Models for the Electro-Mechanical Interaction of the Stator of a Piezoelectric Ultrasonic Motor and its Power Supply

authored by

J. W. Krome, J. Maas, J. Wallaschek

Abstract

Piezoelectric ultrasonic motors usually are operated in the vicinity of a resonance of the mechanical oscillations of the stator. The stator is exited by ultrasonic, high-voltage signals provided by the power supply. In order to achieve a good power flow into the motor, the electrical system has to be tuned to the mechanical system. Often the electrical power supply is designed as a two-phase inverter using a series inductor in each branch, such that a resonant converter topology is achieved. If additionally the inductance is matched to the capacitance of the piezoceramics an optimal electro-mechanical coupling results. Mathematical models of the stator, which were obtained by the finite-element method and models of the power supply have been implemented using the multilevel simulator SABER and were used to optimize the overall system behavior.

External Organisation(s)

Paderborn University

Type

Article

Journal

ZAMM Zeitschrift fur Angewandte Mathematik und Mechanik

Volume

76

Pages

357-360

No. of pages

4

ISSN

0044-2267

Publication date

1996

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Computational Mechanics, Applied Mathematics

Electronic version(s)

https://doi.org/10.1002/zamm.19960761428 (Access: Closed)