Chinese Space Science and Technology ›› 2016, Vol. 36 ›› Issue (2): 58-.doi: 10.16708/j.cnki.1000-758X.2016.0001
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ZHANG Bing-Qiang, XIANG Yan-Chao, CHEN Jian-Xin, SONG Xin, MA Ju-Yin
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Abstract: InthebrutaltemperatureenvironmentinSinusIridiumwiththerangebetween-180℃to+90℃,itneedstosolvecameraheatdissipationduringlunardaytimeandheatpreservationinmoonlitnightwithoutelectricenergysupplyunderthecomplexrotationof YuTu Rovermast.Besides,theuncertaintyoflunarduststillresultsinriskstothermaldesign.Inordertosolvetheextremehightemperatureproblemindaytime,themastrotatestoanoptimalpositionforheatdissipationandavoidsthecamerabeingtoohot,andtheproportionofpoweronandoffisoptimized.Inextremelylowtemperatureatnight,thethermalcouplingstateofthecameraandtheroverhasbeenchanged;themastisfoldedintothefencetokeepwarmbymeansofheatpreservationsystems.Basedontheanalysisofthecauseofdustsubsidence,themaxsunelevationangleforworkingisrestrictedtoavoidrisksbydust.Accordingtothethermalanalysisresultsandinorbitresults,itcanbeconfirmedthatthehighesttemperaturedecreased15degreesbymethodsoffindingoptimalpositionandoptimizingtheproportionofpoweronandoff.Byfoldingthemastinmoonnight,camerashavesafelyundergonethecoldnight,therefore45WpowergeneratedbyRHUhasbeensaved.Itindicatesthatthecouplingmethodbetweenthermalcontrolandpostureadjustmentcanbeusedtosolvethehighlowtemperatureproblemofmovablecamerasontheplanet′surfacerover,andreducetheroverpowerdemandforRHU.Itcouldprovidethermaldesignreferenceforthefollowoncelestialbodysurfaceexplorations.
Key words: YuTu Rover, navigationcameras, panoramacameras, thermaldesign, onorbitthermalanalysis, lunardust
ZHANG Bing-Qiang, XIANG Yan-Chao, CHEN Jian-Xin, SONG Xin, MA Ju-Yin. Thermaldesignandonorbitthermalanalysison YuTu rovermovablecameras[J]. Chinese Space Science and Technology, 2016, 36(2): 58-.
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https://journal26.magtechjournal.com/kjkxjs/EN/Y2016/V36/I2/58