Model
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Loading Cases
Loading Case | M (Nm) (negative = clockwise) | F (N) |
|---|---|---|
1 | 91.8794 | 248.3247 |
2 | -222.9070 | -602.4562 |
3 | 289.7197 | 783.0325 |
4 | -284.4791 | -768.8685 |
5 | 370.7567 | 1002.1 |
All loads found using MATLAB solver, based off values found previously
Fixtures
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This small section of the steering arm is fixed to the upright in the full model.
Loads
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The force load acts perpendicular to the bolt, while the moment comes from the upright, and acts at the fixed face.
Each case will have the force and moment applied at the same spots, using the different values from the Loading Cases table above.
Mesh
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idk what you'd call that but there’s where I put the mesh slider.
Results
Loading CaseMax Stress (MPa) | Did it break? | Model |
|---|---|---|
1 | 238.4BROKE |   |
2 | 569.7BROKE |   |
3 | BROKE |  |
4 | BROKE |  |
5 | BROKE |  |
Every single loading case caused the steering arm to break, in the same point every time.
Conclusion
The steering arm needs to be redesigned to strengthen the thinner part, can be accomplished by adding more material while removing some from the section that won't break. Adding fillets to all the edges would also even out some potential stress concentrations in the part.