Health monitoring strategy for smart piezoelectric concrete structures

Wei Sun; Shi Yan

doi:10.1117/12.775205

8 April 2008 Health monitoring strategy for smart piezoelectric concrete structures

Wei Sun, Shi Yan

Proceedings Volume 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008; 69320I (2008) https://doi.org/10.1117/12.775205
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

Abstract

According to the characters of smart piezoelectric concrete structures, the structure health monitoring strategy was researched in the paper in details including three basic contents. Firstly, it was proposed that the placement of piezoelectric transducers in the form of an array. The problem of the distance between adjacent transducers was also discussed. Secondly, several forms of detecting signals, frequency band and modes of the transmitting signals were pointed out in the paper. At last, a feasible damage identification method was proposed. The method combined the wavelet packet analysis with the root-mean-square deviation to evaluate the damage level. Especially, when analyzing the damage location, a concept of a transducer array resolution was proposed and used in the damage identification. The transducer array divided the structure into many sub-regions where the damage locations were approximately determined. The accuracy of the damage location will be better and finer with the increasing of the transducer array resolution.

Citation Download Citation

Wei Sun and Shi Yan "Health monitoring strategy for smart piezoelectric concrete structures", Proc. SPIE 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, 69320I (8 April 2008); https://doi.org/10.1117/12.775205

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