Component sensitivity analysis of conceptual vehicle body for lightweight design under static and dynamic stiffness demands

被引：57

作者：

Chen, Wei ^{[1
]}

Zuo, Wenjie ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Automot Simulat & Control, Changchun 130025, Peoples R China

来源：

INTERNATIONAL JOURNAL OF VEHICLE DESIGN | 2014年 / 66卷 / 02期

基金：

中国国家自然科学基金;

关键词：

vehicle design; CVB; conceptual vehicle body; lightweight; sensitivity analysis; structural components; torsional and bending stiffness; frequency; box beam; LAYOUT DESIGN; MULTICOMPONENT SYSTEM; PRODUCT FAMILIES; FRAME STRUCTURES; OPTIMIZATION; TOPOLOGY; BEAMS; SHAPE;

D O I：

10.1504/IJVD.2014.064546

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

At conceptual design stage, engineers mostly rely on their experience, intuition, and data accumulation when making decisions on conceptual vehicle body (CVB). This paper presents a component sensitivity method for the lightweight design of the CVB. Firstly, CVB is simplified as a frame structure consisting of box beams. Secondly, torsional stiffness, bending stiffness and frequencies are adopted to evaluate the global stiffness performances of the CVB frame. Thirdly, component sensitivity formulas are derived. Fourthly, two application examples of car and bus frame verify that the proposed method is efficient to guide the cross-sectional sizes modification. The sufficient condition to obtain positive frequency sensitivity is also discussed. And finally Vehicle Body-FDO software is released for free to implement this method.

引用

页码：107 / 123

页数：17

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