National Aeronautics and Space Administration

Evolvable Mars CampaignSmall Habitat Commonality Reduces Cost and Improves OperationsBrand GriffinTeam: Roger Lepsch, John Martin (LaRC)Edgar Zapata, Carey McCleskey (KSC)Michelle Rucker, Natalie Mary, Robert Howard (JSC)Philip Nerren (MSFC)Scott Howe (JPL)

Subject Matter Experts:Jeff Cerro (LaRC)Jack Chapman, Leo Fabisinski, Steve Sutherlin (MSFC)Imelda Stambaugh, Michelle Rucker, Robert Howard, Natalie Mary, Steve Chappell (JSC)Ruthan Lewis, Glenn Rakow (GSFC)

Habitat Points of Contact:Tara Polsgrove, Dan Thomas (MSFC)Larry Toups, Steve Hoffman, Mike Gernhardt, Lora Bailey (JSC)

Future In-Space Operations ColloquiumJuly 29, 2015

1

Introduction

2

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EMC Small Habitat Commonality Scope

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Many Mars StudiesMany Small Habitats

4

1950 1960 1970 1980 1990 2000

Electromagnetic LaunchingAs a Major Contribution toSpaceflight, A.C. Clarke

W. von Braun

The Mars ProjectW. von BraunCan we Get to Mars?W. von Braun

A Study of MannedNuclear-Rocket MissionsTo Mars, S. Himmel, et al

The Exploration of MarsW. Ley & W. von Braun

Study of ConjunctionClass Manned Mars TripsDouglas Missile & Space

Capability of the Saturn VTo Support Planetary ExplorationG.R. Woodcock

Manned Entry MissionsTo Mars and Venus,Lowe & Cervais

Conceptual Design for aManned Mars Vehicle, P. Bono

Concept for a Manned MarsExpedition with Electrically...E. Stuhlinger & J. King

Manned InterplanetaryMission Study, Lockheed

EMPIRE, Study of Early

Ford Aeronautic

A Study of Early Inter-

General Dynamics

Study of NERVA-Electric

E. Stuhlinger, et al

Design ReferenceMission 1.0, NASA

ExPO Mars ProgramStudy, NASA

America at the ThresholdSEI Synthesis Group

The Mars TransitSystem, B Aldrin

A Smaller Scale MannedMars Evolutionary ProgramI. Bekey

Report on the 90-Day Study on

Future in Space, NASA

Pioneering the Space

Comm on Space

Manned MarsExploration, NASA

Planetary EngineeringOn Mars, C. Sagan

243 AnnotationsThe Annotated BibliographyD.S. Portree

The Viking Results-TheCase for Man on Mars, B. Clark

Libration-Point StagingConcepts for Earth-MarsR. Farquhar & D. Durham

A Case for Mars: ConceptDevlpmt for Mars Research

Mars Direct: A Simple,

The L1 TransportationNode, N. Lemke

First Lunar Outpost,A.L. Dupont, et al

The Moon as a Way stationfor Planetary Exploration, M. Duke

Combination LanderAll-Up Mission, NASA

Design ReferenceMission 3.0, NASA

(2) Design Reference Mission 4.0,Bimodal and SEP, NASA

Three-Magnum SplitMission, NASA

Dual Landers PresentationNASA (B. Drake)

Exploration Tech Studies,Office of Explor., NASA

Exploration Tech Studies,Office of Explor., NASA

**Bold type represents selected studies*A Comparison of Transportation Systems for Human Missions to Mars, AIAA 2004-3834

EMC Small Habitat Commonality

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Major Elements of Commonality

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Objective: Maximize Small Habitat Commonality

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Creating a Core Commonality

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Commonality Recommendations*

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Small Habitat Master Equipment List

Other Input FeaturesGeometry characteristicsComponent locations (In or Out of Hab)Data source referencesNotes and rationale

18

Common MEL for each HabComponent / Subassembly level of detail

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Commonality Scoring Process

Assumes specific Common Core scenarios to assess level of commonalityIndex values provided to Costing Tool for each subsystem for a given Common Core scenarioIndex is fraction of equipment groups common to Core within subsystems (1.0=all equipment types are in core scenario)Currently modeling 3 scenarios:

Natural Commonality: No equip features forced, common functional needsFull-Featured: All features forced, all values=1.0, highest mass impactBuild-Your-Own: All features are user-selected

19

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Mass Comparison Table

Provides mass comparisons of Habitats at Subsystem levelCompares potential Common Core optionsLists Habitats from prior studies as reference (mapped to same subsystems)

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Overview Commonality LCC Assessment Results Assessment as Modeled

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Common Interfaces and Structural Design

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Notional Representation of Common Small Habitats

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