Suited for Spacewalking pdf - Virtual Astronaut

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Design BriefC o n t ex t :Spacesuits are one of the important enabling technologies that have permitted humans to explore outers p a c e .To surv i ve the hostile env i ron m e n t ,humans had to be cove red with a pro t e c t i ve shell as they exitedtheir spacecra ft .This shell contained a part of Earth's surface env i ronment while remaining flexibleand impervious to the unique haza rd s , s u ch as high-speed part i cle impacts, e n c o u n t e red there .T h e s ere q u i rements meant that engineers and technicians had to spend long hours investigating and selectinga p p ro p riate materi a l s ,finding ways of fabri cating and joining suit parts together, and providing opera t-ing pre s s u re, p ow e r, and com mu n i ca t i ons while assembling a garment that was tough but flexible. T h etask was ach i eved with such great success that astronauts and cosmonauts have safe ly conducted thousandsof hours of extra vehicular activity.C h a ll e n g e :Design and build a pro t e c t i ve garment that will permit future space tra velers to explore the surface ofM a r s .The garment must protect the person inside from the haza rds of the Martian env i ronment whileremaining com f o rtable to wear. E xc u r s i ons on the surface will nom i n a ly last 8 hours, but the garm e n tw i ll have to function as long as 10 hours in emergency situation s .The garment must be flexible enoughto enable the wearer to walk up to 10 kilom e t e r s ,c o llect geologic samples, and operate a vari e ty of toolsand experimental appara t u s . Fu rt h e rm o re, the garment's design must be rugged enough to perm i trepeated use and be able to be serviced simply and quick ly. A l ong with the garm e n t ,design a coll e c t i onof geologic sampling tools, s u ch as ro ck hammers, and a general set of tools for assembly and repair activit i e s .These tools should be easy to use while wearing the pro t e c t i ve garm e n t ,be safe and ru g g e d ,a n di n t e rface with a general purpose tool ca r rier that must also be designed.Pro c e d u r e s :Select subcontractor teams to design and construct each of the garment's components, such as thehelmet or gloves. Teams will coordinate their work with each other as materials for and sizes of thecomponents are selected.M a t e ri a l s :Use whatever materials you find to con s t ruct the garment's com p on e n t s .Test these materials to ensuret h ey will surv i ve the Martian env i ron m e n t .Existing tools can be modified for use on Mars.E v a l u a ti o n :C onduct periodic team ev a l u a t i ons of the pro g ress of the garment and tool design pro c e s s .When allc om p onents are com p l e t e d ,i n t e g rate them for a full test in a simulated Martian env i ron m e n t .E v a l u a t ethe garment and tools on the basis of the cri t e ria presented in the context section .Suited for Spacewalking An Activity Guide for Technology Education, Mathematics, and Science, EG-1998-03-112-HQ • 4 7
Interface Control DocumentSystem Name:PageOfTeam MembersProject No.Date:Rev. No.Briefly explain how this system functions.
Page 1: National Aeronauticsand Space Admin
Page 6 and 7: National Education StandardsThe act
Page 8 and 9: National Mathematics StandardsNatio
Page 10 and 11: M e a s u r e m e n tThis activity
Page 12 and 13: need to be able to move arms, hands
Page 14 and 15: out in the vacuum of space.Dissolve
Page 16 and 17: Project MercuryEarly spacesuit desi
Page 18 and 19: to occur for the first time. As wit
Page 20 and 21: crew, an additional portable heat s
Page 22 and 23: and reentry, special orange-colored
Page 24 and 25: The SCU contains lines for power, c
Page 26 and 27: 17.Communications Carrier Assembly
Page 28 and 29: settings to be read. Setting number
Page 30 and 31: digital display on the chest-mounte
Page 32 and 33: Astronaut Joe Tanner works on the H
Page 34 and 35: humidity when oxygen is flowing fro
Page 36 and 37: The problem of picking up rocks and
Page 38 and 39: Bruce McCandless II pilots the MMU
Page 40 and 41: Mark C.Lee test flies the Simplifie
Page 42 and 43: STS-76 astronaut Michael R. Cliffor
Page 44 and 45: Spacesuit technicians test the mobi
Page 46 and 47: Future spacewalkers will roam the s
Page 48 and 49: Introduction:The steps spacesuit en
Page 52 and 53: Interface Control DocumentPage 1 Of
Page 54 and 55: Pulley close-upviewthe buck e t . T
Page 56 and 57: to them. Use a metric ruler for mea
Page 58 and 59: steel would make an excellent micro
Page 60 and 61: d ay or tw o, Ap o llo spacesuit ma
Page 63 and 64: Sleeve and Leg TesterInflated segme
Page 65 and 66: ity alone.If a scale were present,
Page 67 and 68: Exploration BriefMicrometeoroids an
Page 69 and 70: InvestigationPotato Astronaut—Par
Page 71 and 72: Exploration BriefKeeping Your CoolC
Page 73 and 74: AssessmentHave students design a gr
Page 75 and 76: InvestigationInsulating LayersIn th
Page 77 and 78: e nv i ronment experienced in Earth
Page 79 and 80: Arm Range of Movement Data SheetSub
Page 81 and 82: Body Size Range MeasurementsBased o
Page 83 and 84: ProcedureStep 1. Obtain the materia
Page 85 and 86: Magnified view oftire valve and cla
Page 87 and 88: Extensions• Compare the stiffness
Page 89 and 90: 2. Tethers4. Connector Seal TestPla
Page 91 and 92: 9. Vacuum Experiment - 1Obtain an e
Page 93 and 94: You can investigate neutral buoyanc
Page 95 and 96: MMUMercuryORUPLSSRegolithRMSSCUSkyl
Page 97 and 98: NA S A’s Central Ope ra tion of R
Page 99: Suited for Spacew a l k i n gA Te a

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