A Short Ultrasonic Motor Stator with Square Base

Rui Xia Wang; Long Jin; Zhi Ke Xu; Min Qiang Hu

doi:10.4028/www.scientific.net/KEM.562-565.979

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 562-565A Short Ultrasonic Motor Stator with Square Base

A Short Ultrasonic Motor Stator with Square Base

Abstract:

Length and support mode are the key to restrict the ultrasonic motor miniaturization. This paper presents a miniature langevin-type ultrasonic motor stator, it has both short length and simple support mode. With fixed-free ends, the stator adopts a square base and is fixed at its four corners. A new excitation mode is utilized to solve the problem of insistence of excitation position in the conventional excitation mode. Since the stator is unsymmetrical along the circumferential direction, there should be an optimal excitation angle. By using finite element method, axial displacement and radial displacement of nodes are achieved along the outer edge of the upper end of the stator when excitation angle is changed , then the results are analyzed and the conclusion can be reached that 45^o is the optimal excitation angle. Finally, a photo of the stator prototype is presented.

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Periodical:

Key Engineering Materials (Volumes 562-565)

Pages:

979-983

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.562-565.979

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Online since:

July 2013

Authors:

Rui Xia Wang, Long Jin, Zhi Ke Xu, Min Qiang Hu

Keywords:

Excitation Angle, Finite Element Method (FEM), Fixed-Free End, Ultrasonic Motor

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