振形叠加法与Duhamel积分数值解

Mode Superposition Method and Duhamel Integral Numeral Solution

振型叠加法是结构动力分析的一种有效方法 ,但主坐标的求解需要做Duhamel积分 .本文推导了一种求Duhamel积分的数值解算法 。

Mode superposition method is an efficient way of analyzing the structural dynamics. The solution of principal coordinate needs making Duhamel integral.This paper deduces a algorithm to obtain numeral solution of Duhamel integral. It has a very high calculation efficiency in the practical application.