摘要
为了有效地减小重要设备在地震荷载下的动力反应,本文采用可控粘滞流体阻尼器进行半主动控制。本文首先建立安装阻尼器的主体结构(设备系统)的动力方程,在此基础上以设备的相对位移和相对速度作为控制变量,提出了相应的半主动控制解法。数值分析表明,安装可控粘滞流体阻尼器后,设备的加速度和设备层的相对位移得到显著的减小。
This article is about semi-active control by controllable viscous hydro-damper for reducing the important indoor equipment’s dynamical responses under seismic excitation. At first, the author formulated the dynamical (equation) of equipment system——the main structure,in which the damper was installed. Based on this, using relative displacement and relative velocity of equipment floor as control variables, the author builds the relevant semi-active control arithmetic. By numerical value analysis, equipment’s acceleration and relative displacement are reduced distinctly after controllable viscous hydro-damper is installed. Thus, we can conclude that indoor equipment’s safety and workability under seismic excitation are improved after using semi-active control.
出处
《地震工程与工程振动》
CSCD
北大核心
2005年第1期145-148,共4页
Earthquake Engineering and Engineering Dynamics
关键词
可控粘滞流体阻尼器
设备
半主动控制
controllable viscous hydro-damper,equipment,semi-active control
