基于径向基函数的载荷重分配算法

A Load Redistribution Algorithm Based on Radial Basis Function

提出一种基于径向基函数(Radial Basis Functions,简记为RBF)的载荷与质量重新分配算法。通过局域支撑的径向基函数,构建函数空间中某子空间的一组基函数,选择合适的RBF影响半径,从而完成基于RBF的载荷与质量重分配流程,并开展数据插值算法在载荷质量分配过程的应用研究。以工程实际需要为出发点,以细网格结构模型质量节点粗化为关键技术,研究了如何准确、快速地将载荷及质量分配至有限元节点上。

A load and mass redistribution algorithm based on radial basis function is proposed.Based on the radial basis function of local support,a set of base functions of a subspace in the function space is constructed,and the appropriate radius of radial basis function is selected,so that the load and mass redistribution process based on RBF is completed.Considering the practical need of engineering,this paper studies how to allocate load and mass to the finite element node accurately and quickly by roughening the mass node of the fine grid structure model into the key technology.