Operation Mechanism and Characteristic of Spherical Two Degree-of-Freedom Traveling-Wave Type Ultrasonic Motor
Fu Ping1, Guo Jifeng2, Shen Runjie2, Shuai Guangju3, Cai Ping1
1. Minjiang University Fuzhou 350108 China 2. Zhejiang University Hangzhou 310027 China 3. Zhejiang Wanma Group Electron Co., LTD Hangzhou 311300 China
Abstract：Two degree-of-freedom (2 DOF) spherical traveling wave type ultrasonic motor is a kind of multi degree-of-freedom ultrasonic motor. In order to obtain its motion rule, the driving principle and basic structure of 2 DOF spherical ultrasonic motor are firstly introduced. Through discussing position relation of rotor and stators of spherical ultrasonic motor, driving force is to be calculated. Then driving torque could also be given out. When the rotor is at rest or rotates, driving torque could be derived respectively. From the above discussion, the driving torque and friction torque of 2 DOF spherical traveling wave type ultrasonic motor could be set up. By simulation of structure parameters, driving torque and friction torque can be calculated preliminarily. Then through experiments the driving torque is to be verified, results are used for designing theory and performance improvement of 2 DOF spherical traveling type ultrasonic motor.
傅平, 郭吉丰, 沈润杰, 帅光举, 蔡萍. 球形二自由度超声波电机的运行机理和特性[J]. 电工技术学报, 2009, 24(4): 42-47.
Fu Ping, Guo Jifeng, Shen Runjie, Shuai Guangju, Cai Ping. Operation Mechanism and Characteristic of Spherical Two Degree-of-Freedom Traveling-Wave Type Ultrasonic Motor. Transactions of China Electrotechnical Society, 2009, 24(4): 42-47.
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2009, Vol. 24 
