Principle and Experimental Verification of Novel Dual Driving Face Rotary Ultrasonic Motor

作     者：LU Xiaolong HU Junhui YANG Lin ZHAO Chunsheng 

作者机构：State Key Laboratory of Mechanics and Control of Mechanical StructuresNanjing University of Aeronautics and Astronautics 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2013年第26卷第5期

页      面：1006-1012页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

基　　金：supported by National Natural Science Foundation of China(Grant Nos.51205203 51275228 51075212 91123020) Science and Research Foudotion Nanjing University of Aeronautics and Astronautics(Grant Nos.56YAH12015 NZ2010002 S0896-013) Innovation and Entrepreneurship Program of Jiangsu and Priority Academic Program Development of Jiangsu Higher Education Institutions 

主　　题：ultrasonic motor piezoelectric transducer dual driving face in-plane flexural vibration mode 

摘      要：Existing rotary ultrasonic motors operating in extreme environments cannot meet the requirements of good environmental adaptability and compact structure at same time,and existing ultrasonic motors with Langevin transducers show better environmental adaptability,but size of these motors are usually big due to the radial arrangement of the Langevin transducers.A novel dual driving face rotary ultrasonic motor is proposed,and its working principle is experimentally *** working principle of the novel ultrasonic motor is firstly *** 5th in-plane flexural vibration travelling wave,excited by the Langevin transducers around the stator ring,is used to drive the *** the finite element method is used in the determination of dimensions of the prototype motor,and the confirmation of its working *** that,a laser Doppler vibrometer system is used for measuring the resonance frequency and vibration amplitude of the *** last,output characteristics of the prototype motor are measured,environmental adaptability is tested and performance for driving a metal ball is also *** room temperature and 200 V(zero to peak) driving voltage,the motor’s no-load speed is 80 r/min,the stalling torque is 0.35 N·m and the maximum output power is 0.85 *** response time of this motor is 0.96 ms at the room temperature,and it decreases or increases little in cold environment.A metal ball driven by the motor can rotate at 210 r/min with the driving voltage 300 V(zero to peak).Results indicate that the prototype motor has a large output torque and good environmental adaptability.A rotary ultrasonic motor owning compact structure and good environmental adaptability is proposed,and lays the foundations of ultrasonic motors’ applications in extreme environments.