Improving efficiency of traveling wave rotary ultrasonic motor by optimizing stator

Release time:2024-12-26  Hits:

• Impact Factor:1.6
• DOI number:10.1063/1.5088804
• Affiliation of Author(s):南京航空航天大学
• Teaching and Research Group:航空学院-精密驱动与控制研究所
• Journal:Review of scientific instruments
• Key Words:Chamfering Computer simulation Efficiency Energy dissipation Sliding Stators Traveling waves
• Abstract:The application of ultrasonic motor (USM) has been seriously restricted by its relatively low efficiency. The energy loss caused by the radial sliding on the contact surface of the motor is considered as one of the major reasons for the low efficiency of USM. In this report, the solution is proposed to reduce the radial sliding by optimizing the stator comb-teeth of the traveling wave rotary ultrasonic motor (TWUSM). Theoretical analysis, simulation, and experiments were conducted in PMR60 type TWUSM (motor model) to verify the optimized method. The results indicate that the friction angle α, which represents the degree of radial sliding, can be efficiently reduced by chamfering the teeth on the stator of motor. The maximum efficiency of 44.3% is obtained in the modified5 motor of which the stator chamfer size is 1.0 mm × 45°, which is nearly two times higher than that of the nonmodified motor (25%). Therefore, it is a feasible and simple pathway to improve the efficiency of the USM.
• Indexed by:Journal paper
• Discipline:Engineering
• Document Type:J
• Volume:90
• Issue:5
• Translation or Not:no
• Date of Publication:2019-01-01
• Included Journals:EI、SCI、SCIE
• Co-author:Ma, Chengcheng,Ren, Weihao,Zhao, Chunsheng,Wang, Feng
• First Author:Zhang, Jiaojiao
• Correspondence Author:Yang, Lin

• 1.Improving efficiency of traveling wave rotary ultrasonic motor by optimizing stator.pdf