Parametrical optimisation of ultrasonic motors

Jose L Pons*, H. Rodríguez, J. F. Fernández, M. Villegas, F. Seco

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The present paper introduces a new optimisation approach for the stator of travelling wave ultrasonic motors. The optimisation approach is based on a model of the ultrasonic motor that includes stator and rotor models as well as a simplified rotor-stator interface model. The motor model is a parametrical one, thus enabling the selection and optimisation of both the stator geometry and the material parameters. Previous to the optimisation process, the motor model is briefly described and experimentally validated. This validation is performed for both the stator model and the motor model. A set of motor performance indicators (the piezoelectric coupling coefficient, the efficiency, and the output power) are also introduced as objective functions in the optimisation process.

Original languageEnglish (US)
Pages (from-to)169-182
Number of pages14
JournalSensors and Actuators, A: Physical
Volume107
Issue number2
DOIs
StatePublished - Oct 15 2003

Keywords

  • Parametrical optimisation
  • Piezoelectric transducers
  • Ultrasonic motors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

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