用于接触问题的逆随机边界元法和可靠性预测  

Inverse stochastic boundary element method for reliability with contact problems

作　　者：高发兴[1] 贾虹[1] 翁晓红[1] 梁利华[1] 

机构地区：[1]浙江工业大学机电工程学院,浙江杭州310032

出　　处：《浙江工业大学学报》2000年第3期210-215,共6页Journal of Zhejiang University of Technology

基　　金：浙江省自然科学基金资助项目! (1 990 0 2 )

摘　　要：将改进的滤波算法和随机边界元法结合 ,提出了用于预测接触应力的逆随机边界元法。根据某些内点应变的随机分布 ,建立了量测值的边界元解析灵敏度矩阵和解析量测矩阵 ,从而使得预测边界上的随机接触载荷的分布和结构可靠度的分布成为可能。最后 ,算例显示了本方法的有效性。An inverse stochastic boundary element method for prediction of contact stress is presented by combining improved filter algorithm with stochastic boundary element method. Analytical sensibility matrix of boundary element method and analytical observing matrix of observing equation are obtained from the stochastic distribution of some internal points. It makes it possible to determine the distribution of stochastic contact loads in boundary and the prediction of structural reliability. Finally, a numerical example shows the effectiveness of this method.

关 键 词：滤波算法 随机边界元法 结构可靠度 接触问题 

分 类 号：O343.3[理学—固体力学] TU311.2[理学—力学]