Light Truck Frame Joint Stiffness Study Phase 1 Final Report

JOINT STIFFNESS TOOLBOX
Joint #4: Alligator to Box Section
Stiffness Calculations
Input (mm)
Test Design Window
Design Variables (mm) Case 1 Case 2 Joint Min (mm) Max (mm)
Thickness
Lower Crossmember Thickness 3.2 3.2 3.2 2 6
Outer Side Rail Thickness 3.2 3.2 3.2 2 6
Upper Crossmember Thickness 3.2 3.2 3.2 2 6
Inner Side Rail Thickness 3.2 3.2 3.2 2 6
Shape
Animations Shape Variables (mm)
animations\JCrossmember End Width 65 65 65 50 100
animations\JCrossmember Attach End Width 85 85 85 50 100
animations\JRail Width 65 65 65 50 100
animations\JUpper Flange Width 10 10 10 5 45
animations\JRail Height 115 115 115 100 130
animations\JLower Flange Width 10 10 10 5 30
Output
Loading
Animations Stiffness Calculations Case 1 Case 2
Test
Joint
Units
animations\JKx Bending Stiffness (Mx) 0.617 0.617 0.617
animations\JKy Torsion Stiffness (My) 3.053 3.053 3.053
animations\JKz Fore/Aft Stiffness (Mz) 2.175 2.175 2.175
Mass 4.680 4.680 4.680
kN-m/deg
kN-m/deg
kN-m/deg
kg
Yellow cells are user input data.
Red cells are calculated numbers.
Figure 38: Joint 4 Joint Stiffness Toolbox Spreadsheet
Input and Calculated Results
Report: A/SP-005-1 Light Truck Frame Joint Stiffness Study 65