Moon & Mars Orbiting Spinning Tether Transport - Tethers Unlimited

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Tethers Unlimited, Inc.MMOSTT Final ReportTABLE OF CONTENTSI. INTRODUCTION ..........................................................................................................................1II. BACKGROUND .............................................................................................................................2A. MOMENTUM-EXCHANGE TETHERS.................................................................................................2B. ELECTRODYNAMIC REBOOST ...........................................................................................................2C. KEY ADVANTAGES .............................................................................................................................3D. SUMMARY OF PHASE I RESULTS .......................................................................................................4III. PHASE II TECHNICAL OBJECTIVES......................................................................................6IV. SUMMARY OF RESULTS OF THE PHASE II EFFORT........................................................6A. ROADMAP FOR DEVELOPMENT OF A EARTH-MOON-MARS TETHER TRANSPORT SYSTEM ......6B. DESIGN AND SIMULATION OF A TETHER BOOST FACILITY FOR LEO⇒GTO PAYLOADTRANSPORT........................................................................................................................................8C. TETHER FACILITY REBOOST............................................................................................................ 11D. DEVELOPMENT AND SIMULATION OF TETHER RENDEZVOUS METHODS .................................13E. TETHER SYSTEMS FOR INTERPLANETARY TRANSPORT ................................................................15F. µTORQUE:LOW-COST MOMENTUM-EXCHANGE/ELECTRODYNAMIC-PROPULSIONDEMONSTRATION ............................................................................................................................17V. PUBLICATIONS ...........................................................................................................................18VI. CONCLUSIONS ...........................................................................................................................19Appendix A Tether Boost Facilities for In-Space Transportation, 2001 NIAC FellowsConference Presentation.Appendix B. “Commercial Development of a Tether Transport System”, AIAA Paper 2000-3842, Presented at the 36 th Joint Propulsion Conference, Huntsville AL, July 18,2000.Appendix C. “Design and Simulation of a Tether Boost Facility for LEO⇒GTO PayloadTransport”, AIAA Paper 2000-3866, Presented at the 36 th Joint PropulsionConference, Huntsville AL, July 19, 2000.Appendix D. “The Cislunar Tether Transport System Architecture”, Paper presented at the 2 ndLunar Development Conference, Las Vegas, NV, July 20, 2000.Appendix E. Tether Boost Facility Design Study Interim Report, by Boeing/RSS.Appendix F. Tether Boost Facility Design Study Final Report, by Boeing/RSS.Appendix G. Tether Rendezvous Studies.Appendix H. 2000 NIAC Fellows Conference Presentation.Appendix I. “Rapid Interplanetary Tether Transport System”. Paper IAF-99-A.5.10,presented at the 50 th International Astronautical Congress, 4-8 Oct 1999,Amsterdam, The Netherlands. This paper summarized the results of the Phase Ieffort.Appendix J. “Tether Systems for Satellite Deployment and Disposal”, Paper IAF-00-S.6.04,presented at the 51 st International Astronautical Congress, 2-6 Oct 2000, Rio deJaniero, Brazil.Appendix K. Tether Facility Reboost Study.1
Tethers Unlimited, Inc.MMOSTT Final ReportAppendix L. The µTORQUE Momentum-Exchange Tether Experiment, Paper submitted tothe 2002 STAIF Conference.Appendix M. TetherSim : Tether Transport System Dynamics Verification ThroughSimulation.Appendix N. Momentum-Exchange/Electrodynamic Reboost Tether Facility for Deploymentof Microsatellites to GEO and the Moon, paper presented at the 2001 STAIFConference, Albuquerque, NM.Appendix O. µSatellite Tether Boost Facility, 2001 STAIF Conference presentation ,Albuquerque, NM.Appendix P. Interplanetary Tether Transport Overview, Paper presented at the 2001 SpaceMechanics Conference.Appendix Q. Application of Synergistic Multipayload Assistance with Rotating Tethers(SMART) Concept to Outer Planet Exploration, forum on innovative approachesto outer planetary exploration 2001-2020, 21-23 February 2001, Lunar andPlanetary Institute, Houston, Texas.Appendix R.Mars-Earth Rapid Interplanetary Tether Transport (MERITT) Architecture,Paper presented at 2001 STAIF Conference.2
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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 40 and 41: Rendezvous• Rapid AR&C Capability
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
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-Commercial Tether Transport AIAA 2
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Commercial Tether Transport AIAA 20
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Commercial Tether Transport AIAA 20
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Momentum Exchange/Electrodynamic Re
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DESIGN AND SIMULATION OF A TETHER B
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Tether Boost Facility Design AIAA 2
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Tethers Unlimited, Inc.Cislunar Tet
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Interim Report Outline- Configurati
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Mission Definition¥ Payload Capaci
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Baseline Control Station DetailsTET
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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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