冲压筋薄壁管轴向压缩特性试验研究  

STUDY OF THE AXIAL CRUSHING CHARACTERISTICS OF THE STIFFENED THIN-WALLED TUBES

作　　者：王国权[1] 王青春[2] 宫保贵[1] 

机构地区：[1]北京信息科技大学机电工程学院,北京100192 [2]北京林业大学工学院,北京100083

出　　处：《力学与实践》2010年第2期42-46,共5页Mechanics in Engineering

基　　金：北京市优秀人才资助项目(20081D0500600147)

摘　　要：以当前车架前纵梁薄壁吸能管为依据,制作了普通单、双帽薄壁管以及单、双帽冲压筋薄壁管试件,并依次进行了轴向准静态压缩试验,来研究这些管件的轴向压缩吸能特性.试验发现:添加冲压筋之后,单、双帽薄壁结构的轴向吸能特性都得到了很大提高,但冲压筋对帽型薄壁结构稳定性的提高不明显.试验结果表明,在不增加材料的前提下,通过改变吸能元件的截面结构可以提高其碰撞吸能特性.To study the axial energy-absorption performance of thin-walled tubes of energy absorbing elements in a vehicle body,thin-walled tubes with single and double hat and with stiffeners were designed.Then the quasi-axial compression tests were carried out.Test results show that the energy-absorption performance of the thin-walled tubes is increased when the number of stiffeners is increased,but the quasi-axial steady ability is decreased.

关 键 词：冲压筋 薄壁管 轴向压缩 吸能特性 

分 类 号：TB24[一般工业技术—工程设计测绘]