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Structures main code – tanks.m

Steven (“CJ”) Hiu 03/27/2008 “Thank You For The Memories” MAT & FAM Coder – Structures Composite Tanks Analysis CAD – Tanks, Intertank Couplers, Assembly Views. Structures main code – tanks.m. Aerodynamic Loads. Propellant Type Propellant Mass Tank Material Max g loading.

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Structures main code – tanks.m

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  1. Steven (“CJ”) Hiu 03/27/2008 “Thank You For The Memories”MAT & FAM Coder – StructuresComposite Tanks AnalysisCAD – Tanks, Intertank Couplers, Assembly Views AAE 450 Spring 2008

  2. Structures main code – tanks.m Aerodynamic Loads Propellant Type Propellant Mass Tank Material Max g loading Calculate Dimensions to hold propellant volume YES Spherical Tank? L/D > 3? Tank Buckling & Bending NO PASS YES NO FAIL Inter-Tank Analysis PASS Add hoops and/or increment thickness FAIL Add hoops and/or increment thickness Calculate stage mass PASS COST, Dimensions, Mass Inter-stage Skirt Analysis PASS Add stringers/hoops FAIL Prop Code (in MAT)

  3. Strength Increase – Pressurized Monocoque • Flight pressure-stabilized design • 17% increase in tank strength vs. axial buckling • 30-40% increase in tank strength vs. bending Increase in axial buckling strength versus tank internal pressure and dimensions AAE 450 Spring 2008 Structures

  4. Acknowledgements • Kevin Kloster, John Tsohas for help and advice • Alan Schwing for tireless dedication “He’s like some kind of…non- giving up…school guy!” – Bart Simpson • Brandon White for filling up gaps and much beer • All MAT coders, especially Danielle Yaple, the Borg Queen • Everyone on the team – you’ve made it a great semester despite the blood, sweat and tears (manly, manly tears). AAE 450 Spring 2008 Structures

  5. carbon fiber sleeve Pcontact P Pcontact metallic lining Backup Slide 1 – Carbon Fiber Analysis  Metallic stress Carbon stress Image: Hiu Structures

  6. Nose Cone 3rd Stage Propellant Tank Spin Table 2nd Stage Avionics 3rd Stage Engine 2nd Stage Engine Inter-stage Skirt 2nd Stage Propellant Tank 1st Stage Pressurant Tank 2nd Stage LITVC Tank 1st Stage Avionics 1st Stage Oxidizer Tank Inter-stage Skirt 1st Stage Fuel Tank Inter-tank Coupler 1st Stage Engine Backup Slide 2 AAE 450 Spring 2008 Image: Hiu, Donahue, Hinton, Doyle, White Structures

  7. Backup Slide 3 Image: Hiu AAE 450 Spring 2008 AAE 450 Spring 2008 <7> Structures

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