多变量非高斯脉动风压模拟的非迭代法

基于多变量非高斯随机过程间的相关性,将发展的单变量非高斯过程的非迭代算法扩展至多变量非高斯过程的模拟.通过多变量高斯过程的相干函数来考虑多变量非高斯过程的互相关性,建立多变量非高斯过程的非迭代模拟算法.多变量非高斯风压的数值模拟表明:非迭代模拟算法能有效地模拟低、中、高斜度的多变量非高斯过程.

A Non iterative Approach for Simulating Multivariate Non Gaussian#br# Fluctuating Wind Pressure

Based on the correlativity of multivariate non Gaussian random processes, the proposed non iterative algorithm used for the univariate non Gaussian stochastic processes is expanded to simulate the multivariate non Gaussian processes. The coherency functions of underlying multivariate non Gaussian processes are dealt with by resorting to the correlativity of multivariate Gaussian processes, a non iteration based algorithm is developed for simulating the multivariate non Gaussian processes. The numerical simulations of the multivariate non Gaussian fluctuating wind pressure indicate that the non iteration based algorithms can effectively simulate the multivariate non Gaussian processes with low, middle, and high skewnesses, respectively.