Position control method for ultrasonic motors based on beat traveling wave theory

Release time:2024-12-26  Hits:

• Impact Factor:4.2
• DOI number:10.1016/j.ultras.2022.106793
• 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:Ultrasonics
• Key Words:Ultrasonic motor Beat traveling wave ADINA Position control DDS device Open-loop Flexible impact
• Abstract:Focusing on the application demand of ultrasonic motors in the field of space laser communication, a position control method is proposed in this study. Unlike other existing localization methods, this method is based on beat traveling wave theory, which possesses a particular performance in ultrasonic motors. In order to make the speed predictably drop to zero, the frequency difference of the two-phase drive signals is changed during normal operation. This motor deceleration stage is used to establish the positioning scheme. According to this scheme, the finite element analysis with commercial software ADINA is utilized to study the positioning characteristics and support the feasibility, adding details to the scheme. An experimental setup that depends on a DDS signal generator is built to validate this method. The data proves that it can achieve effective average results of about 15 arc-sec under open-loop control at low speed and fluctuate within 0.5 mrad, which can meet the requirement for engineering. Compared to conventional position control methods, it has attractive features of short positioning time, noiseless operation and simple control. This method provides selectivity for engineering applications of ultrasonic motors.
• Indexed by:Journal paper
• Discipline:Engineering
• Document Type:J
• Volume:125
• Page Number:106793
• Translation or Not:no
• Date of Publication:2022-01-01
• Included Journals:SCIE、EI、SCI
• Co-author:Huan, Yongjie,Ren, Weihao,Ma, Chengcheng,Tang, Siyu,Hu, Xiaobin
• First Author:Yang, Lin

• 1.1-Position control method for ultrasonic motors based on beat traveling.pdf