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Masses and GeometryNotesStock Purchasing Current DesignPrice
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Sustainer Mass [kg]144.5 OD 2.5 ID Tube 6" (can make 2) 83.81
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Sustainer Diam [m]0.07623.25 OD Round 6" (need 2 to make 2)68.22
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Sustainer Length [m]2.032Total152.03
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Minimum Cone Diam [m]0.01905Demo II Price for 2185.72
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Cone Thickness [m]0.004445
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Base Bolt Thickness [m]0.00381Material Properties
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Bolt Major Diam [m]0.00416568-32Aluminum 6061-T6 Tensile Yield Strength [MPa]240
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Bolt Minor Diam [m]0.003169928-32Steel 18-8 Tensile Yield Strength [MPa]215
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Bolt Minor Area [m^2] (derived)0.0000078919892558-32
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Num Bolts []8
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Minimum Moment of Area [m^4]0.00000002344934854
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Dynamics and Forces
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Maximum G [g]15
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Maximum Acceleration [m/s^2] (derived)147
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Sustainer Weight Under Acc [N] (derived)2058
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Sustainer Nominal Drag [N] 10000 AoA from RasAero
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Total Sustainer Force [N]3058
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Aerodynamics
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Maximum AoA [deg]2
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Flight Velocity at Max-Q [m/s]800This needs to be checked
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Mach Number []1.5
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Reynolds Number [] 110019889.5
Reference dimension is length since small AoA, same Order of Mag
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Cd []0.6708203932
Reference graph then compressibility correction
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Max-Q [Pa]392000
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Pure Moment of Sustainer Rotation [N*m]50.38487547
Takes aerodynamic drag and puts it at a moment arm L/2 away
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Stresses
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Bolt Shear Equivalent Tensile Stress [MPa]83.89221016Assuming all force on cone
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Tearout Normal Stress [MPa]94.95010977
Assuming all force on cone, stress concentration factor for a cirlce is 3
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Maximum Stress at Min Cone Area [MPa]30.0168983Use drag force at max AoA
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