Contact modeling for control design of traveling wave ultrasonic motors

2020 ◽  
Vol 310 ◽  
pp. 112037 ◽  
Author(s):  
Yuanfei Zhu ◽  
Tianyue Yang ◽  
Zhiwei Fang ◽  
Li Shiyang ◽  
Lu Cunyue ◽  
...  
Keyword(s):  
Traveling Wave ◽  
Control Design ◽  
Contact Modeling ◽  
Ultrasonic Motors

A contact model of traveling-wave ultrasonic motors considering preload and load torque effects

2018 ◽  
Vol 56 (2) ◽  
pp. 151-164 ◽  
Author(s):  
Jinbang Li ◽  
Shuo Liu ◽  
Jianjun Qu ◽  
Yuguo Cui ◽  
Yang Liu
Keyword(s):  
Traveling Wave ◽  
Contact Model ◽  
Load Torque ◽  
Ultrasonic Motors

Contact Mechanics of Traveling Wave Ultrasonic Motors

2013 ◽  
Vol 49 (6) ◽  
pp. 2634-2637 ◽  
Author(s):  
Shengnan Shen ◽  
Heow Pueh Lee ◽  
Siak Piang Lim ◽  
Chong Jin Ong
Keyword(s):  
Contact Mechanics ◽  
Traveling Wave ◽  
Ultrasonic Motors

The Contact Problem in Ultrasonic Traveling-Wave Motors

2010 ◽  
Vol 77 (3) ◽  
Author(s):  
Thomas Sattel ◽  
Peter Hagedorn ◽  
Joachim Schmidt
Keyword(s):  
Contact Problem ◽  
Traveling Wave ◽  
Nonlinear Resonance ◽  
Contact Layer ◽  
Operating Conditions ◽  
Wave Type ◽  
Stick Slip ◽  
Ultrasonic Motors ◽  
Contact Mechanism ◽  
Planar Contact

In this paper the contact mechanism between stator and rotor will be considered in detail, which plays a key role in ultrasonic motors. A planar contact model for the stator-rotor interaction in traveling-wave type ultrasonic motors is derived, including rotor flexibility and differenciating between stick and slip regions in the contact zones. The model analysis shows that depending on the motor’s operating conditions, complicated contact behavior may occur with several stick-slip subzones in each contact zone. The typical nonlinear resonance observed in ultrasonic motors can be explained with the present analysis. Both the stiffness of the contact layer and of the rotor may drastically influence the speed-torque characteristics. The results will contribute to a better understanding of the contact mechanics in ultrasonic motors.

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.

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