Chinese Space Science and Technology ›› 2017, Vol. 37 ›› Issue (4): 63-68.doi: 10.16708/j.cnki.1000-758X.2017.0059
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NI Tian-Zhi1,2, YANG Bao-Yu1,*
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Abstract: Thevibrationofcryocoolercompressorisoneofthecriticalfactorduringtheapplicationinsensitiveinstruments.Compressorvibrationwillleadtoimagingblur,affectthepointingaccuracyandresolutionofthetarget,andevencausethemechanicalresonanceoftheplatform.Inordertoreducetheimpactofcryocoolervibrationonspacepayloadsensitivedevices,anadaptiveactivevibrationcontrolalgorithmbasedonadaptivenarrowbandnotchfilterwasadopted.Thealgorithmisindependentofthevibrationtransferfunctionmodelandisnotlimitedbytheapplicationenvironment.Theadaptivevibrationcontrolisrealizedbyadjustingtheamplitudeandphaseofthedrivingsignalconstantly.Thecontrolsystem,includingDSPcontrolsoftware,electroniccircuitandtransducer,wassetup,andtheexperimentprovedtheeffectivenessofthealgorithmwhichwasfirstusedtocompressorvibrationcontrol.Thefundamentalfrequencyvibrationofthecompressorhasreducedfrom0.166m/s2to0.014m/s2,byafactorof21.2dB.
Key words: compressor, activevibrationcontrol, adaptivecontrol, vibrationcontrol, narrowbandnotchfilter
NI Tian-Zhi, YANG Bao-Yu. Adaptiveactivevibrationcontrolmethodforcryocoolercompressorinspace[J]. Chinese Space Science and Technology, 2017, 37(4): 63-68.
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URL: https://journal26.magtechjournal.com/kjkxjs/EN/10.16708/j.cnki.1000-758X.2017.0059
https://journal26.magtechjournal.com/kjkxjs/EN/Y2017/V37/I4/63