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Team 5 Structures and Weights QDR #2

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Team 5 Structures and Weights QDR #2. Scott Bird Mike Downes Kelby Haase Grant Hile Cyrus Sigari Sarah Umberger Jen Watson. Preview. Walk Around Sizing Criteria Material Selection Wing Box Properties Pod Support. Walk-Around. Data Boom. Pod. Pod Entrance. Engine. - PowerPoint PPT Presentation

Text of Team 5 Structures and Weights QDR #2

  • Team 5 Structures and Weights QDR #2Scott BirdMike DownesKelby HaaseGrant HileCyrus SigariSarah UmbergerJen Watson

    Team 5 PDR

  • PreviewWalk Around

    Sizing Criteria

    Material Selection

    Wing Box Properties

    Pod Support

    Team 5 PDR

  • Walk-AroundData BoomPodEngineTail Dragging Landing GearPod Entrance

    Team 5 PDR

  • Wing Box Design Sizing Criteria

    Maximum Bending StressIy>=My*z/xx

  • Wing Box PropertiesFront Spar- Tip Deflection Limiting CriteriaRear Spar- Tip Rotation Limiting Criteria

    Team 5 PDR

  • Final Wing Box PropertiesMaterialSpruce (lowest weight)Heights defined by airfoilFront SparI-beam%20 chordRear SparRectangle%60 chord.125in2.25in1.2in.75in2.88in

    Team 5 PDR

  • Performance of Wing Box=.072 deg

    Tip deflection= 1.77 inches

    Total Wing Weight=Front Spar + Rear Spar + 15 Ribs=7.4401 lbs

    Team 5 PDR

  • Pod SupportMy=q*L^2/12My-maximum bending stressq=distributed load(1/2 pod weight)L=lengthIy>=My*z/xx

    Lq

    Team 5 PDR

  • Fuselage Layout

    Team 5 PDR

  • Results to come.Wing Failure AnalysisWing AttachmentBoom SizingFuselage Structure AnalysisTail Structure

    Team 5 PDR

  • Questions?

    Team 5 PDR

  • Material PropertiesSelection and use of Engineering Materials, J.A. Charles

    Team 5 PDR

  • Appendix (References)

    Mechanics of Materials, James GereSelection and use of Engineering Materials, J.A. Charleshf

    Team 5 PDR

  • Span-wise LoadingAssumed Elliptical Loading

    Maximum at Root

    Max bending at root =245 lbf-ft

    Team 5 PDR

  • Wing Box Properties (Rotation Requirements)Requirement:
  • Wing Tip Deflection for Aluminum

    Team 5 PDR

  • Weight of Wing Structure (half span of front spar)Weight=density*Cross sectional area*length

    Team 5 PDR