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AW: How to constrain a part with contact connection ?

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AW: How to constrain a part with contact connection ?

Solution:
1. No symmetry possible, that would be the best ...
2. A set of springs to ground is a solution, minimum 3 around the axis of
the bolt.
3. A set of beams to a constrained point (all 6 fixed), min 3 around ... )
works too.

The main problem is now a good mesh for contact ...
The solution for the pressed bolt: no automatic connections (otherwise the
contact is connected too !!! - why ???)
The load from the pressed seat is realized from a pressure in the hole and
pressure on the bold in the contact region. (Works better than the geometric
solution)
The result seams to be o.K.
Regards

Uwe Driehaus

engineering office uwe driehaus
gassenfeldweg 10
D-50169 Kerpen

fon : +49 / 2237 / 972338
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Gurus,

I need your help to define a contact analysis, Wildfire2

Simplified situation:
a plate with a hole, constrained in x y z
a bolt with contact in the hole
a simple load, maybe on top surface of the bolt.
The hole is smaller than the bolt (pressed in)
Analysis with thermal load is insufficient constrained. OK. No friction ...

I tried to fix the bolt with a spring longitudinal and rotational , but
wrong results. I tried with beams too, but wrong results ...

I tried to constrain the top surface of the bolt with a circular coord in
theta, but wrong too (no displacement of that surface in generally) Is it a
bug?

Only one way with tongue and groove. There has to be a better way !!! (?)
What is your work around?

TIA
Uwe Driehaus

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