Moon & Mars Orbiting Spinning Tether Transport - Tethers Unlimited

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Rendezvous• Rapid AR&C Capability Needed• Relative Motion is Mostly in Local Vertical• Tether Deployment Can Extend RendezvousWindow∆Z (m)201612840-10 0 10∆X (m)Payload Capture Vehicledescends towards PayloadPCV DeploysMore TetherPCV pays out tetherand Payload maneuversto dock with grapplePCV engagestether brake andbegins to lift payload• Additional Tether Deployment Under Braking Can Reduce Shock1LoadsLoad Level0.80.60.40.1 s braking5 s braking10 s braking20 s braking30 s braking0.2TUI/MMOSTT 1800 10 20Time (s)30 40 50
Space Debris-Survivable Tether• Micrometeoroids & Space Debris WillDamage Tethers• Solution approach: spread tether materialout in an open net structure with multipleredundant load/current pathsPrimaryLinesSecondaryLines(initiallyunstressed)SecondaryLinesTransferLoad AroundDamagedSectionSeveredPrimaryLineEffects ofDamageLocalized0.2 to10's ofmeters0.1- 1 meterTUI/MMOSTT 19
Page 2 and 3: Tethers Unlimited, Inc.MMOSTT Final
Page 24 and 25: NIAC Funded Tether Research• Moon
Page 26 and 27: Electrodynamic Reboost• Power sup
Page 28 and 29: Cislunar Tether Transport System•
Page 30 and 31: MXER Tethers Included in NASA’sII
Page 32 and 33: 5mt Payload Tether Boost Facilityfo
Page 34 and 35: LEOGTO Boost Facility• Initial Fa
Page 36 and 37: Tether Boost FacilityControl Statio
Page 38 and 39: LEOGTO Boost Facility• TetherSim
Page 42 and 43: Proposed RETRIEVE TetherExperiment
Page 44 and 45: µTORQUE on Delta IV• Delta-IV Se
Page 46 and 47: Opportunities for NASATechnology De
Page 48 and 49: AIAA 2000-3842COMMERCIAL DEVELOPMEN
Page 50 and 51: --Commercial Tether Transport AIAA
Page 52 and 53: -Commercial Tether Transport AIAA 2
Page 54 and 55: Commercial Tether Transport AIAA 20
Page 56 and 57: Commercial Tether Transport AIAA 20
Page 58 and 59: Momentum Exchange/Electrodynamic Re
Page 60 and 61: DESIGN AND SIMULATION OF A TETHER B
Page 62 and 63: Tether Boost Facility Design AIAA 2
Page 70 and 71: Tethers Unlimited, Inc.Cislunar Tet
Page 82 and 83: Interim Report Outline- Configurati
Page 84 and 85: Mission Definition¥ Payload Capaci
Page 86 and 87: Baseline Control Station DetailsTET
Page 88 and 89: Baseline Grapple AssemblyCAPTURES A
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LEO Facility System ArchitectureGRA
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Payload Adapter Assembly Subsystems
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Potential Reeling FunctionsReeling
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LEO Control Station Weights16
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Payload Adapter Assembly Weights18
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Tether Boost FacilityRequired Power
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Electrical Propulsion Voltage´ Spe
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Potential Reeling FunctionsReeling
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Preliminary Reeling AnalysisθθAss
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Tether Boost FacilitySystem Require
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Table of Contents1 Scope ..........
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2 ReferencesThis section lists docu
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The system shall measure and contro
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4 Ground Rules & AssumptionsThis se
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Appendix F: Tether Boost Facility D
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Appendix F Tether Boost Facility De
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Appendix F Tether Boost Facility De
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Appendix L: Tether Boost Facility D
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Tethers Unlimited, Inc.Tether Rende
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Ongoing Tether Work Under NIAC Fund
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Cislunar Tether Transport System•
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Rapid Earth-Mars Transport• Reusa
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EarthMars Launch Windows• MMOSTT
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Incremental Development Path1. TORQ
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LEOGTO Boost Facility• TetherSim
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Tether Boost FacilityControl Statio
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Modular Design• Design Components
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Payload Accommodation AssemblyConfi
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Electrodynamic Thrusting• Drive c
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Tether Facility Reboost• Use Elec
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Rendezvous• Rapid Automated Rende
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Rendezvous Method: Preparation• P
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Development Issues• Automated Ren
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Potential Flight Experiments• Hig
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Opportunities for NASATechnology De
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Acknowledgements• Boeing/RSS - Jo
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IAF-99-A.5.10RAPID INTERPLANETARY T
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Rapid Interplanetary Tether Transpo
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IAF-00-S.6.04TETHER SYSTEMS FOR SAT
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IAF-00-S.6.04controlled very precis
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IAF-00-S.6.04Perigee Altitude (km)3
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IAF-00-S.6.04The LEO⇒GTO Tether B
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IAF-00-S.6.04AcknowledgmentsThis re
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Tethers Unlimited, Inc.Appendix K:
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Tethers Unlimited, Inc.at a rate of
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Tethers Unlimited, Inc.Appendix L -
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Tethers Unlimited, Inc.Appendixm M:
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Appendix N. MXER Tether for Deployi
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Electrodynamic Thrustingto Reboost
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100000 95000 90000 85000 80000 7500
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Momentum Exchange/Electrodynamic Re
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NOMENCLATURESymbol MeaningA payload
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DepartureangleA = 1.5π - (ω + u
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Tether material has a "characterist
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Rendezvous of Grapple with PayloadT
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adius vector to the new center of m
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days from payload pickup at one pla
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"JupiterandBeyond"Tether cut CUT:<
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Tethers Unlimited, Inc.Appendix Q:
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Tethers Unlimited, Inc.Appendix R:
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