DUAL-TYPE SENSOR DATA FUSION FOR STRUCTURAL HEALTH MONITORING:EXPERIMENTAL STUDY
The efficiency of structural health monitoring system (SHMS) depends strongly on the quality of the measured response data,which further relies substantially on the types,numbers and spatial allocation of sensors in structures. An integrated design approach of sensor systems with both strain gauges and displacement transducers has been presented and numerical studies have been conducted by the authors. The numerical results demonstrated that the proposed method offers an effective way to design a dual-type sensor system as a whole,and the hybrid sensor network can provide more complete and accurate information about structural responses compared with single-type sensor systems. The experimental verification of this method is presented in this paper. A simply supported overhanging steel beam was used to validate the effecacy of the proposed technique for integrated sensor optimal placement and data fusion. The theoretical criterion for the optimization procedure was formulated based on the strain and displa cement mode shapes extracted from the finite element models (FEM). Unobserved structural responses were finally predicted. The results indicate that the proposed integrated sensor optimal placement method is feasible and efficient.
Displacement transducers Strain gauges Sensor locations Experimental study
X.H. Zhang Y.L.Xu S. Zhu S.Zhan
Department of Civil and Structural Engineering,The Hong Kong Polytechnic University,Kowloon.Hong Kong,P.R. China
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
873-879
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）