Radiation and scattering analysis of piezoelectric transducers using finite and infinite wave envelope elements

Jaehwan Kim; Eunmi Jung; Seung-Bok Choi

doi:10.1117/12.475211

10 July 2002 Radiation and scattering analysis of piezoelectric transducers using finite and infinite wave envelope elements

Jaehwan Kim, Eunmi Jung, Seung-Bok Choi

Author Affiliations +

Proceedings Volume 4693, Smart Structures and Materials 2002: Modeling, Signal Processing, and Control; (2002) https://doi.org/10.1117/12.475211
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

This paper presents a numerical modeling technique of piezoelectric transducers by taking into account wave radiation and scattering. It is based on the finite element modeling. Coupling problems between piezoelectric and elastic materials as well as fluid and structure systems associated with the modeling of piezoelectric underwater acoustic sensors are formulated. In the finite element modeling of unbounded acoustic fluid, IWEE (Infinite Wave Envelop Element) is adopted to take into account the infinite domain. The IWEE code is added to an in-house finite element program, and commercial pre and post-processor are used for mesh generation and to see the output. The validation of the numerical modeling is proved through an example, and scattering and radiation analysis of Tonpilz transducer is performed. The scattered wave on the sensor is calculated, and the sensor response, so called RVS (Receiving Voltage Sensitivity) is predicted.

Citation Download Citation

Jaehwan Kim, Eunmi Jung, and Seung-Bok Choi "Radiation and scattering analysis of piezoelectric transducers using finite and infinite wave envelope elements", Proc. SPIE 4693, Smart Structures and Materials 2002: Modeling, Signal Processing, and Control, (10 July 2002); https://doi.org/10.1117/12.475211

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