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http://dx.doi.org/10.20910/JASE.2016.10.1.95

Experimental Study on Effects of Speed Error Disturbance on Reaction Wheel Control  

Kim, Jichul (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Lee, Hyungjun (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Yoo, Jihoon (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Oh, Hwasuk (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Publication Information
Journal of Aerospace System Engineering / v.10, no.1, 2016 , pp. 95-102 More about this Journal
Abstract
There are many possible disturbance sources on such a spacecraft, but reaction wheel assembly (RWA) which is generally used for spacecraft attitude control is anticipated to be the largest. These effects on degradation of performance of spacecraft such as attitude stability. In reaction wheel, disturbance caused by imbalance and speed error. It is hard to emulate speed error disturbance because it is not coincide with wheel frequency. This paper concentrates on emulating and analyzing the speed error disturbance. Firstly, classify the causes that lead to speed error disturbance which generate RPM fluctuation. Secondly, simulated with disturbance driver module and reaction wheel assembly which are developed by Spacecraft Control Lab. Experimental investigations have been carried out to test the disturbance emulator module as a disturbance generator for RWA. Measurements and test have been conducted on various fault. Frequency analysis of test data show that speed error disturbance effects on wheel settling wheel speed or fluctuation type.
Keywords
Reaction Wheel; Speed Error Disturbance; Disturbance Generator;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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