- 향상된 스틱-슬립 마찰 모델을 이용한 스마트 구조물의 마이크로 위치제어
- ㆍ 저자명
- 이철희,장민규,최승복,Lee. Chul-Hee,Jang. Min-Gyu,Choi. Seung-Bok
- ㆍ 간행물명
- 한국소음진동공학회논문집
- ㆍ 권/호정보
- 2008년|18권 11호|pp.1134-1142 (9 pages)
- ㆍ 발행정보
- 한국소음진동공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this paper, a model-based stick-slip compensation for the micro-positioning is proposed using an enhanced stick-slip model based on statistical rough surface contact model. The smart structure is comprised with PZT(lead (Pb) zirconia(Zr) Titanate(Ti)) based stack actuator incorporating with the PID(proportional-integral-derivative) control algorithm, mechanical displacement amplifier and positioning devices. For the stick-slip compensation, the elastic-plastic static friction model is used considering the elastic-plastic asperity contact in the rough surfaces statistically. Mathematical model of system for the positioning apparatus was derived from the dynamic behaviors of structural parts. PID feedback control algorithms with the developed stick-slip model as well as feedforward friction compensator are formulated for achieving the accurate positioning performance. Experimental results are provided to show the performances of friction control using the developed positioning apparatus.