【摘要】 采用对随机变量求偏导数的方法，推导了受离心力作用下的三维弹性随机边界元积分方程，考虑了基本随机变量为强度极限、转速和材料密度等因素。本文将所发展的方法用于结构强度的可靠性分析，经考题算例分析与某发动机轮盘的应用分析表明，所发展的方法是行之有效的。更多还原

【Abstract】 The stochastic boundary element method(SBEM)is developed in this paper for 3D problems with body forces and reliability analysis of engineering structures.The integral equations of SBEM are established by the approach of partial derivation with respect to stochastic variables,considering the yield limit,rotation speeds and material density to be the fundamental stochastic variables.Through analyzing a numerical example and a turbo-disk of an aeroengine,the results show that the method developed is successful.更多还原