Contact modeling and performance evaluation of ring type traveling wave ultrasonic motors considering stator teeth

Ultrasonics ◽  
2021 ◽  
pp. 106518
Author(s):  
Chunrong Jiang ◽  
Xinyu Wu ◽  
Danhong Lu ◽  
Zhike Xu ◽  
Long Jin
Keyword(s):  
Performance Evaluation ◽  
Traveling Wave ◽  
Contact Modeling ◽  
Ring Type ◽  
Ultrasonic Motors ◽  
And Performance

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

Investigation on the traveling wave and three-dimensional trajectory of motion on the stator of rotational ultrasonic motors

2020 ◽  
Vol 64 (1-4) ◽  
pp. 631-638
Author(s):  
Hucheng Chen ◽  
Wei Han ◽  
Jinhao Qiu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Traveling Wave ◽  
Dimensional Space ◽  
Computational Cost ◽  
Three Dimensional ◽  
Element Model ◽  
Input Voltage ◽  
Ultrasonic Motors ◽  
And Performance

Better understanding of the characteristics of the traveling wave and three-dimensional trajectory related to motion on the surface of the stator is very important for the design and performance improvement of the ultrasonic motors. In this paper, an accurate finite element model of a single stator with a fully coupled piezoelectric layer was established at a moderate computational cost. The finite element model was verified by experimental test at the inverse resonance point. Based on this model, the traveling wave and three-dimensional trajectory of stator surface, including the influence of the input voltage on the phase and amplitude of the displacements in three directions, are investigated. The results show that the trajectory of particles on the stator surface is an ellipse in three-dimensional space due to the phase differences between the three components of displacement in the radial, circumferential and axial directions. The amplitude of radial displacement is about 39.5% of that in the circumferential displacement, which should not be neglected.

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