FSU-01 Hub V9.2

Owned by Katherine Nguyen
Last updated: Jun 23, 2023
5 min read

The Hub

Model Version: 9.2

Material: AISI 4340 Steel

Yield Strength: 4.600e+08

Validation: June 23rd, 2023

By: Katherine Nguyen

Loading

  • Took the resultant of the Y and Z forces

  • Converted Mx into a force on the Y-Z plane

  • Combined the full Mx force and the full Ryz into a single vector (for each of the three pin holes)

    • The hub will only be in contact with two pins at a time and determined which two pins would be in contact by which of the three forces would be resisted by the least material in each case

    • To view calculations for vectors: see Katherine’s notes

Loading Case #1:

Rim to Hub

0

2096.57

0

-6.3316414

0

-50.0870573

Loading Case #2:

Rim to Hub

-1080.4

2160.8

1080.4

-308.173296

22.547948

-353.269192

Resultant Mx and Fy & Fz on top hole (front view)
Resultant Mx and Fy & Fz on left hole (front view)

 

 

 

 

Loading Case #3:

Rim to Hub

759.92

1519.85

759.92

-216.759611

20.4494472

175.8604475

 

Loading Case #4:

Rim to Hub

-1381.27

2762.55

-1381.27

377.307683

-37.1699757

-451.6479035

 

 

 

 

 

Loading Case #5:

Rim to Hub

971.55

1943.1

-971.55

265.388598

-20.2762485

224.836101

Fixtures

 

 

Mesh Refinement

Element size 0.95 mm; min 0.855 mm

Results

All mesh are at 2mm node size for the following results.

Case #2: Accel + Right Turn

Max: 2.017e+08

Safety Factor: 2.330

 

 

Case #3: Accel + Left Turn

Max: 7.694e+07

Safety Factor: 1.661

 

 

 

 

Case #4: Brake + Right Turn

Max: 1.306e+08

Safety Factor: 3.599

 

 

 

 

Case #5: Brake + Left Turn

Max: 9.647e+07

Safety Factor: 1.324

 

 

 

 

Recommendations

The hub is passing in all cases, with a safety factor of above 1.324. To improve the simulation, add threads onto the corresponding threaded part of the hub, especially for the positive X forces?