I need to make a FEA analysis on a rack and this is my first test on that kind of things..if I want to run it on Simulation xpress how I need to star it?
I'm NOB for FEA analysis....
And here is some more reading material:
Activating and using SOLIDWORKS SimulationXpress
SOLIDWORKS SimulationXpress vs. SOLIDWORKS Simulation
Take Advantage of SOLIDWORKS FREE Tools - SimXpress - Computer Aided Technology
Thanks Dan Pihlaja ....I need to read something before to run it....I need to understand some notions first
Here is what is written for that solution:
When running a static analysis, the following error message appears:
‘Model is unstable. Check that you have applied adequate fixtures to stabilize the model. (Underconstrained Bodies Tool may give insight of free degrees of freedom in the current model)’
When I click on ‘OK’, the analysis fails.
The solver is unable to find a solution for the simulation. One or more components are under-constrained and are therefore free to move any amount in one or more directions. Causes of this behavior include:
• Insufficient fixtures or connectors
• Inadequate contacts and bonding options
• Incorrect study properties
Because multiple conditions can cause this error, you must carefully review your study to determine the appropriate solution.
A good starting point for your investigation is to try each of the following suggestions, and then rerun the study to see if the problem is fixed.
1. Run the ‘Find Underconstrained Bodies’ tool.
a. In the ‘SimulationManager’, right-click on ‘Connections’ > 'Find Underconstrained Bodies'.
b. Click-on ‘Calculate’.
2. Use the ‘Contact Visualization Plot’.
a. In the ‘SimulationManager’, right-click on ‘Connections’ > click on 'Contact Visualization Plot'.
b. Select the 'Include solver generated contacts (mesh required)’ option’ > click on ‘Calculate’.
3. On the ‘Static’ properties page > ‘Options’ > enable the 'Use soft spring to stabilize model' option in the ‘Solver’ group.
4. On the ‘Static’ properties page > ‘Options’ > enable the ‘Simplified’ option in the ‘Incompatible bonding options’ group.
5. Remesh using the 'Draft' quality.
6. If any solid body is treated as ‘Rigid’, make the solid body ‘Deformable’.
7. Incrementally exclude some bodies from the analysis that you suspect are not bonding to the rest of the geometry correctly.
Based on a careful review of the results you obtain, you can identify the cause and resolve the problem.
If you are not able to resolve the problem, seek help from peers or contact your technical support provider.
Thanks again pal...
I usually avoid beams.
Try to remove holes, parts and features that don't needed in FEA.
Like nuts and bolts.
Saving as single part file and combine it all to remove interference.
I need to see how much weight this can take:
Of course sim can't mesh and run.
Save your file as a single part and attach.
Thanks I will export it in one single file as one solid...I will test it and share it... thanks Frederick Law
Just a heads up...
We do a lot of racks and frames similar to that.
We have simplified versions of many of our more commonly used weldment profiles without the radii on the corners.
We re-model the basic structure and then merge into a single body part.
Retrieving data ...