Effect of rotor elasticity on driving characteristics of the ultrasonic motors
Conference: ACTUATOR 2022 - International Conference and Exhibition on New Actuator Systems and Applications
06/29/2022 - 06/30/2022 at Mannheim
Proceedings: GMM-Fb. 101: ACTUATOR 2022
Pages: 4Language: englishTyp: PDF
Authors:
Sasamura, Tatsuki; Mustafa, Abdullah; Miyake, Susumu (Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan)
Sashida, Norio (SHINSEI CORPORATION, Tokyo, Japan)
Morita, Takeshi (Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan & Graduate School of Engineering, The University of Tokyo, Tokyo, Japan)
Abstract:
Low efficiency and a short lifetime are severe problems for ultrasonic motors, caused by frictional loss and abrasion. To overcome these shortcomings, we focused on the elasticity of the rotor. First, we theoretically analyzed driving characteristics, such as rotation speed and driving efficiency, using a frictional contact and equivalent circuit models. Accord-ing to these simulations, the elasticity of the rotor can modify driving characteristics such as rotation speed and efficiency. To confirm this result, experimental measurements with four manufactured rotors were carried out, and we obtained measurement results that agreed with the simulation.