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汽车安全与节能学报

汽车安全与节能学报 ›› 2015, Vol. 6 ›› Issue (01): 79-84.DOI: 10.3969/j.issn.1674-8484.2015.01.010

• 汽车安全 • 上一篇    下一篇

22MnB5 对侧围A/B 柱变形行为的影响

王智文1，刘 浩2   

  1. 1. 北京汽车集团有限公司 新能源汽车管理部，北京 101300，中国；
    2. 长城汽车股份有限公司技术中心，河北省 保定市 071000，中国
  • 收稿日期:2014-12-26 出版日期:2015-03-25 发布日期:2015-04-02
  • 作者简介:王智文（1976 －），男（汉），山西，高级工程师。E-mail: wangzhiwen@baicgroup.com.cn

Effect of the strengthen board on deformation behavior of#br# bodywork key parts

WANG Zhiwen1 , LIU Hao2   

  1. 1. Beijing Automotive Group Co., Ltd, Beijing 101300, China;
    2. Great Wall Motor Company Limited, Baoding City 071000, China
  • Received:2014-12-26 Online:2015-03-25 Published:2015-04-02

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摘要：

为给汽车安全部件的材质定义及应用热压成形技术提供数据基础，分析了某委托安全示范
车辆使用B340/590DP 与22MnB5 两种材料的变形行为。仿真中，以车身侧围A 柱和B 柱的安全碰撞
性能的优劣为基本出发点，利用计算机辅助工程（CAE）软件。结果表明：对A 柱加强板来说，在相同
的边界条件下，使用22MnB5 合金比使用B340/590DP 合金的乘员舱变化和A 柱后移量都要小；对于
B 柱加强板来说，使用22MnB5 合金碰撞变形过程中5 个不同位置的侵入量均小于B340/590DP 合
金，车体加速度变化不大，但侵入速度略高于B340/590DP 合金。因此，合理控制安全框架的变形量、
侵入速度，合理控制吸能部件的变形模式，能够有效地降低碰撞中假人的损伤风险。

关键词: 汽车安全, 耐碰撞性能, 车身关键部件, 加强板材料, 计算机辅助工程(CAE) , 变形行为

Abstract:

The deformation behavior of B340/590DP and 22MnB5 strength board material was investigated
for a mandatory safety demonstration vehicle to provide a date base for the development of strength board
material property and hot forming technology. Numerical simulations were done by using CAE (computer
aided engineering) strength, technology analyses and economic analyses methods taking the crash capability
of bodywork A column and B column as necessary condition. The results show that both the passenger
compartment changes and the A column back volume for a 22MnB5 alloy are lower than that of B340/590DP
alloy under the same condition. The crash deformations of 22MnB5 alloy at 5 different places are all smaller
than that of B340/590DP alloy for the B column strength board materials during crash with a little bodywork
acceleration variation and with little higher invasion rate than that of B340/590DP alloy. Therefore, a reasonable
control of deformation, security framework intrusion velocity, and energy-absorbing- component deformationmode,
can effectively reduce injury risk in a collision dummy.

Key words: automotive safety, collision resistant performances, bodywork key parts, strength board material, computer aided engineering (CAE), deformation behavior