title: A finite volume method and experimental study of a stator of a piezoelectric traveling wave rotary ultrasonic motor.
abstract: Piezoelectric traveling wave rotary ultrasonic motors are motors that generate torque by using the friction force between a piezoelectric composite ring (or disk-shaped stator) and a metallic ring (or disk-shaped rotor) when a traveling wave is excited in the stator. The motor speed is proportional to the amplitude of the traveling wave and, in order to obtain large amplitudes, the stator is excited at frequencies close to its resonance frequency. This paper presents a non-empirical partial differential equations model for the stator, which is discretized using the finite volume method. The fundamental frequency of the discretized model is computed and compared to the experimentally-measured operating frequency of the stator of Shinsei USR60 piezoelectric motor.
authors.affiliation: University of Texas at El Paso, Department of Electrical and Computer Engineering, 500 W. University Ave., El Paso, TX 79968, USA. Electronic address: vbolborici@utep.edu.
authors.forename: V
authors.initials: V
authors.lastname: Bolborici
authors.affiliation: University of Toronto, Department of Electrical and Computer Engineering, Toronto, ON M5S 3G4, Canada. Electronic address: dawson@ele.utoronto.ca.
authors.forename: F P
authors.initials: FP
authors.lastname: Dawson
authors.affiliation: University of Toronto, Department of Mathematics, Toronto, ON M5S 2E4, Canada. Electronic address: mpugh@math.utoronto.ca.
authors.forename: M C
authors.initials: MC
authors.lastname: Pugh
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D008962:Models, Theoretical; D012399:Rotation; D013016:Sound; D014159:Transducers
keywords: Eigenfrequency; Motor; Piezoelectric; Stator; Ultrasonic