• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

›› 2005, Vol. 41 ›› Issue (9): 207-211.

• 论文 • 上一篇    下一篇

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基于正面耐撞性仿真的轿车车身材料轻量化研究

朱平;张宇;葛龙;林忠钦   

  1. 上海交通大学机械与动力工程学院
  • 发布日期:2005-09-15

RESEARCH ON LIGHTWEIGHT OF AUTO-BODY MATERIAL BASED ON CRASHWORTHINESS SIMULATION

Zhu Ping;Zhang Yu;Ge Long;Lin Zhongqin   

  1. School of Mechanical Engineering, Shanghai Jiaotong University
  • Published:2005-09-15

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摘要： 以某轿车为研究对象，运用显式有限元理论，建立整车有限元模型，基于“汽车正面碰撞乘员保护设计规则(CMVDR294)”的耐撞安全性仿真，从满足整车正面耐撞安全性能的角度，分别采用高强钢和铝合金对车身主要覆盖件进行轻量化研究，使车身减质量分别达9.31 kg和53.10 kg，减质量效果达到11.30%和64.50%。对整车变形、整车与刚性墙的碰撞力、运动速度和加速度、主要零部件吸能等方面进行分析、评价，数值仿真验证了轻量化方案的可行性。

关键词: 车身轻量化, 高强钢, 铝合金, 耐撞性, 有限元法

Abstract: Finite element theory is applied and the new style passenger car is used as the prototype, when using high strength steel and aluminum alloy to lighten auto-body, the total weight can be reduced 9.31 kg, 53.10 kg and the lightweight effect is 11.31%, 64.50%. Based on carshworthiness simulation according to CMVDR294, compared the deformation of entire car, the crash force to the rigid wall, velocities, accelerations, and energy-absorbing ability of main parts, the results of crashworthiness simulation verified the feasibility of the proposed method.

Key words: High strength steel, Aluminum alloy, Auto-body lightweight, Crashworthiness, Finite element method

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