Lead free BNT ceramics as driving element in traveling wave type ultrasonic motor

2007 ◽  
Author(s):  
Zuoba Yu ◽  
Ka Cheung Chan ◽  
Jifeng Guo ◽  
J. Y. Dai ◽  
Bo Wang ◽  
...  
Keyword(s):  
Traveling Wave ◽  
Ultrasonic Motor ◽  
Lead Free ◽  
Wave Type

Effects of Ultrasonic Motor Stator Teeth Height on Start Reliability

2015 ◽  
Vol 0 (0) ◽  
Author(s):  
Wei Zheng ◽  
Jing-Liang Zhou ◽  
Yu-Zhen Ruan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Traveling Wave ◽  
Ultrasonic Motor ◽  
Wave Type ◽  
Element Analysis ◽  
Factors Affecting ◽  
Ultrasonic Motors ◽  
Wide Range ◽  
New Type

AbstractAs a new type of motor, the traveling wave type rotary ultrasonic motors (TRUM) have a wide range of applications. However, the friction between stator and rotor leads to its poor start reliability, which retards the progress of application of ultrasonic motors. Sometimes TRUMs which are widely used cannot start after storage. Height of tooth of the ultrasonic motor’s stator is one of the factors affecting TRUM’s start stabilizing. In this paper, combined with the ultrasonic motor running mechanism, the factors that affect TRUM’s start reliability are studied. Model of ultrasonic motor stator tooth height is analyzed by finite element analysis (FEA). Five TRUMs with different tooth heights are fabricated and measured. A TRUM with 1.85 mm tooth height can start properly in humidity 90%, but ultrasonic motors with 1.8–1.9 mm tooth height cannot start properly under the same conditions.

515 Study on Speed Fluctuation of a Traveling Wave Type Ultrasonic Motor

2001 ◽  
Vol 2001.38 (0) ◽  
pp. 161-162
Author(s):  
Akihiro KIMURA ◽  
Yasuhide KOBAYASHI ◽  
Shigeo YANABE
Keyword(s):  
Traveling Wave ◽  
Ultrasonic Motor ◽  
Wave Type ◽  
Speed Fluctuation

Study on Large Torque Pressure-Equalizing Traveling Wave Type Ultrasonic Motor

2007 ◽  
Author(s):  
Mo Yueping ◽  
Duan Xiaohui ◽  
Hu Minqiang ◽  
Jin Long
Keyword(s):  
Traveling Wave ◽  
Ultrasonic Motor ◽  
Wave Type
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