Hello everyone,
Being new on the forum I will quickly introduce myself:
My name is Leo, I am a Locksmith by trade and I am currently training in architecture in Bari (Italy).
I am currently working on a prototype of a bent sheet metal staircase.
My problem is the following:
I made my walk entirely in folded sheet metal (dimension and angle studied on Rhinoceros beforehand). But when I do my static simulation, the mesh automatically crashes with the following message (photo attached).
So I refined my mesh as shown but after a quick check, my smallest edges are 0.0001mm. so imagine the time it would take for the computer to calculate such a small mesh...
I'm coming to you if anyone has ever had this kind of problem, or it's simply the complexity of the bent sheet metal that misleads the software.
capture.jpg
Small precision,
I managed to make a mesh, but this one doesn't look like my piece and is a large diagonal mesh plate...
quite incomprehensible I find that my piece is in 3 dimensions.
capture.jpg
Hello @leo
Before having seen the piece, it would make one think of volumes that would not be joined (merged).
To say anything relevant, you would have to look at the play or the ASM. Can you post it with pack and go by attaching your simulation parameters and/or the results.
Kind regards
yes I understand what you mean, but since it's only one and only folded sheet metal I find it strange...
I am sending you the file in private message.
Hello Leo
After analyzing your file there are no bugs but only settings to add.
You have a lot of areas that require a more targeted mesh (the 345° fold and mini openings (buttonholes, holes with countersunk head, etc.)
Just do mesh checks on all these areas (standard function of SW simulation and render everything in order. So you can have some localized areas with a very, very fine mesh and the other more spacious areas with coarser meshes.
The fact of having areas with different meshes makes it possible to reduce the number of connection points and therefore the number of DDLs which could be several million and therefore which would make an endless simulation without any added value if we made a very fine mesh over the whole part which is very large in your case.
Kind regards
PS: if the answers given are satisfactory for you, then you can close the topic by selecting one of the best answers ;-)
Below is an example of a mesh control
To make simulations, do not hesitate to make a disjoint file of the design CAD file to simplify the model: removal of holes, fillets, etc. and add what is missing (typically the weld seams to be drawn in volume).
Thank you Froussel,
Yes, I understand the principle and I will look in this direction.
I noticed that Solidworks offers these simplifications but in my case doesn't offer anything.
For the moment, thanks to Zozo, I have made a lot of progress and the simulation is progressing well. But thank you all the same for the advice.
How does Zono !!!! Why not Zonar at the same time (hihihi !!! )
Indeed I ripped on the keyboard... I took the liberty of modifying my answer ahahah