一种工程结构模态阻尼特征预估方法

A estimating method of model damping eigenvalues for enginccring structures

文章基于耗能理论提出一种用于预估模态阻尼的方法，预估计算值与试件测试值吻合较好，并得到某方舱及装舱设备结构的模态阻尼预估数值．该方法在工程结构动力分析中对预估阻尼特征具有应用价值。

In this paper,based on the loss-energy theory,a method used to estimate the model damping is offered.The estimated values are better coincident with the tested ones,By the presented method the estimating valuses of model damping of the real structure of a certainshelter which containes electrical equipments are obtained.The method is vaiuable to the dy-namic analysis in enginecring structures.