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http://dx.doi.org/10.5139/JKSAS.2002.30.8.126

Micro-Vibration Measurement, Analysis and Attenuation Techniques of Reaction Wheel Assembly in Satellite  

Oh, Shi-Hwan (한국항공우주연구원 위성제어연구그룹)
Rhee, Seung-Wu (한국항공우주연구원 위성제어연구그룹)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.8, 2002 , pp. 126-132 More about this Journal
Abstract
Jitter induced from several payloads on-board satellites degrade the performance of pointing accuracy and attenuate the resolving power of highly-precise camera image such as KOMPSAT II. In this paper, we introduce a micro-vibration measurement technique, analysis of dynamic characteristics, and modeling method for a reaction wheel assembly which is one of the major sources of jitter in satellites and an effective vibration reduction techniques are considered. Based on these techniques, vibration measurement and passive control were performed with an micro-vibration generator which was designed to have similar dynamic performances with an actual reaction wheel assembly above 50Hz.
Keywords
Satellite; Micro-Vibration Measurement; Reaction Wheel; Jitter Analysis; Passive Control;
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