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http://dx.doi.org/10.5139/JKSAS.2022.50.6.413

Fault Diagnosis of High-Speed Rotating Machinery With Control Moment Gyro for Medium and Large Satellite Using Envelope Spectrum Analysis  

Kang, Jeong-Min (Mechanical R&D Lab and Seeker & EO/IR R&D Lab, LIG NEX1)
Song, Tae-Seong (Mechanical R&D Lab and Seeker & EO/IR R&D Lab, LIG NEX1)
Lee, Jong-Kuk (Mechanical R&D Lab and Seeker & EO/IR R&D Lab, LIG NEX1)
Song, Deok-Ki (Mechanical R&D Lab and Seeker & EO/IR R&D Lab, LIG NEX1)
Kwon, Jun-Beom (Mechanical R&D Lab and Seeker & EO/IR R&D Lab, LIG NEX1)
Lee, Il (Defense Industry Technology Center, Agency for Defense Development)
Seo, Joong-Bo (Defense Industry Technology Center, Agency for Defense Development)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.50, no.6, 2022 , pp. 413-422 More about this Journal
Abstract
In this paper, the fault analysis of the momentum wheel, which is a high-speed rotary machinery of 'Control Moment Gyro' for medium and large satellite, was described. For fault diagnosis, envelope spectrum analysis was performed using Hilbert transformation method and signal demodulation method to find the impact signals periodically generated from amplitude modulated signals. Through this, the fault of the momentum wheel was diagnosed by analyzing whether there was a harmonic component of the rotational frequency and a bearing fault frequency in a specific frequency band with a high peak.
Keywords
CMG; Momentum Wheel; High-Speed Rotating Machinery; Envelope Spectrum; Fault Frequency; Fault Diagnosis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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