现代制造工程 ›› 2018, Vol. 450 ›› Issue (3): 53-57.doi: 10.16731/j.cnki.1671-3133.2018.03.010

• 车辆工程制造技术 • 上一篇    下一篇

基于低速正碰的吸能盒式防撞梁吸能特性研究

陈有松1,孙万朋1,2,安超群1,尹浩庆1   

  1. 1 上海汽车集团股份有限公司商用车技术中心,上海 200438;
    2 上海理工大学机械工程学院,上海 200093
  • 出版日期:2018-03-20 发布日期:2018-07-19
  • 作者简介:陈有松,硕士,工程师,主要研究方向为整车子系统CAE、虚拟车辆开发技术。 孙万朋,硕士,主要研究方向为现代汽车设计理论、汽车安全性能分析。 E-mail:619911621@qq.com

Research on energy-absorption characteristics of anti-collision beam with energy absorbing box based on low-speed frontal collision

Chen Yousong1,Sun Wanpeng1,2,An Chaoqun1,Yin Haoqing1   

  1. 1 SAIC Motor Commercial Vehicle Technical Center,Shanghai 200438,China;
    2 College of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China
  • Online:2018-03-20 Published:2018-07-19

摘要: 基于防撞梁系统的研究与发展现状,对某商用车型的防撞梁系统进行了概念设计,建立了有效的正面100%刚性壁障低速碰撞仿真模型。通过正交试验法,系统地研究了横梁截面、吸能盒截面、吸能盒内板厚度和吸能盒外板厚度对防撞梁系统吸能特性的影响,并利用极差法和综合平衡法选出了最大峰值碰撞力小、吸能盒压缩量小的吸能特性最优组合。最后探讨了溃缩槽间距对吸能盒式防撞梁吸能特性的影响。分析结果指出,最终组合方案满足碰撞力要求,并且吸能盒式防撞梁具有较好的吸能能力。

关键词: 吸能盒, 低速正面碰撞, 正交试验, 压缩位移, 最大峰值碰撞力, 溃缩槽间距

Abstract: On the basis of research and development of anti-collision beam system,a conceptual design of anti-collision beam system for a commercial vehicle was carried out,and a FE model was created for low-speed frontal collision with 100% rigid barrier.And using orthogonal experimental design to systematic analyze the factors which influence the energy-absorption characteristics of anti-collision beam.The factors are the section of bumper beam,the section of energy absorbing box,the inner plate thickness of energy absorbing box and the outer plate thickness of energy absorbing box.Using the range method and the comprehensive balance method to selected the best combination of energy-absorption characteristics which with low maximum collision force and small compression displacement.Finally,explore the distance of induced groove which influences the energy-absorption characteristics.The results indicate that the final combination has better energy absorption capacity and meets the requirements of collision force.

Key words: absorbing box, low-speed frontal collision, orthogonal experimental design, compression displacement, maximum collision force, distance of induced groove

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