Methods for Analyzing the Thermal Field of Rod Type Piezoceramic Electroacoustic Transducer

摘要

Methods for the analysis of thermal fields for designs of piezoceramic electroacoustic transducers are considered. The causes of the heating emergence, and the negative consequences caused by the heating of the transducers, are analyzed. The necessity of analyzing the thermal fields of piezoceramic electroacoustic transducers of a rod structure is substantiated. Compared the analytical method for finding a thermal field based on solving the Fourier differential heat equation and computer simulation performed using the finite element method in the computer-aided design system SolidWorks. The solution of the heat conduction equation, which corresponds to the formulated boundary conditions, is obtained by replacing the rod transducers with a system of layers. The numerical calculations of thermal fields by the discussed methods for a typical design of a rod piezoceramic transducer are carried out. It was discovered that modeling of thermal fields is easier to implement, it takes into account structural features of converters and allows you to quickly change the parameters of elements to find the most rational design solution. The obtained results can be used when designing piezoelectric electroacoustic transducers.