At the Centre de Transfert des Microtechniques, CTM in Besançon, France, a micro-piezo-electric motor based on the principle of travelling waves is developed, at a diameter of 4mm. Due to its architecture and a mechanical amplification, this motor is also called butterfly motor.

The matter of investigation for the finite element (FE) analysis was the stator of two different designs of a piezoelectric motor employing the travelling wave principle. For this sake the software package ATILA by CEDRAT-Recherche has been used. In particular, the harmonic analysis feature was employed in order to find the values for certain eigen frequencies, maximal displacements and the respective quality factors.

For any further information please contact Roland Duffait.