한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제18권11호
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  • Pages.1134-1142
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  • 2008
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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향상된 스틱-슬립 마찰 모델을 이용한 스마트 구조물의 마이크로 위치제어

Micro-positioning of a Smart Structure Using an Enhanced Stick-slip Model

  • 이철희 (인하대학교 기계공학부) ;
  • 장민규 (인하대학교 대학원 기계공학부) ;
  • 최승복 (인하대학교 기계공학부)
  • 발행 : 2008.11.20
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초록

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.

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참고문헌

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