Development of an Ultrasonic Motor Based on a Piezoelectric Ceramic Sandwiched between Two Laminate Composite Plates

A. Basílio; Rui Igreja; Paulo Inácio; C.J. Dias; José N. Marat-Mendes

doi:10.4028/www.scientific.net/MSF.514-516.221

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HomeMaterials Science ForumMaterials Science Forum Vols. 514-516Development of an Ultrasonic Motor Based on a...

Development of an Ultrasonic Motor Based on a Piezoelectric Ceramic Sandwiched between Two Laminate Composite Plates

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 45º and -45º 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.

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Periodical:

Materials Science Forum (Volumes 514-516)

Pages:

221-224

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.514-516.221

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Online since:

May 2006

Authors:

A. Basílio, Rui Igreja, Paulo Inácio, C.J. Dias, José N. Marat-Mendes

Keywords:

CFRP Composite, Friction, Piezoelectric Ceramic (PZT), Ultrasonic Motor, Vibration

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