Finite-element simulation of transient heat response in ultrasonic transducers
Abstract
The application of the finite-element method to a transient heat response problem in electrostrictive ultrasonic transducers during their pulsed operation is described. The temperature and thermal stress distribution are of practical importance for the design of the ultrasonic transducers when they are operated at intense levels. Mechanical vibratory loss is responsible for heat in the elastic parts while dielectric loss in the ferroelectric parts. A finite-element computer model is proposed for the temperature change evaluation in the transducers with time. Natural and forced cooling convection and heat radiation from the transducers' boundaries are included. Simulation is made for Langevin-type transducer models, for which comparison is made with experimental data.
- Publication:
-
IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control
- Pub Date:
- May 1992
- Bibcode:
- 1992ITUFF..39..432A
- Keywords:
-
- Finite Element Method;
- Thermal Stresses;
- Transducers;
- Transient Heating;
- Convective Heat Transfer;
- Electrostriction;
- Radiative Heat Transfer;
- Stress Distribution;
- Ultrasonic Tests;
- Vibratory Loads;
- Instrumentation and Photography