Title :
Ring-type traveling wave ultrasonic motor using a radial bending mode [Correspondence]
Author :
Weishan Chen ; Yingxiang Liu ; XiaoHui Yang ; Junkao Liu
Author_Institution :
Harbin Inst. of Technol., Harbin, China
Abstract :
A traveling wave ultrasonic motor utilizing a radial bending mode of a thick ring is proposed. Twenty PZT stacks and 20 block springs are nested alternately into 40 slots cut in the ring´s outer surface to produce a traveling wave. The prototype achieves maximum speed and torque of 146 r/min and 1.0 N·m, respectively.
Keywords :
bending; stators; ultrasonic motors; PZT stacks; block springs; radial bending mode; ring type traveling wave ultrasonic motor; thick ring stator; Acoustics; Couplings; Springs; Stators; Torque; Transducers; Vibrations;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2014.6689788
