长杆弹侵彻半无限厚土的旋转效应分析

赵子龙;张瑾瑾;黄晓琼

振动与冲击 ›› 2010, Vol. 29 ›› Issue (4) : 9-11.

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PDF(774 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (4) : 9-11.
论文

长杆弹侵彻半无限厚土的旋转效应分析

  • 赵子龙; 张瑾瑾; 黄晓琼
作者信息 +

ANALYSIS OF REVOLUTION EFFECT ON LONG ROD PENETRATING INTO SOIL

  • Zhao Zilong; Zhang Jinjin; Huang Xiaoqiong
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文章历史 +

摘要

利用刚流撞击模型以及土壤介质变形沿合力方向假设,建立了微元合力与介质移动速度之间的关系。在此基础上,建立了长杆弹侵彻土壤时考虑旋转效应的动力学方程。由这些非线性动力学方程的数值解,确定了撞击力和侵入位移。计算结果表明,随着初始角速度的增大,侵入位移的幅值明显增大。




Abstract

By using the rigid–fluid impact model and the resultant force direction expansion hypothesis of soil deformation, the relation between the resultant force of infinitesimal and the velocity of soil infinitesimal is established. On this basis, the dynamics equations of the rod are established when half-infinite soil is penetrated by a long rod. The impact force history curves and the penetration displacement history curves are determined by the numerical of the nonlinear equations. It is obtained that with the increase of initial angle velocity, the penetration displacement will increase.

关键词

长杆弹 / 侵彻 / 土壤 / 旋转效应

Key words

long rod / penetration / soil / revolution effect

引用本文

导出引用
赵子龙;张瑾瑾;黄晓琼. 长杆弹侵彻半无限厚土的旋转效应分析[J]. 振动与冲击, 2010, 29(4): 9-11
Zhao Zilong;Zhang Jinjin;Huang Xiaoqiong. ANALYSIS OF REVOLUTION EFFECT ON LONG ROD PENETRATING INTO SOIL[J]. Journal of Vibration and Shock, 2010, 29(4): 9-11

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