Inducing nonlinear dynamic response via piezoelectric circuitry integration

J. Xu; J. Tang

doi:10.1117/12.2045226

1 April 2014 Inducing nonlinear dynamic response via piezoelectric circuitry integration

J. Xu, J. Tang

Proceedings Volume 9057, Active and Passive Smart Structures and Integrated Systems 2014; 905718 (2014) https://doi.org/10.1117/12.2045226
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

Owing to the two-way electro-mechanical coupling characteristics, piezoelectric transducers have been widely used as sensors and actuators in sensing and control applications. In this research, we explore the integration of piezoelectric transducer with the structure, in which the transducer is connected with a Wheatstone bridge based circuitry subjected to chaotic excitation. It is shown that a type of Wheatstone bridge circuit with proper parameters configuration can increase sensitivity in detecting structural anomaly. Such integration has the potential to significantly amplify the response change when the underlying structure is subject to property change. Comprehensive analytical and experimental studies are carried out to demonstrate the concept and validate the performance improvement.

Citation Download Citation

J. Xu and J. Tang "Inducing nonlinear dynamic response via piezoelectric circuitry integration", Proc. SPIE 9057, Active and Passive Smart Structures and Integrated Systems 2014, 905718 (1 April 2014); https://doi.org/10.1117/12.2045226

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