Adhesion Theory of Frication Model and Characteristics of Hybrid Transducer Type Ultrasonic Motors
High torque as one important characteristic of longitudinal-torsional hybrid transducertype ultrasonic motor (HTUSM) is mainly caused of discontinuous-surface-connect mode between the stator and the rotor which is different from the many-pointconnect mode of traveling wave motors. Therefore, it is important that one connect friction model is proposed to analyze this connect mode between the stator and the rotor. In this paper, according to the adhesion theory of friction, an advanced equivalent circuit of the motor which contains both the longitudinal vibrator and torsional vibrator is proposed. Based on this model, design method of a longitudinal-torsional hybrid transducer-type ultrasonic motor (HTUSM) aimed at practical uses of the motor is presented. All factors that influence the mechanical characteristics are analyzed, and low-efficient of this type motor is explained. Based on this study, mechanical characteristics of the motor such as the maximum torque, efficiency and the no-load speed and preload are determined.
Ultrasonic motor Adhesion theory of friction Mechanical characteristics
Mingwei Sheng Weishan Chen Junkao Liu Shengjun Shi
State Key Laboratory of Robotics and System,Harbin Institute of Technology,92 West Da-Zhi Street Harbin,150001,China
国际会议
西安
英文
57-62
2009-08-23（万方平台首次上网日期，不代表论文的发表时间）