Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2008.11a
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- Pages.192-192
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- 2008
Piezoelectric ultrasonic linear motor by traveling wave
Traveling wave를 이용한 압전 선형 초음파 모터
- Yoon, Jang-Ho (KIST) ;
- Lee, Won-Hee (KIST) ;
- Choi, Woo-Chun (Korea Univ.) ;
- Kang, Chong-Yun (KIST) ;
- Yoon, Seok-Jin (KIST)
- Published : 2008.11.06
Abstract
This paper represents a piezoelectric ultrasonic linear motor by traveling wave. The motor which is composed of two piezo ceramics, elastic body, and connecting tip is driven by the frictional force between the connecting tip and the linear motion guide. longitudinal and flexural vibrations are made by traveling wave which is generated when the ultrasonic electrical signals with 90 degree phase difference are applied to two ceramics. These vibrations contribute to elliptical motion by mixed mode between longitudinal and transverse mode. A linear movement can be easily obtained by using the elliptical motion. In this paper, the piezoelectric actuator has been intensively simulated by using ATILA to achieve an optimized elliptical motion of it. We could get the elliptical motion from actual experiment through the simulated result.
Keywords