含随机参数粘弹性结构的有限元法分析

Finite element method for analysing response of viscoelastic structures with uncertain physical parameters

本文在空间上采用有限元法,在时域上采用离散的方法,建立了用扩阶随机有限元方法求解含随机参数粘弹性问题的计算模型,并给出了算例。结果表明,本文解和Monte-Carlo模拟解吻合。

In this paper,an equivalent random system method is developed and used in analyzing the dynamic response of nonlinear random structures. Its basic idea and calculation method are expounded. The numerical results show that the responses of the proposed approach are much close to the Monte Carlo solutions.