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Structural Health Monitoring with Piezoelectric Wafer Active Sensors, 2nd Edition by Victor Giurgiutiu

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Chapter 9

PWAS Resonators

This chapter discusses PWAS resonators. The chapter starts with linear PWAS resonators for which a detailed 1-D analysis is performed for both mechanical and electrical responses. The associated resonances are identified. Closed-form solutions are derived for the electromechanical (E/M) impedance and admittance and compared with experiments. The circular PWAS resonators are discussed next; a detailed 2-D analysis of the mechanical and electrical responses is performed in cylindrical coordinates. Axisymmetric closed-form solutions are derived in terms of Bessel functions. The associated resonances of a circular PWAS resonator are identified. Formulae for the E/M impedance and admittance of circular PWAS resonators ...

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