Light Truck Frame Joint Stiffness Study Phase 1 Final Report
Light Truck Frame Joint Stiffness Study Phase 1 Final Report
Light Truck Frame Joint Stiffness Study Phase 1 Final Report
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JOINT STIFFNESS TOOLBOX<br />
<strong>Joint</strong> #3: Tube Through Partially Boxed Section<br />
<strong>Stiffness</strong> Calculations<br />
Input (mm)<br />
Test Design Window<br />
Design Variables (mm) Case 1 Case 2 <strong>Joint</strong> Min (mm) Max (mm)<br />
Thickness<br />
Crossmember Tube Thickness 2.5 2.5 2.5 2 6<br />
Side Rail Thickness 3.5 3.5 3.5 2 6<br />
Inner Crossmember Support Bracket<br />
Thickness 3 3 3 2 6<br />
Shape<br />
Animations Shape Variables (mm)<br />
animations\JCrossmember Tube Diameter 72 72 72 50 120<br />
animations\JSide Rail Height 128 128 128 60 150<br />
animations\JCrossmember Bracket Width 104 104 104 95 200<br />
animations\JSide Rail Width 67 67 67 50 100<br />
Output<br />
Loading<br />
Animations <strong>Stiffness</strong> Calculations Case 1 Case 2<br />
Test<br />
<strong>Joint</strong><br />
Units<br />
animations\JKx Bending <strong>Stiffness</strong> (Mx) 2.642 2.642 8.145<br />
animations\JKy Torsion <strong>Stiffness</strong> (My) 6.499 6.499 0.708<br />
animations\JKz Fore/Aft <strong>Stiffness</strong> (Mz) 5.913 5.913 6.660<br />
Mass 5.666 5.666 5.692<br />
kN-m/deg<br />
kN-m/deg<br />
kN-m/deg<br />
kg<br />
Yellow cells are user input data.<br />
Red cells are calculated numbers.<br />
Figure 36: <strong>Joint</strong> 3 <strong>Joint</strong> <strong>Stiffness</strong> Toolbox Spreadsheet<br />
Input and Calculated Results<br />
<strong>Report</strong>: A/SP-005-1 <strong>Light</strong> <strong>Truck</strong> <strong>Frame</strong> <strong>Joint</strong> <strong>Stiffness</strong> <strong>Study</strong> 63
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