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力学与实践 ›› 2010, Vol. 32 ›› Issue (2): 42-46.doi: 10.6052/1000-0879-2009-148

• 应用研究 • 上一篇    下一篇

冲压筋薄壁管轴向压缩特性试验研究

王国权 王青春 宫保贵   

  1. 北京信息科技大学 机电工程学院 100192
  • 收稿日期:2009-04-07 修回日期:2009-06-10 出版日期:2010-04-08 发布日期:2010-04-08

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

Guoquan Wang   

  • Received:2009-04-07 Revised:2009-06-10 Online:2010-04-08 Published:2010-04-08

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.

关键词: 冲压筋 薄壁管 轴向压缩 吸能特性

Abstract: 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.

Key words: stiffen half, thin-walled tubes, axial compression, energy-absorbing behavior