摘要
本文提出了二维连续平稳随机场的一种新的表述方法—等参局部平均随机场模型,并将它引入Neumann随机有限元法。算例表明,本文的方法是有效的且能提高精度和计算效率。
In this paper, an orthogonalized isoparametric local average model for 2-D continuative stationary random fields is proposed. This model is used in Neumann stochastic finite element method. Numerical example shows the accuracy and the efficiency of the method.
关键词
随机场
等参局部平均
随机有限元法
random field
isoparametric local average
stochastic finite element method
Neumann expansion.
