›› 2016, Vol. 36 ›› Issue (3): 63-69.doi: 10.16708/j.cnki.1000-758X.2016.0030

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Researchonmechanicalcharacteristicsoflunarspaceelevators

 LI  Meng*, CHEN  Wei-Yue, YANG  Sheng, GAO  Xu   

  1. InstituteofMannedSpaceSystemEngineering,ChinaAcademyofSpaceTechnology,Beijing100094,China
  • Received:2015-08-17 Revised:2015-12-29 Online:2016-06-25 Published:2016-02-24

Abstract: Themechanicalandmasscharacteristicsaredeterminedbythestructureoflunarspaceelevator.
Mostofcurrentresearchesaboutlunarspaceelevatorsonlyfocusoncombined-cross-sectionstructure.Variousstructuresoflunarspaceelevatorswereinvestigated.Toanalyzethemechanicalandmasscharacteristics,thedynamicmodelofthespaceelevatorwasestablished.Bysupposingthedensityandstressasconstantrespectively,twodifferentkindsoflunarspaceelevatorscalledfixed-cross-sectionstructureandtapered-cross-sectionstructurewereobtainedandcompared.Theresultsshowthatthemaximumstressoftapered-cross-section-structurecanbedesignedasanyconstantvalue,whichreducestherequirementofmarginstressofthematerial.Asaresult,tapered-cross-sectionstructurealsohastheleastmass,whichcouldbeconsideredastheoptimalchoice.

Key words: lunarspaceelevator, mechanicalcharacteristics, masscharacteristics, combinedcrosssection, fixedcrosssectionstructure, taperedcrosssection, Lagrangianpoint