivity analysis, by setting thickness-variables of the key regions as variables instead of single component thickness. And the paper also put forward the optimization technique of the space-multi-layer topography that was based on the reconstruction of the optimization space and the screening mechanism of sensitivity, which validly solved the optimizations problem of reinforcing plate to bulge from two normal sides of the plate. The two methods were applied to the lightweight of body in white(BIW) at the same time. The example indicates that the analysis method can analyze and solve the problem of regional sensitivity analysis successfully, and greatly shortenes vehicle's development period.

Key words: lightweight design, regional sensitivity analysis, space-multi-layer topography, car-body design

摘要：

提出了区域灵敏度分析方法，并通过设定关键区域的区域厚度变量，将灵敏度分析对象由单个零件的厚度变成关键区域的区域厚度变量。提出了基于优化空间重组及灵敏度筛选机制的空间多层形貌优化技术，对零件沿法向正反两个方向进行了结构形貌优化，并将两种方法应用到某车身轻量化设计中。应用实例表明，该方法可以成功地实现关键区域的灵敏度分析，并能大大缩短车辆开发时间优化。

关键词: 轻量化设计, 区域灵敏度分析, 多层空间形貌优化, 车身设计

CLC Number:

U462.34

Hu Zhaohui, Yu Wanyuan, Chen Shaowei, Zeng Tuwei, Li Guangyao, Yuan Zhijun. Car-body Design Based on Regional Sensitivity Analysis and Space-multi-layer Topography[J]. China Mechanical Engineering, 2015, 26(19): 2687-2692.

胡朝辉, 于万元, 陈少伟, 曾土伟, 李光耀, 袁智军. 基于区域灵敏度及空间多层形貌的车身设计[J]. 中国机械工程, 2015, 26(19): 2687-2692.

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Car-body Design Based on Regional Sensitivity Analysis and Space-multi-layer Topography

基于区域灵敏度及空间多层形貌的车身设计

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