대칭-비대칭 공진모드를 이용한 초음파 리니어 모터의 구동특성 연구

다국어 초록 (Multilingual Abstract)

Transducer for ultrasonic linear motor with the symmetric and anti-symmetric modes was studied. The ultrasonic linear motor consists of two Langevin type piezoelectric vibrators that cross at right angles with each other in tip. In order to excite symmetric and anti-symmetric resonance modes, the transducer must have a phase shift of 90 degree in space and time. Therefore, the tip of transducer moves on an elliptical motion. In this paper, the finite element analysis was used to optimize dimension and displacement of the transducer. The ultrasonic motor was fabricated using the simulated result and the driving characteristics were measured. No-load velocity was 0.28[㎧] and the maximum efficiency was 30[%] in resonance frequency.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 본론
• 3. 실험결과 및 고찰
• 4. 결론
• 참고문헌
• 저자소개

참고문헌 (Reference)

1 태성에스엔이 FEA사업부, "유한요소해석 입문과 선형해석" 태성에스엔이 537-628, 2007

2 정현호, "스테이터의 형태에 따른 Cross형 초음파 회전모터의 구동특성" 54C (54C): 433-437, 2005

3 이재형, "볼트조임 란쥬반형 진동자를 이요한 모드변환형-단일공진모드 초음파 모터에 관한 연구" 53C (53C): 123-127, 2004

4 Kenhi Mori, "Ultrasonic Linear Motor for a High Precision X-Y stage" 3-6, 1989

5 Minoru Kuribayashi Kurosawa, "Transducer for High Speed and Large Thrust Ultrasonic Linear motor Using Two sandwich-type Vibrators" mi (mi): 1188-1998,

6 김태열, "L1-B4 샌드위치형 진동자를 이용한 선형 초음파 모터의 설계 및 특성" 13 (13): 1025-1031, 2000

7 OXFORD, "An Introduction to Ultrasonic Motors" 1-24, 1993