Analytical modelling of the multiceli piezoelectric motor based on three resonance actuators

Abstract

This paper presents analytical model of the multicell piezoelectric motor. The results, obtained in the field of piezoelectric motors, have pointed out that these motors have potentially high possibilities in the future of special applications. The studied multicell piezoelectric motor have a stator using three rotating mode actuators. A theoretical analysis of operating principle of the rotating mode motor has been described. Additionally the stator/rotor friction contact has been considered. Using the analytical model some electromechanical characteristics of the considered multicell piezoelectric motor have been computed. Finally, computed and measured characteristics have been compared.

Design Evolution of the Ultrasonic Piezoelectric Motor Using Three Rotating Mode Actuators

“…The MPM was introduced for the first time in a conference paper [30] where the principle and basic laboratory tests have been presented. In parallel, the analytical study has been carried out and described in [31]. The work on first MPM revision (MPM basic) has been summarized in [29] and an extended version (with updated prototype) has been reported in [32].…”

“…The PZTs used in the actuators have an internal diameter of 5 mm and thickness of 0.5 mm. The contact surface between the rotor and the stator has been modified compared to the previous prototypes [31]. The MPM No.…”

“…Content may change prior to final publication. Based on calculations described in [29], [31], [32] a torque versus speed analytical characteristic has been determined. The MPM geometrical parameters mentioned in chapter 2 were used.…”