barrti
Mechanical
- Apr 19, 2012
- 16
Greetings,
1. I've been trying to do a shrink fit between a simple cylindrical steel hub (OD = 216 mm)and a solid round steel shaft (dia 140 mm) (using ASM).
2. I've been using solid brick elements for both parts.
3. I draw the parts assembled in inventor with zero mm radial interference
4. I import into ASM
5. I mesh with 8 node bricks, both to say 5 mm element size
6. I change contact to shrink fit/with sliding, friction to 0.15
7. I enter radial interference as 0.18 mm
8. I solve with either sparse solver or automatic
9. I'm getting stresses higher than I thought. I'm expecting 150 N/mm^2 and getting many times this
I've spent quite a while on this. Could someone please give some suggestions on shrink fits using ASM?
Do the solver and contact settings (in the analysis parameter section) affect accuracy?
Regards and thanks
1. I've been trying to do a shrink fit between a simple cylindrical steel hub (OD = 216 mm)and a solid round steel shaft (dia 140 mm) (using ASM).
2. I've been using solid brick elements for both parts.
3. I draw the parts assembled in inventor with zero mm radial interference
4. I import into ASM
5. I mesh with 8 node bricks, both to say 5 mm element size
6. I change contact to shrink fit/with sliding, friction to 0.15
7. I enter radial interference as 0.18 mm
8. I solve with either sparse solver or automatic
9. I'm getting stresses higher than I thought. I'm expecting 150 N/mm^2 and getting many times this
I've spent quite a while on this. Could someone please give some suggestions on shrink fits using ASM?
Do the solver and contact settings (in the analysis parameter section) affect accuracy?
Regards and thanks