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http://dx.doi.org/10.5050/KSNVE.2016.26.4.391

Performance Evaluation of RWA Vibration Isolator Using Notch Filter Control  

Park, Geeyong (Korea Aerospace Industry)
Suh, Jong-Eun (Dept. of Aerospace Engineering, KAIST)
Lee, Dae-Oen (Agency for Defense Development)
Han, Jae-Hung (Dept. of Aerospace Engineering, KAIST)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.26, no.4, 2016 , pp. 391-397 More about this Journal
Abstract
Vibration disturbances induced by the reaction wheels can severely degrade the performance of high precision payloads on board satellites with high pointing stability requirements. The unwanted disturbances produced by the reaction wheels are composed of fundamental harmonic disturbances due to the flywheel imbalance and sub/higher harmonic disturbances due to bearing irregularities, motor imperfections and so on. Because the wheel speed is constantly changed during the operation of a reaction wheel, the vibration disturbance induced by the reaction wheels can magnify the satellite vibration when the rotating frequency of wheel meets the natural frequency of satellite structure. In order to provide an effective isolation of the reaction wheel disturbances, isolation performance of a hybrid vibration isolator is investigated. In this paper, hybrid vibration isolator that combines passive and active components is developed and its hybrid isolation performance using notch filter control is evaluated in single-axis. The hybrid isolation performance using notch filter control show additional performance improvement compared to the results using only passive components.
Keywords
RWA Disturbance; Vibration Isolator; Microvibration; Active Vibration Control; Notch Filter;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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