摘要
本文根据双自由度系统的随机反应,推导了设置调谐质量阻尼器(TMD)的单自由度系统的运动方程,求出了白噪声基底输入时,设置TMD的单自由度系统的反应方差与未设置TMD的单自由度系统的反应方差之比,并采用模式搜索法对其进行优化方法,得到了TMD系统的最佳减振效果以及相应的TMD的参数取值。本文的分析表明,TMD系统对减小白噪声基底输入的单自由度系统的随机反应是十分有效的。
In this paper, the equations of motion are derived for a single-degree-of-freedom system with a tuned mass damper (TMD). The ratio of the response standard deviation of the system with TMD to the response standard deviation of system without TMD is determined. The smallest values of the ratio and corresponding TMD parameters are established by using an optimization program. It is demonstrated that the TMD is quite effective in reducing the random response of a single - degree - freedom system under white noise base excitation.
出处
《地震工程与工程振动》
CSCD
北大核心
1996年第1期116-121,共6页
Earthquake Engineering and Engineering Dynamics
