Semiactive control of a base isolated building using magnetorheological dampers
In this paper we present a methodology that leads to seismic vibration suppression of a class of based isolated civil structures by means of magnetorheological (MR) dampers.MR dampers are versatile devices that generate the damping force by controlling the rheological properties of the constituting MR fluid through a varying magnetic field.MR dampers are more efficient than other devices in terms of energy requirements,damping force and mechanical design.However,they exhibit a complex behavior,characterized by the hysteretic response to a velocity input,which is rather difficult to model.This in turn makes imperative the use of nonlinear control techniques to achieve the final objective.In this paper,Bouc-Wen model is used to describe the dynamics of an MR damper and adaptive backstepping controller is developed to explore its performance in seismic vibration suppression.
adaptive control backstepping control Bouc-Wen model magnetorheological damper seismic motion.
Mauricio Zapateiro Ningsu Luo
Institute of Informatics and Applications,University of Girona,17071 Girona,Spain
国际会议
International Conference on Modelling,Identification and Control(模拟、鉴定、控制国际会议)
上海
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）