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Updated: Aug 17, 2026

A Polymer-based Piezoelectric Vibration Energy Harvester with a 3D Meshed-Core Structure
Published on: February 20, 2019
Finite element modelling of a rotating piezoelectric ultrasonic motor
A Frangi1, A Corigliano, M Binci
1Dipartimento di Ingegneria Strutturale, Politecnico di Milano, P.za. L. da Vinci 32, 20133 Milano, Italy. attilio.frangi@polimi.it
Abstract:
The evaluation of the performance of ultrasonic motors as a function of input parameters such as the driving frequency, voltage input and pre-load on the rotor is of key importance to their development and is here addressed by means of a finite element three-dimensional model. First the stator is simulated as a fully deformable elastic body and the travelling wave dynamics is accurately reproduced; secondly the interaction through contact between the stator and the rotor is accounted for by assuming that the rotor behaves as a rigid surface. Numerical results for the whole motor are finally compared to available experimental data.
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