Simulation of Belleville Spring Actuation
Simulation of Belleville Spring Actuation
(OP)
Does anyone have experience modeling the behavior of a belleville spring under compressive load? I would like to determine the force at which the spring actuates, or perhaps buckling is the correct term.
Should I perform a buckling analysis? I can run experiments to determine now well reality compares with theory later, but I would like to at least get started with some intelligent initial guesses via FEA if possible.
Thanks!
Should I perform a buckling analysis? I can run experiments to determine now well reality compares with theory later, but I would like to at least get started with some intelligent initial guesses via FEA if possible.
Thanks!






RE: Simulation of Belleville Spring Actuation
Here is why. (At least in My Humble Opinion.)
1) Large deflection solutions are not very effective in Cosmos.
2) Element Shape is not effective for the belleville type spring.
3) Too many non-linearities are present in the system.
It may be possible to get a good model using Geostar, but thats a whole different ball of wax.
Nick
I love materials science!
RE: Simulation of Belleville Spring Actuation
Regards
RE: Simulation of Belleville Spring Actuation
It's pre-loaded to a certain force, then additional forces are applied until the washer snaps down, thus the force/deflection curve has multiple profiles. That's the force I'm trying to determine.
It's really not worth the time to model this when I can run a series of simple experiments and get real results, I was just hoping that I was overlooking something simple.
Thanks!
RE: Simulation of Belleville Spring Actuation
(Although you might try the old school theroy of bellvilles... I forget the guys name who came up with them. Maybe try getting hold of Associated Spring, they have a pretty good design handbook.)
RE: Simulation of Belleville Spring Actuation
They have force-deflection curves. I would also contact them via email if you need any assistance.
I would also check with phoenix spring. They're a spring specialist. I had them make a custom spring for my needs, pricey, but you're paying for that design knowledge.
http://www.phoenix-spring.com/
Best Regards,
Heckler
Sr. Mechanical Engineer
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