if you have sim pro and above, this would probably be better done with 2d study
also i think you've got contact and fixtures mixed up, you'll need no penetration contact between the ellipse and the plates (right now you have bonded)
but once you do that, your problem will be unstable. you can get some stability by making it a quarter symmetric model.
i would actually start a little simpler and just run this as a part analysis to start
I would just like to reinforce what Jared said. A 2D quarter symmetry model will run much quicker and won't have any stability problems. But in real life, you are going to have stability problems.
Jared and Jerry;
Thanks for your comments;
I am working on a project from the industry and the actual model is a 3D simulation.
I am not allowed to attach it here; the company asked me to be discrete regarding this project.
Firstly, I started with a 2D simulation and run the simulation but I have to run the 3D simulation; the actual problem is “Asymmetry.” It is required to place the model between two parallel plates and squeeze it under certain pressure. The ideal is to have roller between the semi-circles and flat plates.
I would be grateful if you could provide me some comments how to deal with this problem.
can you post a picture that shows the whole model so that we know why it has to be done with 3d
why does it have to be compressed between the 2 plates?
what prevents it from slipping in the physical test? can you describe what it is and how it is done?
i don't understand your comment about roller between semi circles. it might be helpful to diagram out what you're trying to describe.
This is a problem from a company which I am working; I am not allowed to distribute the whole model; the company plans to file a patent on that. The objective is to optimize the strength and mass of a small structure that needs to retain certain shape characteristics.
This is in the problem definition.
- the structure should resist cracking when squeezed between 2 flat plates.
It's an optimization problem which involes mass/volume and load constraints;
The top and the bottom of the structure (which are in contact with two flat plates) are semi circles similar to what I have in the attachement above; It's requrired that the the top and bottom surface can slip on the flat surfaces;
The ellopsi and plates were assembled and matted by Tangent and Width constraints (= they can't move relative together;).
Thanks for your time and consideration;
hi, i would recommend modeling something "similar" that you can post up here and get help with.
if you'd like us at hawk ridge systems to help you with the analysis, we sign NDAs for pretty much every project for the reason that you describe. Feel free to contact me at firstname.lastname@example.org to get things going.
a couple of notes:
1. how are you going to address "cracking" in solidworks simulation? the software will not cause parts to "Crack", you will need to use the results from the simulation to determine if cracking is happening
2. mates do not apply in solidworks simulation. they need to be replaced with restraints and contact in solidworks simulation
3. i highly suspect this will need to be nonlinear
I have a question regarding apply force/pressure; is there any way to apply force at an arbitrary surface in Y direction in SolidWorks?
Because the software has options apply load normal and tangent to the surface.
Thanks for your help;
what software are you using? solidworks sim or xpress? you should have the option to choose a reference (like a sketch) to define the direction
Thank you very kindly, Jared;
Hi Jared, I have the same problem, then I try to use soft sring to stabel model.
but at the report, i have problem because the displacement is too large.
how i to solve this problem?