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Dynamic response analysis of the two stators hybrid transducer type piezoelectric ultrasonic motor using finite element simulation
Author(s) -
Nantawatana Weerayuth,
Seemann Wolfgang
Publication year - 2008
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200810393
Subject(s) - ultrasonic motor , stator , piezoelectricity , acoustics , finite element method , transducer , laser doppler vibrometer , piezoelectric motor , displacement (psychology) , ultrasonic sensor , electrical impedance , engineering , structural engineering , mechanical engineering , physics , electrical engineering , laser , optics , psychology , distributed feedback laser , psychotherapist
This paper presents the finite element simulation with an aim to analyse the dynamic response of the two stators hybrid transducer type piezoelectric ultrasonic motor. The three dimensional–model which includes the effects of piezoelectric coupling are formulated. The dynamic behaviours of a motor stator are calculated and later compared to the experimental results measured from the prototype of this motor. The impedance characteristic of the complete stator is validated using HP4294A precision impedance analyzer. In addition to the electrical measurements, the mechanical displacement and the mechanical velocity of the stator are measured directly using a single point laser Doppler vibrometer. This is to verify that finite element modelling is an appropriate approach to analyse the dynamic behaviour of this piezoelectric ultrasonic motor. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)