抄録
In this paper, ultrasound heating of axisymmetric body is investigated numerically. First ultrasound source due to piezoelectric device(PZT) is directly simulated by solving electrochemical coupling of the piezoelectric device. Secondly pressure acoustic sound field generated by the piezoelectric device is solved based on pressure acoustic field equation, and fluid-structure interaction of the pressure field and an elastic body with mechanical loss is solved. These are solved in frequency domain. Time dependent heat equation is solved with the heat source which was obtained by the above mentioned frequency domain analysis. It was found that the top shape of piezoelectric device and body configuration affects the resulting distribution of ultrasound field and temperature increase within the body.
