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http://dx.doi.org/10.5139/JKSAS.2010.38.9.882

Performance Investigation of Semi-Active Control Logic to Minimize a Pointing Performance Degradation of On-Board Payload by Chattering Effects  

Oh, Hyun-Ung (국방과학연구소 영상정보체계개발단)
Choi, Young-Jun (국방과학연구소 영상정보체계개발단)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.38, no.9, 2010 , pp. 882-889 More about this Journal
Abstract
Semi-active vibration control is one of the attractive control methods for space application due to its robustness as passive damping system and much higher damping performance than passive system. However, a chattering induced by the sudden variation of damping force at the time of On-Off switching of semi-active control device degrades pointing performance of the on-board payload. In this paper, to enhance the pointing performance of the on-board payload, we proposed a semi-active vibration isolation with a strategy for attenuating chattering effect. Numerical simulation results using simplified analysis model indicated that the proposed semi-active control strategy produced much better isolation performance than the conventional Bang-Bang control semi-active control laws derived from skyhook and LQ theories.
Keywords
Semi-Active Control; Variable Damping; Pointing Performance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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