20 April 2016 Optimization of ultrasonic transducers for selective guided wave actuation
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Abstract
The application of guided waves using surface-bonded piezoceramic transducers for nondestructive testing (NDT) and Structural Health Monitoring (SHM) have shown great potential. However, due to difficulty in identification of individual wave modes resulting from their dispersive and multi-modal nature, selective mode excitement methods are highly desired. The presented work focuses on an optimization-based approach to design of a piezoelectric transducer for selective guided waves generation. The concept of the presented framework involves a Finite Element Method (FEM) model in the optimization process. The material of the transducer is optimized in topological sense with the aim of tuning piezoelectric properties for actuation of specific guided wave modes.
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Mateusz Miszczynski, Mateusz Miszczynski, Pawel Packo, Pawel Packo, Paulina Zbyrad, Paulina Zbyrad, Tadeusz Stepinski, Tadeusz Stepinski, Tadeusz Uhl, Tadeusz Uhl, Jerzy Lis, Jerzy Lis, Kazimierz Wiatr, Kazimierz Wiatr, "Optimization of ultrasonic transducers for selective guided wave actuation", Proc. SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 98030J (20 April 2016); doi: 10.1117/12.2219548; https://doi.org/10.1117/12.2219548
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