A-novel adjustable pre-pressure ultrasonic motor designed for variable temperature rotational speed environments

• Published in: Precision engineering Vol. 96; pp. 653 - 662
• Main Authors: Liu, Xiaopeng, Wang, Jiru, Yan, Langlang, Mao, Dubang, Tong, Baoshan, Zhao, Hongwei
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.10.2025
• Subjects: Electro-mechanical performance; Flexible rotor; Friction drive; Pre-pressure sensitivity; Ultrasonic motor; Pre-pressure sensitivity; Electro-mechanical performance; Ultrasonic motor; Friction drive; Flexible rotor

The traveling wave ultrasonic motors (TWU-motors), operating based on the friction drive method have the advantages of low speed and large torque, fast response speed, no electromagnetic interference. However, the friction driving effect is very sensitive to the changes of the pre-pressure and frict...