Arbitrary variable thickness annular piezoelectric ultrasonic transducer based on transfer matrix method
نویسندگان
چکیده
The variable thickness annular radial piezoelectric ultrasonic transducer can realize impedance transformation and energy concentration, has the advantages of large radiation area full directivity, is widely used in power ultrasound, underwater acoustic other fields. Because solving complex metal ring vibration wave equation more difficult, this paper, rings with transformed into superposition vibrations N equal by using transfer matrix method. equivalent circuit diagram, resonance frequency expression displacement amplification coefficient thin arbitrary are obtained. relationship between geometric size cone, function, exponential catenary analyzed. On basis, which composed a derived. In order to verify correctness theoretical results, finite element software simulation, numerical solutions first second coefficients good agreement solutions. universal solution given, provides guidance for designing optimizing transducers.
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ژورنال
عنوان ژورنال: Chinese Physics
سال: 2023
ISSN: ['1000-3290']
DOI: https://doi.org/10.7498/aps.72.20222110