弹性半空间表面在集中力作用下的动位移  

Dynamical Displacements of an Elastic Half Space due to Concentrated Surface Loading

作　　者：洪锦如[1] 

机构地区：[1]同济大学

出　　处：《上海力学》1990年第2期10-21,共12页Chinese Quarterly Mechanics

摘　　要：用De Hoop方法处理了在具有任意泊松比的弹性半空间表面上作用任意方向的集中突加荷载时产生的表面位移。并归结为四个积分,其中三个积分有封闭形式的精确解,第四个可化为椭圆积分,或用数值法计算。In this paper, De Hoop method method is used to analyse the dynamical surface displacement of an elastic half space due to a point loading, which is a time step function and with arbitrary direction. As a result, four integrals are involved, three of which can be given in closed form and the fourth can be expressed in terms of elliptic integrals or be evaluated numerically.

关 键 词：弹性半空间 集中力 动载荷 动态位移 

分 类 号：O347.1[理学—固体力学]