A practical system approach for fully autonomous multi-dimensional structural health monitoring

Jeong Ki kim; Dao Zhou; Dong Sam Ha; Daniel Inman

doi:10.1117/12.816289

30 March 2009 A practical system approach for fully autonomous multi-dimensional structural health monitoring

Jeong Ki kim, Dao Zhou, Dong Sam Ha, Daniel Inman

Proceedings Volume 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009; 72921L (2009) https://doi.org/10.1117/12.816289
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

We present an SHM system integrating both the impedance and the Lamb wave propagation method on a single board, while sharing the same DSP (Digital Signal Processing) processor and the piezoelectric patches. Three functional blocks, such as signal excitation/generation, signal sensing, and data processing, were implemented to incorporate the Lamb wave method into our existing impedance-based SHM system. Both pitch-and-catch and pulse-and-echo schemes were implemented for damage detection and location, respectively. Through synergetic integration of the two methods, our SHM system can detect various types of simulated damages on aluminum plates.

Citation Download Citation

Jeong Ki kim, Dao Zhou, Dong Sam Ha, and Daniel Inman "A practical system approach for fully autonomous multi-dimensional structural health monitoring", Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 72921L (30 March 2009); https://doi.org/10.1117/12.816289

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