柱形波纹压溃元件轴向冲击力学行为研究

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (4) : 21-27.

论文

柱形波纹压溃元件轴向冲击力学行为研究

付本元1，廖昌荣1，李祝强1，章鹏1，简晓春2，吴春江2

作者信息 +

A study on the mechanical behavior of a crushable cylindrical corrugated component under axial impact

FU Benyuan1, LIAO Changrong1, LI Zhuqiang1, ZHANG Peng1, JIAN Xiaochun2, WU Chunjiang2

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摘要

针对冲击载荷作用下多层柱形波纹压溃元件的力学特性分析非常困难的问题，结合柱形波纹压溃元件的冲击压溃变形特征，将柱形波纹压溃元件的变形划分为弹性变形阶段、壁面接触前的塑性变形阶段、混合塑性变形阶段、壁面接触过程中的塑性变形阶段，研究了轴向冲击下柱形波纹压溃元件变形抗力的理论计算方法。利用Matlab Simulink软件编程，计算分析了不同高度落锤冲击柱形波纹压溃元件产生的变形抗力与压溃量之间的映射特性，并与实验结果进行了比较。研究结果表明：在不同跌落高度冲击下，理论计算的变形抗力与实验结果吻合较好，证明所提出的理论分析方法是合理的，对波纹压溃缓冲元件的工程应用具有指导意义。

Abstract

Analyzing the mechanical behavior of a crushable multi-cylindrical-corrugated component under impact load is currently a challenge. This paper presents a theoretical methodology for evaluation of the deformation resistance of a crushable cylindrical-corrugated component under axial impact load. By investigating the collapse deformation characteristics, the deformation was divided into four sections: elastic deformation stage, plastic deformation stage before surface contact, mixed plastic deformation stage, and plastic deformation stage during surface contact. The theoretical mapping relationship between the deformation resistance and crushed displacement under different drop heights was obtained by Matlab Simulink. The theoretical relationship was compared with the experimental result, which showed a good agreement between the predicted resistant forces and the testing data under various drop heights. The result shows the feasibility of the proposed analytical methodology for the practical application of the crushable cylindrical-corrugated component.

导出引用

付本元1，廖昌荣1，李祝强1，章鹏1，简晓春2，吴春江2. 柱形波纹压溃元件轴向冲击力学行为研究[J]. 振动与冲击, 2017, 36(4): 21-27

FU Benyuan1, LIAO Changrong1, LI Zhuqiang1, ZHANG Peng1, JIAN Xiaochun2, WU Chunjiang2. A study on the mechanical behavior of a crushable cylindrical corrugated component under axial impact[J]. Journal of Vibration and Shock, 2017, 36(4): 21-27

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