吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (1): 58-63.doi: 10.13229/j.cnki.jdxbgxb201701009

• 论文 • 上一篇    下一篇

基于简化碰撞仿真模型的概念汽车部件布局优化

麻凯1, 2, 高继东1, 徐涛3   

  1. 1.中国汽车技术研究中心 汽车工程研究院,天津 300300;
    2.中汽研(天津)汽车工程研究院有限公司 博士后工作站,天津 300300;
    3.吉林大学 机械科学与工程学院,长春 130022
  • 收稿日期:2015-01-25 出版日期:2017-01-20 发布日期:2017-01-20
  • 通讯作者: 高继东(1976-),男,教授级高级工程师.研究方向:车辆工程.E-mail:gaojidong@catarc.ac.cn
  • 作者简介:麻凯(1978-),男,副教授,博士.研究方向:固体力学.E-mail:makai@jlu.edu.cn
  • 基金资助:
    吉林省科技厅青年科研基金项目(20130522180JH).

Optimization of the layout of concept vehicle key parts based on simplified auto crash simulation model

MA Kai1, 2, GAO Ji-dong1, XU Tao3   

  1. 1.Automotive Engineering Research Institute,China Automotive Technology and Research Center,Tianjin 300300, China;
    2.China Automotive Technology and Research Center(Tianjin) Automotive Engineering Research Institute Co.,Ltd.,Tianjin 300300,China;
    3.College of Mechanical Science and Engineering, Jilin University,Changchun 130022,China
  • Received:2015-01-25 Online:2017-01-20 Published:2017-01-20

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摘要： 提出了基于被动安全的概念车简化模型下的主要部件布局的多目标优化设计方法。首先用多质量弹簧系统等效成整车模型,再用弹簧刚度折线表示各个主要部件的受力关系,用最大相对位移量描述各个主要部件的相对位置关系,即整车结构布局参数,最后使用多目标优化方法以加速度峰值等为目标、整车结构布局参数为参数迭代计算得到优化解。最后通过仿真算例验证了本文方法的有效性。

关键词: 车辆工程, 汽车碰撞, 关键点, 多目标优化方法, 被动安全, 机械振动方法

Abstract: The power assembly acceleration, the maximum car-body acceleration and power acceleration stiffness are the most important factors in vehicle passive safety. Therefore, in concept auto design these factors must be considered. In this paper a layout optimization method of the key parts of simplified model of concept auto, equivalent to a mass-spring system, is proposed. In the system, the forces among the parts are transformed to spring stiffness broken lines, and relative positions of the key parts are described by the relative maximum displacements, which are taken as the parameters in the optimization. Multi-objective optimization is applied in the concept car layout, and the objectives are the acceleration and so on. The overall optimal lay out of the vehicle structure is obtained by parameter iteration. The feasibility of the proposed optimization method is proved by simulation of a concept vehicle lay out example.

Key words: vehicle engineering, automobile collision, key point, multi-objectives optimization method, passive safety, mechanical vibration method

中图分类号: 

  • U462.2
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