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http://dx.doi.org/10.5050/KSNVN.2008.18.11.1134

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

Lee, Chul-Hee (인하대학교 기계공학부)
Jang, Min-Gyu (인하대학교 대학원 기계공학부)
Choi, Seung-Bok (인하대학교 기계공학부)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.18, no.11, 2008 , pp. 1134-1142 More about this Journal
Abstract
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.
Keywords
Micro-positioning; Friction Control; Piezo Stack Actuator; Smart Structure; Static Friction Model; Displacement Amplifier;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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