Optimal sensor location for output-only system identification

摘要：

　　In vibration based structural identification,uncertainty in identified parameters depend on the location of sensors.Hence,determining appropriate sensor locations becomes important in the experiment design stage.In this paper,a strategy is discussed for finding the optimal sensor locations for stiffness parameter identification using output-only data.These locations are optimal in the sense that the measured data will contain the maximum information,and hence lead to minimum uncertainty in the parameters identified from such data.The locations are obtained by optimizing the determinant of the Fisher Information Matrix(FIM).The approach is numerically validated by comparing against identification results,obtained using frequency domain decomposition coupled with a Bayesian model updating technique,for different sensor set-ups.

关键词： optimal sensor location stiffness identification Fisher Information Matrix

作者: D.Ghosh D.Jana S.Mukhopadhyay

作者单位: Department of Civil Engineering,Indian Institute of Technology,Kanpur,India Department of Civil and Environmental Engineering,Rice University,Houston,USA

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 2769-2773

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）