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Open AccessArticle

Entropy-Based Structural Health Monitoring System for Damage Detection in Multi-Bay Three-Dimensional Structures

Department of Civil Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
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Entropy 2018, 20(1), 49; https://doi.org/10.3390/e20010049
Received: 28 November 2017 / Revised: 3 January 2018 / Accepted: 5 January 2018 / Published: 11 January 2018
In this paper, a structural health monitoring (SHM) system based on multi-scale cross-sample entropy (MSCE) is proposed for detecting damage locations in multi-bay three-dimensional structures. The location of damage is evaluated for each bay through MSCE analysis by examining the degree of dissimilarity between the response signals of vertically-adjacent floors. Subsequently, the results are quantified using the damage index (DI). The performance of the proposed SHM system was determined in this study by performing a finite element analysis of a multi-bay seven-story structure. The derived results revealed that the SHM system successfully detected the damaged floors and their respective directions for several cases. The proposed system provides a preliminary assessment of which bay has been more severely affected. Thus, the effectiveness and high potential of the SHM system for locating damage in large and complex structures rapidly and at low cost are demonstrated. View Full-Text
Keywords: multi-bay; three-dimensional; structural health monitoring; multi-scale; cross-sample entropy multi-bay; three-dimensional; structural health monitoring; multi-scale; cross-sample entropy
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Lin, T.-K.; Laínez, A.G. Entropy-Based Structural Health Monitoring System for Damage Detection in Multi-Bay Three-Dimensional Structures. Entropy 2018, 20, 49.

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