direct interpolation

The meshless method uses the moving least squares(MLS) approximation,uses the Heaviside function as a test function of the weighted residual method and uses direct interpolation method to enforce essential boundary conditions.

这种无网格方法采用移动最小二乘近似函数(MLS)来近似试函数,采用Heaviside函数作为加权残值法中的权函数,采用直接插值法来施加本质边界条件。

Equivalent stress analysis for the base surfaces of arch dams by direct internal force method;

基于直接内力法的拱坝建基面等效应力分析

The direct internal force method of equivalent normal stress analysis for the base surfaces of arch dams is presented in this paper.

提出适合分析拱坝建基面等效正应力的直接内力法,结合小湾高拱坝三维弹塑性有限元整体分析成果,研究分析了超载过程中拱端推力、推力角和抗滑安全系数的分布规律。