Hello
I use Solidworks 2016 Simulation to size a steel structure
I stumble over a detail:
When stressed, the 2 angles (blue) will rotate and spread
Hinge-type fasteners (green arrows) do not allow lateral movement
What contact constraint can I apply to properly simulate this structure? (a pivot sliding along the horizontal plane)
Philippe
Hello @Philippe
Can you post your piece it will be easier to explain to you
You have to put two "plane supports" on the edges that are in contact with ??? which I assume is the equivalent of the floor, then block an edge of the angle that is perpendicular to the ground (otherwise the simulation will be embossed).
You should also reconsider the way you fix the room in the axial direction, you must get as close as possible to real life.
Kind regards
Hello Houston!
Do you have a problem?
Sorry for the delay,
Thank you for your indication
On the other hand, the "imposed displacement\plane support" function does not allow me to select an edge
??
Hello Philippe
I'll look at it right away
Kind regards
Hello@philippe
I suggested earlier that you use a virtual wall but you made another choice.
So I went back to the calculation using a virtual wall which is, let's remember it, the equivalent of an anvil in your case. The advantage is that it avoids creating another part, the anvil, but above all there is no mesh of the anvil to be made, which simplifies the calculations a lot since the number of knots in contact is very small (less than a hundred), this reduces the number of DDL to be calculated because above all your framework rests on only two distant edges.
For the edges, to make it a little easier, I made a radius on the edge of 0.5mm to facilitate the rotation of the angle.
In short:
For a force of 1600 N
you have a safety coeff of 3 or even slightly higher than 3
a maximum displacement of 1.9 mm
and Von mises NS
If you are interested, I can give you a mini summary of the different contacts used. Although you are using the XpressSimulation version.
DRAT! I just lost the file, I would have to start the settings again but nothing undoable.
Kind regards
PS: if your radiated square tube does not need to be tangent to the outside radius you could significantly improve the solidity of the whole with lower thicknesses without giving up on the solidity of the whole. Also by having a TIG/MIG weld between the square tube and the bent sheet. But as it is, your security coeffs are not bad. ;-)
Good evening@Philippe
Here is an attached summary of the actions to be taken in simulation and your model to answer your initial question
Kind regards
Good evening
A little bonus!
A video that shows the movement under the pressure of the somital ;-)
Kind regards
Or else we cut the part in 2 in the middle, a plane support to vertically block the remaining angle and a symmetry constraint on the cutting plane: it allows the calculation to run faster since there are half as many knots :-)