The piezoelectric impedance/admittance-based damage detection has been recognized to be sensitive to small-sized damage due to its high frequency measurement capability. Recently, a new class of admittance-based damage detection schemes has been proposed, in which the piezoelectric transducer is integrated with a tunable inductive circuitry. The present research focuses on exploiting the tunable nature of the piezoelectric admittance sensor for the effective identification of damage. In particular, we incorporate the Bayesian inference network into the damage detection process which can intelligently guide the accurate identification of damage location and severity by taking full advantage of the baseline model and measurement as well as the online measurement. As the tunable sensor can provide greatly enriched measurement information, the Bayesian inference can adequately utilize such information and furthermore directly and continuously update the structural model until the model prediction matches with the measurement results. This new approach takes into account the model uncertainty, measurement error, and incompleteness of measurements. Extensive numerical analyses and experimental studies are carried out on a panel structure for methodology demonstration and validation.
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ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 8–10, 2014
Newport, Rhode Island, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4614-8
PROCEEDINGS PAPER
Adaptive Damage Detection Using Tunable Piezoelectric Admittance Sensor and Intelligent Inference Available to Purchase
K. Zhou
University of Connecticut, Storrs, CT
Q. Shuai
University of Connecticut, Storrs, CT
J. Tang
University of Connecticut, Storrs, CT
Paper No:
SMASIS2014-7624, V001T05A007; 9 pages
Published Online:
December 8, 2014
Citation
Zhou, K, Shuai, Q, & Tang, J. "Adaptive Damage Detection Using Tunable Piezoelectric Admittance Sensor and Intelligent Inference." Proceedings of the ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation. Newport, Rhode Island, USA. September 8–10, 2014. V001T05A007. ASME. https://doi.org/10.1115/SMASIS2014-7624
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