摘要
为解决车辆短前悬在正面碰撞中能量吸收不足导致整车加速度波形增高,对乘员的伤害增大的问题,对汽车前副车架脱落设计进行研究分析,包含零部件试验设计和CAE模拟分析及系统级试验验证。实现了副车架在碰撞中的脱落,碰撞能量得到释放,动力总成可以下沉,增加了机舱的变形吸能空间。为碰撞加速度波形的控制提供了一种新的方法,同时也为新车型被动安全性能的开发提供了一种新的思路。
The paper is aimed at solving the problem that insufficient energy absorption of the short overhang in the vehicle frontal crash would lead to the increase in acceleration peak value and to serious injury for passengers. The study and analysis were done on separate design of front sub-frame, including experimental design of parts, CAE simulation and system-level verification test. The results show that the falling of the front sub-frame can be achieved, the collision energy is released, the powertrain output is decreased, and the energy absorbing capacity rises. The paper provides a new method for impact control.
出处
《汽车工程学报》
2016年第5期369-375,共7页
Chinese Journal of Automotive Engineering
基金
浙江省汽车安全技术研究重点实验室建设项目(2009E10013)
关键词
前副车架
脱落设计
试验研究
正面碰撞
加速度波形
front sub-frame
separate design
experimental study
front impact
accelerate pulse
