结构动力响应的新方法

A New Method for the Dynamic Response of Structure

以结构动力响应的精确卷积形式解Ｄｕｈａｍｅｌ积分为基础，提出了一种新的结构动力响应的数值计算方法。新方法把激振力作分段线性化处理，给出了各分段内Ｄｕｈａｍｅｌ积分的数值计算公式。最后，通过算例说明了本文方法的精度是较高的。

Based on the Duhamel integration solution for structure dynamics,a new numerical method to determine the dynamic respones of structures is presented in this paper.The excition force is approximated by line functions of which the formulations of Duhamel integration are presented.It's been shown by an example,that the response solution of the new method is of high accuracy and that the vibration frequency and calculating step have little effect on the accuracy of the proposed method.