Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2003.07b
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- Pages.681-684
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- 2003
The FEA of the Travelling-wave Ultrasonic Motor
진행파형 초음파 모터의 유한요소해석
- Kim, Sung-Hyun (Changwon National Univ.) ;
- Park, Tae-Gone (Changwon National Univ.)
- Published : 2003.07.10
Abstract
Piezoelectric motors have been successfully developed for various applications like autofocus drives in camera lenses and handling equipment for high-accuracy positioning. In this paper, the travelling-wave motor which used in the camera lense, using bending vibration of a ring was studied. The basic structure of the motor is same but we suggested a few parameters for considering their design. The parameter is different from sine and cosine region of the voltage of the ceramic surface, displacement according to the wave number difference, and the phase difference. Same size of ceramics and aluminium ring were used for the stator. As a result, the displacement is dependent on the wave number.