Decentralized SHM method based on substructure parameter identification

Michihito Shiraishi; Akira Mita

doi:10.1117/12.880017

15 April 2011 Decentralized SHM method based on substructure parameter identification

Michihito Shiraishi, Akira Mita

Proceedings Volume 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011; 79813B (2011) https://doi.org/10.1117/12.880017
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

In this paper, we propose a new decentralized method for structural health monitoring based on substructure dynamical parameter identification, which can be executed in parallel on multiple smart sensor nodes. A decentralized Kalman filter algorithm is applied for modal parameter identification of structures using multi-input and multi-output ARX model. Furthermore, network communication topology is investigated using the substructure approach for finding a practical application of the decentralized algorithm. Numerical simulation studies are carefully performed for three types of network topologies and two types of model structures. Identification tests using the seismic observation data of existing 5-story building are also conducted. The results show the feasibility of the proposed decentralized method.

Citation Download Citation

Michihito Shiraishi and Akira Mita "Decentralized SHM method based on substructure parameter identification", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79813B (15 April 2011); https://doi.org/10.1117/12.880017

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