Comparison of Several Methods for Optimal Sensor Placement in Structural Health Monitoring

Abstract:

This paper begins with an introduction of two existing methods of prioritizing sensor locations, effective independence (EI) method and damage sensitivity (DS) method, followed by a new method (DRS) based on the harmony between damage identifiability and modal observability. For the comparison of these methods, the difference and relationship between these Fisher information matrixes (FIMs) is examined by a quasi-analytical mode. In addtion, this approach discusses the adaptability of the three methods. Numerical example indicates the limitation of EI method and DS method, and DRS method effectively avoids the contradiction between the two different optimization criterions. Finally, utilizing the result of the optical sensor locations, the results of structural damage detection by DRS method are much more accurate comparing with the other two methods on the whole.This template explains and demonstrates how to prepare your camera-ready paper for Trans Tech Publications. The best is to read these instructions and follow the outline of this text.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 3254-3257
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.3254
• Online since: May 2011
• Authors: Xiao Meng Sun, Zi Cai Yan, Da Yong Zhu
• Keywords: Damage Sensitivity, Fisher Information Matrix, Health Monitoring, Optimum Sensor Placement

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