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基于能量方程的建筑结构半主动控制
引用本文:涂文戈,邹银生.基于能量方程的建筑结构半主动控制[J].地震工程与工程振动,2005,25(3):145-151.
作者姓名:涂文戈  邹银生
作者单位:湖南大学,土木工程学院,湖南,长沙,410082;湖南大学,土木工程学院,湖南,长沙,410082
基金项目:高等学校博士学科点专项科研基金项目(98053207)
摘    要:基于地震作用下结构的能量响应方程,本文提出根据结构吸收能量、相对动能和变形能的变化(对时间的一次导数)进行结构的“开-关”半主动减震的控制律;在物理坐标系中对这3种控制律的动力特征和控制效果,以及作动器参数的选取进行了分析。本文针对建筑结构进行了数值仿真。计算结果表明,本文提出的控制律可以有效地减小了结构的位移响应,对随机不确定的地震波均具有良好的减震效果,适应性强,而且控制器参数合理。其中根据结构变形能推导的控制律的半主动控制效果优于其它2种控制律。

关 键 词:结构  抗震  减震  半主动控制  能量方程
文章编号:1000-1301(2005)03-0145-07

Semi-active control of buildings based on energy response
Tu Wenge,Zou Yinsheng.Semi-active control of buildings based on energy response[J].Earthquake Engineering and Engineering Vibration,2005,25(3):145-151.
Authors:Tu Wenge  Zou Yinsheng
Abstract:In this paper, three semi-active control algorithms based on energy Absorbed, kinetic energy, and energy of deformation of buildings are presented. In physics coordinate, both the dynamic characteristic of buildings controlled and the effect of semi-active control using them are studied, and also the choice of parameters of control devices is studied. They are illustrated by using a building. The semi-active controls using them can reduce the response of displacement of building effectively. They are applicable, with which the effect of shocking Absorption is good for stochastic earthquake excitation. And parameters of control devices are in reason. The algorithm based on energy of deformation of buildings is better than the others.
Keywords:structure  seismic  shock Absorption  semi-active control  energy response
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