Overview of the NASA Docking System and the International Docking System Standard书

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1、OverviewoftheNASADockingSystemandtheInternationalDockingSystemStandardGeorgeParmaNDSSE&IDeputyLeadforExternalIntegrationNASA/JSC/EA3AIAAAnnualTechnicalSymposiumMay20,2011Agenda♦DockingSystemsBackground♦EvolutionoftheInternationalDockingSystemStandard♦NASADockingSystemOverview♦IS

2、SImplementation5/20/112AIAAAnnualTechnicalSymposiumDockingOverview–HeritageSystemsAgena/GeminiApolloProbeConeRussianProbeCone(Noscaleisimpliedbetweenfigures)AndrogynousPeripheralAssemblyApolloSoyuzSystem(APAS)5/20/113AIAAAnnualTechnicalSymposiumLowImpactDockingSystem(LIDS)-Backg

3、round♦NASAbegandevelopingLowImpactDockingSystem(LIDS)technologyinthe1980’s♦Thepurposeoflowimpactdockingtechnologyistogreatlyreduceoreliminatetheuseofimpactstoachievealignmentandcapture•Allpreviousdockingmechanismshaverequiredtheuseofimpacts(i.e.velocityorpost-contactthrusting)to

4、createtheenergyrequiredtoforcethepassivesoftcapturemechanisminterfacesintoalignment,thencapturethematingdockinginterface•LowImpacttechnologycanbeusedtogreatlyreduceandeveneliminatetheneedforimpactenergyandprovideflexibilityforfuturemissionplanners♦LIDSutilizesforce-sensing,activ

5、econtroltechnologywithS/Wdrivencharacteristics“tunable”tomeetperformanceofabroaderrangeofuniqueoperations•offerscapturewithminimalcontactforces,I.e.“lowimpact”•offersrequirementsrelieftoothervehiclesystemsandcriticalvehicleoperations•providesbothdockingandberthingcapability•real

6、-timeperformanceadjustmentandconfigurability♦LIDSwaschosenasthebaselinesystemfortheConstellationProgram5/20/114AIAAAnnualTechnicalSymposiumLowImpactDockingKeyRequirements♦Performsoft-capturebetweentwospacecraft•Vehiclemovement/thrustingand/oracompliantmechanismisneededtoovercome

7、grossinterfacemisalignmentstoachieveinitialcapture♦Energyabsorption/dampeningofresidualmotion/dynamics♦Precisionretractionandfinealignmentontosealing/shearinterface(I/F)♦Structuralmatingoflatchingmechanism•Providesealcompression,interfacepreload•Reactcoupleddynamicloads(ISSreboo

8、st,TLIBurns)♦Internalpressurizationandpassagefo