A NOVEL HIGH-SPEED ROTARY ULTRASONIC MICRO MOTOR
In this paper, a high-speed rotary ultrasonic motor based on out-of-plane flexural vibration mode is proposed, fabricated and characterized.This motor consists of one tapered rotor and one metal disk shaped stator.There are four piezoelectric plates bonded to the bottom face of the metal disk for exciting the stators out-of-plane flexural vibration mode.The shaft is used to amplify the vibration amplitude of the metal disk.The rotor pressed on the conical surface of the shaft can be driven to rot ate by the traveling wave propagation via the contact friction force.The preload between the stator and rotor is applied by one nut screwed to the solid shaft.The stator has a diameter of 22mm and weight of 13 gram.Experimental results show that the proposed motor can rotate at the maximum value of 7000 rpm applied with the driving voltage of 350 Vp-p.
Ultrasonic motor Piezoelectric Traveling wave Flexural vibration mode
Le WANG Kang-dong ZHAO Hui SHEN Zhi-wen WANG Chun-sheng ZHAO Xiao-long LU
State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics a State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics a
国际会议
哈尔滨
英文
283-285
2019-01-11（万方平台首次上网日期，不代表论文的发表时间）