Development of an ultrasonic motor based on a piezoelectric ceramic sandwiched between two laminate composite plates

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ultrasonic motors are of great interest since their operation is not affected by a magnetic field. On this work the development of a prototype of a smart ultrasonic motor and its characteristics will be presented. The stator of the motor is formed by a cantilever made of PZT ceramic plate sandwiched between two unidirectional CFRP composite sheets. The composite sheets are oriented to 45° and -45° in the longitudinal direction. By application of a sinusoidal electric field to the piezoelectric ceramic plate, it vibrates. The anisotropy of the CFRP composite sheets induces an expansion/torsion movement. This effect is transformed into rotation by friction. The study of adequate voltages and frequencies of the applied electric field allows the optimization of the rotating motor performance.

Original languageEnglish
Title of host publicationAdvanced Materials Forum III - Proceedings of the 3rd International Materials Symposium 2005 and 12th Encontro da Sociedade Portuguesa de Materiais - SPM
EditorsP. M. Vilarinho
PublisherTrans Tech Publications Ltd
Pages221-224
Number of pages4
EditionPt. 1
ISBN (Print)978-087849402-6
DOIs
Publication statusPublished - 1 Dec 2006
Event3rd International Materials Symposium and 12th Portuguese Materials Society Meeting 2005 - Aveiro, Portugal
Duration: 20 Mar 200523 Mar 2005

Publication series

NameMaterials Science Forum
PublisherTrans Tech Publications Ltd
NumberPART 1
Volume514-516
ISSN (Print)0255-5476

Conference

Conference3rd International Materials Symposium and 12th Portuguese Materials Society Meeting 2005
CountryPortugal
CityAveiro
Period20/03/0523/03/05

Keywords

  • CFRP composite
  • Friction
  • Piezoelectric ceramics
  • Ultrasonic motor
  • Vibration

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