A NEW APPROACH FOR INTEGRATING STRUCTURAL PARAMETERS IDENTIFICATION AND SEMI-ACTIVE VIBRATION CONTROL

摘要：

Structural health monitoring and vibration control of civil engineering structures have been actively investigated but treated separately according to their individual primary objective pursued. Its highly desirable to explore efficient algorithms for conducting on line integrated structural health monitoring and vibration control. In this paper, a time domain algorithm is proposed for on-line integrated structural identification and vibration control under unknown excitation. Structural parameters are estimated based on the extended Kalman estimator. Structural optimal active control forces are determined by the linear quadratic Gaussian (LQG) control scheme based on estimated values of structural parameters. Then the structural semi-active control forces are provided by MR dampers. The unmeasured external excitations are estimated by the least-squares estimation approach. A numerical example of on-line integrated identification and vibration control of a multistorey shear building the building under unmeasured external excitation is studied to illustrate the performance of the proposed algorithm.

作者: Zhilu Lai Ying Lei Qiu-Shuang Lin

作者单位: School of Architecture and Civil Engineering,Xiamen University,Xiamen 361005,P.R.China

会议类型: 国际会议

会议名称: The International Symposium on Innovation & Sustainability of Structures in Civil Engineering(2011年土木工程结构创新与可持续发展国际会议)

会议地点: 厦门

会议语种:英文

页码: 532-539

在线出版日期: 2011-10-28（万方平台首次上网日期，不代表论文的发表时间）