Affiliation of Author(s):航空学院
Journal:PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
Key Words:Ultrasonic motor rotor deformation uneven contact structure optimization shell structure
Abstract:The rotor deformation of an ultrasonic motor is an important factor affecting its performance. However, little research focuses on the relationship between the rotor deformation and motor performance. This paper provides an approach to improve the ultrasonic motor's output properties by changing the rotor's size from the view of proper rotor deformation and better stress distribution on the interface. First, a thin shell structure is introduced to study the deformation of the rotor. A finite element model of the motor is built in COMSOL Multiphysics software for the contact analysis of the stress distribution. Then, the optimized ranges of parameters are determined by simulation. Frictional experiments are conducted to verify the feasibility of the rotor under the optimized size. Finally, the performance experiments of a stator corresponding to different sizes of rotor are carried out. The experimental results show that the speed, the power and the efficiency of the optimized rotor are all increase. These results prove the effectivity of the new approach to improving the performance of the ultrasonic motor.
ISSN No.:0954-4062
Translation or Not:no
Date of Publication:2019-10-01
Co-author:Xu, Zhangfan,Di, Sisi,Chen, Lei,chenlei,Huang, Weiqing
Correspondence Author:ps
Associate Professor
Supervisor of Master's Candidates
Gender:Male
Alma Mater:南京航空航天大学
Education Level:南京航空航天大学
Degree:Doctoral Degree in Engineering
School/Department:College of Aerospace Engineering
Discipline:Precision Instrument and Machinery. Mechanical Design and Theory
Business Address:明故宫A9-518
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