• CN:11-2187/TH
  • ISSN:0577-6686

›› 1994, Vol. 30 ›› Issue (4): 42-49.

• 论文 • 上一篇    下一篇

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低速物体撞击下粘弹性基支矩形弹性薄板的动力响应

黄伟;邹毅达   

  1. 华东工学院
  • 发布日期:1994-07-01

DYNAMIC RESPONSE OF A RECTANGULAR THIN ELASTIC PLATE ON A VISCOELASTIC FOUNDATION IMPACTED BY A LOW VELOCITY BODY

Huang wei;Zou Yida   

  1. East China Institute of Technology
  • Published:1994-07-01

摘要: 针对了工程实践中所遇到的撞击问题,研究分析了半无限线性粘弹性Winkler基础上的矩形弹性薄板受低速刚体撞击的动力响应问题,推导出了关于撞击力F(t)的非线性Volerra积分方程,得出了薄板位移响应W(x,y,t)的一般表达式,并给出了求解计算的数值方法。作为应用实例,对四边简支弹性方薄板在中心受刚球撞击的问题进行了分析计算,并对结果进行了对比讨论。

关键词: 动力响应, 矩形板, 粘弹性, 撞击

Abstract: The dynamic response problem of a rectangular thin elastic plate on a half-space viscoelastic Winkler foundation impacted by a low velocity rigid body is discussed, A non-linear Volterra integral equation on impact force F( t ) is deduced, and the dynamic transverse deflection W(x, y, t ) of the plate is put forward. To solve the integral equation, an effective numerical computation method is used. At the end, the results of a practical example are shown and discussed.

Key words: Dynamic response, Impact, Rectangular plate, Viscoelasticity