噪声与振动控制2016，Vol.36Issue(6)：87-91,5.DOI:10.3969/j.issn.1006-1335.2016.06.017
磁流变液的汽车碰撞缓冲吸能装置设计
Design of Vehicle Bumper Energy Absorbers based on Magnetorheological Fluid
摘要
Abstract
In order to solve the problems of uncontrollable stiffness and poor environmental adaptability of the current vehicle bumpers under different collision conditions, a vehicle bumper energy absorber with controlled damping force is designed. This design is based on the controllable and large energy absorption characteristics of magnetorheological fluid. With the maximum damping force and dynamic range as the optimization objectives, the structural parameters are optimized by Matlab genetic algorithm. Two vehicle collision models, one with the traditional energy absorbing bumper and the other with the magneticrheological energy absorbing bumper, are built to simulate the vehicle crash. The results show that the body deformation and maximum impact force of the vehicle with magnetorheological bumper are reduced significantly. The magnetorheological bumper can effectively reduce the harm to people and raise the automotive safety.关键词
振动与波/保险杠/磁流变液/缓冲吸能/碰撞Key words
vibration and wave/bumper/magnetorheological fluid/buffer energy absorption/impact分类
机械制造引用本文复制引用
赵树恩,张俊飞,李玉玲,林繁国..磁流变液的汽车碰撞缓冲吸能装置设计[J].噪声与振动控制,2016,36(6):87-91,5.基金项目
陕西省科技厅科研资助项目(2014JM7291)；重庆市科委科研资助项目(cstc2014jcyjA6007)；山地城市交通系统与安全重庆市重点实验室开放基金资助项目(KTSS201305) （2014JM7291）
