FSU-03 Upright 08/02/23

The Upright

Model Version: 11.0

Material: 7075 T6

Yield Strength: 5.03e+08

Validation: August 2nd, 2023

By: Malcolm Park

Fixtures

  • bonded component interaction between upright and both bearings and retaining rings

  • component contact interaction between spindle and upright

  • spherical face radial fixtures on both bearings

  • Virtual wall where steering rod attaches to upright

Loading

  • Forces in negative X will act on the protruded section of the upright where the spindle sits, and positive X acts on the recess where the spindle sits behind the upright, shown below

 

  • Forces in Y and Z will act on the face of the dummy spindle that faces the UPRIGHT MODEL’S +z axis

 

  • Moments act on the same face of the spindle that the y and z forces act on, but its important to have them act about the correct axis of the VEHICLE MODEL, where the x axis and z axis of the UPRIGHT MODEL are wrong (for some reason)

Loading Cases:

Case

Fx

Fy

Fz

Mx

My

Mz

Case

Fx

Fy

Fz

Mx

My

Mz

1

0

2096.57

0

0

0

87.3221405

2

-1080.4

2160.8

1080.4

0

-48.261468

-211.65036

3

759.92

1519.85

759.92

0

-29.3557096

275.4714165

4

-1381.27

2762.55

-1381.27

0

53.3584601

-270.5903765

5

971.55

1943.1

-971.55

0

43.3991385

352.186875

Mesh Refinement

Mesh Size

Locations

Mesh Size

Locations

2.00 mm element size; 1.80 mm min

 

6mm max everywhere else

 

Results

Yeild Strength 505 MPa

Case

Max Stress (MPa)

Model

Case

Max Stress (MPa)

Model

1

48.55

 

2

38.89

3

155.7

4

305.1

5

215.2

 

Potential cutouts

  • using case 4 as it had the max stress

  • additional fillets can be added at edges to reduce potential stress concentrations