On a rational approach to calculating the piezoelectric transducer damper. Part 2. Selection of the optimal shape of the damper

Purpose of the work. Conducting a comprehensive study to determine the optimal shape of the piezoelectric transducer damper, from the point of view of minimizing parasitic signals. Materials and methods. The efficiency of employing dampers with diverse geometries was assessed through computational analysis employing the finite element method, which was then validated against experimental findings. Results. A research on the efficiency of different types of dampers, including a truncated cylinder and a fully truncated cylinder, is presented. To achieve this, the model developed in the initial phase of the study was further refined and applied to calculate the shapes of the dampers other than the truncated cone. The analysis of ultrasonic wavefronts within the body of the damper is performed to identify the source of minor signal fluctuations in the case of a fully truncated cylinder-shaped damper. Conclusion. The theoretical framework outlined in the initial section of this paper has been successfully implemented to assess the performance of different shapes of dampers. The analysis of the data yielded insights into the most efficient design for minimizing the amplitude of the unwanted signal. A satisfactory degree of consistency was observed across the various approaches employed.

Authors: M. S. Vechera, S. I. Konovalov, R. S. Konovalov, V. V. Shemetova, V. M. Tsaplev

Direction: Physics

Keywords: non-destructive testing, piezoelectric transducer, damper, modeling, finite element method

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