Active structural control focusing on absolute acceleration based on extended equivalent-input-disturbance approach
This paper extends the equivalent-input-disturbance(EID)approach to active structural control with a special focus on suppressing the absolute acceleration and relative displacement of a building simultaneously.An equivalent input disturbance is a signal on the control input channel that has the same effect on the output of a system as disturbances do.Since a structural control using conventional EID approach only considers the relative displacement and relative velocities of a building,the absolute acceleration may not be suppressed.However,suppressing the absolute acceleration is important for active structural control to protect buildings,properties,and people from big earthquakes.This paper presents a modified EID approach to produce an estimate of an EID that suppresses not only the displacement but also the absolute acceleration.A numerical example of an eleven degree-of-freedom model and two kinds of earthquake accelerograms are used to demonstrate the validity of the method.The results show that,while the control input of the extended EID is smaller than that of the conventional EID,the displacement and the absolute acceleration for the extended EID are much smaller than that for the conventional EID.
Active structural control Equivalent-input-disturbance (EID) vibration control absolute acceleration
Kou.Miyamoto Daiki Sato Jinhua.She
Dept.of Architecture and Building Engineering,Tokyo Institute of Technology,Japan;Research Fellow of FIRST,Tokyo Institute of Technology Dept.of Mechanical Engineering,School of Engineering,Tokyo University of Technology
国际会议
The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)
青岛
英文
360-370
2018-07-22（万方平台首次上网日期，不代表论文的发表时间）