NASA内太阳系科学任务的太阳风推进的技术提升

1TechnologyAdvancementforSolarSailPropulsion(SSP)forNASAScienceMissionstotheInnerSolarSystemASummaryStatusBriefingtotheSolarSailTechnology&ApplicationsConferenceSeptember28,2004EdwardE.(Sandy)MontgomeryTechnologyAreaManager,SSPInSpacePropulsionTechnologyProjectNASAMarshallSpaceFlightCenter2Contents[SolarSailPropulsion-SSP]•Techdevelopmentroadmap•Tasksfundedtodate•TRL6Definition•Futuredevelopmentplans3SSPRoadmapFoundations
RequirementsFlowdown
SSPmissionstatement
missionpull
TechnologyAdvisoryGroup
ROSSNRA4RequirementsFlowdownFAD(10/31/01)PCA(10/16/03)ISTPProjectPlanContracts/TTAsTAGLevelI–HQ-ProgramLevelI–HQ/ScienceMissionDivisionLevelII–HQ(MSFC)/In-SpacePropulsionProgramLevelIII–MSFC/SolarSailPropulsionTechnologyAreaLevelIV–Contracts&Tasks5SSPMissionStatement(DraftRevision)1.LowertheriskofsolarsailtechnologyasaprimarypropulsionsystemtoalevelenablingitsselectionforbaselineonaNASAinnersolarsystemsciencemission.2.SolarsailpropulsiondemonstrationandvalidationshallbescalabletoinnersolarsystemNASAmissions3.AttainclosestapproachtoTRL6possibleonthegroundbytheendofFY064.Maximizethepotentialforflightvalidationthroughpartnershipsandcollaboration.SSPRoadmap6SSPRoadmap:DrivenbySpecific&FocusedMissionPull7ScalableGroundTestDemoSystem•Materialrefinementforhighmodulusandflexibility•longtermmaterialproperties•spaceenvironmentaleffects•latencyissues•Lackofdynamicmodeling•developmentoftrajectorypredictionfornon-Keplerianorbits•EstimationofCenterofPressure(CP)toCenterofMass(CM)•on-orbitdynamicstructuralinformation•Limitedhardwaredevelopment•Detailedmissionstudyofreferencemission•SystemIntegration•Micro-gravitytesting•Detailedunderstandingofstructure/membraneinteraction•Testingfacilitylimitations•Limiteddiagnosticinstrumentationintegration•Largeareaprocessing•thicknessissues•lifetimeissues•uniformdistributionofcoatingsTrussDevelopmentSailMaterialDevelopmentAttitude&TrajectoryControlStructuresHighFidelitymodeloftestsystemthatdemonstratesscalabilityMid-termProductNear-termProductTechnologyDevelopmentTechnologyChallengesSystemElementsExpandedGroundtestingandcomplimentaryanalyticaltoolsFlightDemoofSolarSailSystemPreliminarysystemdesignandtestplanforreferencemissionrequirementsIntegrationofhardwaretestingandhighfidelitymodelsTradestudytodetermineoptimalOrbit/ACSmethodologyComprehensiveenvironmentaltestingRefinementofassemblyprocessesLongdurationspaceenvironmentaleffectstestFurthermaterialdevelopmentSetofquantitativelaboratorycharacterizationtestsSolarSailTechnologyAssessmentGroupRoadmapIn-SpacePropulsionProgram8SailTechnologyClassesLEO/GTOShortLifeTRL7AtomicOxygennearlyinsurmountablebarriertootherthanfasttransitIAEZnamyaEncounterCosmos1AUScienceTRL5/6Validatetechstospaceenvironment,infuseintomissionconceptsGEOSTORMSolarWindSentinels0.5AUScienceTRL3/4Newmaterials/coatingsand/orthermalcontroltechniquesSPIPASOExtra-solarScience&ExplorationTRL1/2Newultralightwieghtmaterials0.1g/m2HeliosphericProbeMissionClassStartingTRLKeyIssuesPullMissionsPast/NowNearMid-TermFar-TermTimelineMissionClassTimelineSOATechnologyChallengesNASAMissionApplicationGEO/GTOShortLifePast/NowEncounter(?),Cosmos,ST-7,Znamya,InflatableAntennaExpAO,radiationbeltseffects,highGGtorquesNone1AuNearTermISPGroundDemo,ST-5GeostormST-9SSFVValidationinaspaceenvironment,InfusionintomissionapplicationsL1DiamondSolarPolarImager(SPI)0.25AuMid-TermMissionanalysis,FutureISPworkMaterialsenvironments,Thrustvectorrange,Lightweightsystem,100smsystemscalesizeParticleAccelerationSolarObservatory(PASO)TitanExplorerSaturnRingObserverExtraSolarFar-TermMissionconceptanalysis,Gossamer,Encounter(?)Ultra-lightweightsystemIntegratedsystemarchitectureSubtokilometersystemscalesizeInterstellarProbe(ISP)GeospaceSystemResponseImagers(GSRI)OuterHeliosphereRadioImager(OHRI)PhotocourtesyofThePlanetarySociety9SolarSailPropulsionScienceMissionWorkBreakdownStructure10SolarSailPropulsionRoadmap20092003200520072014••AECAbleSystemGroundDemoAECAbleSystemGroundDemo••LL’’GardeSystemGroundDemoGardeSystemGroundDemo••JPLIntegrateds/wToolkitJPLIntegrateds/wToolkitCycle1NRAIn-SpacePropulsionProgramCycle2NRA••HighFidelityModelsHighFidelityModels••DiagnosticSystemDiagnosticSystem••1Au1AuEnvEnv.Testing.TestingCycle3NRA••ThrustMeasurementThrustMeasurement••ScalingLawsScalingLawsNASATechnologyDevelopmentST9PhaseA*ST9PhaseB-D•InterimTechPullMissions?•GeotailNewMillenniumProgramNASAMISSIONSEnabled/EnhancedbySolarSailPropulsion•SolarPolarImager•ParticleAccelerationSolarOrbiter•L1–DiamondLaunch2009-2012Launch2012-2028Cycle4NRACycle5NRACycle6NRA••.25AuTVCA.25AuTVCA••.25AuArchitecture.25AuArchitecture••NanoNanoDiagnosticSystemDiagnosticSystem••.25AuGroundDemo.25AuGroundDemo••.25AuGNCSoftwareDevelopment.25AuGNCSoftwareDevelopment••.25AuSubsystemDevelopment.25AuSubsystemDevelopmentFlightValidationReqmts&Plans201120132015ChargingAnalysis&TestSmartAdaptiveStructuresLong-TermMat’lsTestCombinedSpaceEffectsTestSailOpticalProperties11SSPTasksFundedtoDate
NRACycles1&2
DirectedTasks
SystemsAnalysisTasks
CompositeSchedule12•MSFC-Huntsvi