›› 2016, Vol. 36 ›› Issue (5): 40-.doi: 10.16708/j.cnki.1000-758X.2016.0056

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Studyontakeoffstabilityboundariesoflunardetector

HU  Jian-Guo, SHI  Yao-Zu, ZHAO  Yi, XU  Hong-Bin   

  1. Xi′anModernControlTechnologyResearchInstitute,Xi′an710065,China
  • Received:2016-06-03 Revised:2016-07-27 Online:2016-10-25 Published:2016-08-22

Abstract: Thetakeoffstabilityoflunardetectorisanimportantperformanceindexofanascender′stakingofffromthemoon′ssurface.Bychoosingsomemaininfluencefactorsoftakeoffstability,thetakeoffdynamicapproximationmodelofascenderwasestablishedcombiningwithanoptimallatinhypercubeexperimentaldesignmethodandtheRBFneuralnetwork,andthesensitivityofthefactorsfortheangulardisplacementandvelocitywasquantitativelyanalyzed.Basedonthestabilitycriterionthattheangulardisplacementandangularvelocityofascenderswas5°and5(°)/srespectively,theboundaryvaluesofasingleinfluencefactorweregiven.Aprogramformultiplefactorsboundaryanalysisoftheascendertakeoffstabilitywascompiled.Theboundaryexpressionoftheascendertakeoffstabilityisfoundedbythewayofthreedimensionalspace,andthetakeoffstabilityboundariesweredeterminedwithasample.

Key words: spacecraftstructureanddesign, lunardetector, takeoffstability, approximationmodel, sensitivity, criticalcondition, compositivecriterion