(sim file goes here)
The Spindle
Fixtures
Remove the automatically created global bonded interaction and replace it with a component contact interaction
Fully fix the top and bottom faces of the dummy upright
Loading
Fx
+ Fx acts on the inner face of the thread
-Fx is ignored
Fy & Fz:
Fy and Fz are combined into their resultant force and the angle that force acts in is found using trig
SET ALL FORCES TO “TOTAL” AND NOT “PER ITEM”
Loading Cases
CASE 1
Node | Fx | Fy | Fz | Fyz | Fyz angle (deg) |
|---|---|---|---|---|---|
Outer Hub to Spindle | 0 | -390.415332 | 0 | -390.415332 | -90 |
Inner Hub to Spindle | 0 | 2486.985332 | 0 | 2486.985332 | 90 |
CASE 2
Node | Fx | Fy | Fz | Fyz | Fyz angle (deg) |
|---|---|---|---|---|---|
Outer Hub to Spindle | 0 | -8555.016 | -113.004 | 8555.762308 | 89.24321875 |
Inner Hub to Spindle | -1080.4 | 10715.816 | 1193.404 | 10782.065 | 83.64524308 |
CASE 3
Node | Fx | Fy | Fz | Fyz | Fyz angle (deg) |
|---|---|---|---|---|---|
Outer Hub to Spindle | 759.92 | 5451.294527 | -203.53533 | 5455.092909 | -87.86173709 |
Inner Hub to Spindle | 0 | -3931.44453 | 963.4553297 | 4047.777448 | -76.23024273 |
CASE 4
Node | Fx | Fy | Fz | Fyz | Fyz angle (deg) |
|---|---|---|---|---|---|
Outer Hub to Spindle | 0 | -10937.4204 | 369.9563703 | 10943.67547 | -88.06271868 |
Inner Hub to Spindle | -1381.27 | 13699.97036 | -1751.22637 | 13811.44387 | -82.71555523 |
CASE 5
Node | Fx | Fy | Fz | Fyz | Fyz angle (deg) |
|---|---|---|---|---|---|
Outer Hub to Spindle | 971.55 | 6969.427054 | 101.6188784 | 6970.16785 | 89.16464865 |
Inner Hub to Spindle | 0 | -5026.32705 | -1073.16888 | 5139.616237 | 77.94776765 |
Mesh
max node size 3mm
mesh refinement max node size 0.7mm on the thread
Simulation Results
Case # | Max Stress (MPa) | Model |
|---|---|---|
1 | 41.99 |  |
2 | 118.3 | 
|
3 | 81.21 |  |
4 | 151.2 |  |
5 | 103.8 |  |
Recommendations
This iteration of the spindle still passes all of the cases with some MPa’s to spare