fem analisys on carbon tube frame gmesh warnings...
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fem analisys on carbon tube frame gmesh warnings...
I am running windows 10 freecad .17 13522 git
I assembled some parts the dragonplate carbon fiber pieces I modeled using assembly2.
Now I get a error when I gmesh it.
The other generator works but the solver does not it says 0.0: Check dependencies...
I am using tubes maby that shape is not good for this?
0.0: We are going to start ...
0.0: Start Gmsh ...
3.7: Gmsh had warnings ...
3.7: Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : Surface mesh: worst distortion = -6.45584 (avg = 0.496641, 418 elements with jac.
3.7: Gmsh done!
I assembled some parts the dragonplate carbon fiber pieces I modeled using assembly2.
Now I get a error when I gmesh it.
The other generator works but the solver does not it says 0.0: Check dependencies...
I am using tubes maby that shape is not good for this?
0.0: We are going to start ...
0.0: Start Gmsh ...
3.7: Gmsh had warnings ...
3.7: Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : OCC Project Point on Surface FAIL Warning : Surface mesh: worst distortion = -6.45584 (avg = 0.496641, 418 elements with jac.
3.7: Gmsh done!
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Re: fem analisys on carbon tube frame gmesh warnings...
Try to use 2D-shell elements.
The "pipe" you see has a diameter of 10 mm and a length of 1000 mm.
In FEM, you can define a shell thickness. No need to use 3D-meshing.
The "pipe" you see has a diameter of 10 mm and a length of 1000 mm.
In FEM, you can define a shell thickness. No need to use 3D-meshing.
Re: fem analisys on carbon tube frame gmesh warnings...
I got errors again. I did not go that far I made a cube chamfered and the other one like that some edges. Gmeshed it and got errors. A normal cube no error Because I was surprised then and wondered if I had something installed wrong but it is just win 10 and the latest stable freecad release. ???
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- Location: Germany
Re: fem analisys on carbon tube frame gmesh warnings...
Can you post your FC-file with your model?josheeg wrote: ↑Sun Jul 22, 2018 5:20 am I got errors again. I did not go that far I made a cube chamfered and the other one like that some edges. Gmeshed it and got errors. A normal cube no error Because I was surprised then and wondered if I had something installed wrong but it is just win 10 and the latest stable freecad release. ???
To reduce file-size: in model-tree, right click on FEM-mesh, then "clear mesh"
Re: fem analisys on carbon tube frame gmesh warnings...
I got a solver to work! I tried re-running the examples they ran. I tried asking myself what is different.
Material I was selecting aluminum... in examples I seen calculix steel and wood for the fem popsicle stick bridge example.
If you select aluminum it stops at check references...
I made a simple half frame out of a block sketch extruded .5"
The shell tool in parts workbench did not seem to work.
The fem shell tool looks like it is for faces but realy I would want a hollow of my 3d model?
Well I am glad to see the simulation run now I wonder if I can make the dragon plate carbon fiber tube material.
Material I was selecting aluminum... in examples I seen calculix steel and wood for the fem popsicle stick bridge example.
If you select aluminum it stops at check references...
I made a simple half frame out of a block sketch extruded .5"
The shell tool in parts workbench did not seem to work.
The fem shell tool looks like it is for faces but realy I would want a hollow of my 3d model?
Well I am glad to see the simulation run now I wonder if I can make the dragon plate carbon fiber tube material.
Re: fem analisys on carbon tube frame gmesh warnings...
here is all of them but one.
- Attachments
-
- skeleton frame.FCStd
- (207.53 KiB) Downloaded 23 times
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- pcft_5_4_98_in.FCStd
- (10.82 KiB) Downloaded 36 times
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- pcft_5_4_72_in.FCStd
- (10.81 KiB) Downloaded 39 times
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- pcft_5_4_48_in.FCStd
- (10.77 KiB) Downloaded 23 times
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- pcft__5_4_24_in.FCStd
- (10.83 KiB) Downloaded 26 times
Re: fem analisys on carbon tube frame gmesh warnings...
oh 2 here are all of them.
- Attachments
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- threaded_tube_connector.FCStd
- (14.78 KiB) Downloaded 21 times
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- cube_v_threaded_1_in.FCStd
- (38.3 KiB) Downloaded 40 times
Re: fem analisys on carbon tube frame gmesh warnings...
gmesh does not seem to close and it throws a error when trying to run the solver volume in geometry like error.
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Re: fem analisys on carbon tube frame gmesh warnings...
Hi josheeg,
I had a look at your files.
The easiest way is to calculate the tubes "by hand" and use FEM only
for the connection-cubes.
Rerun FEM:
Load my FC-file.
In model-tree: doubleclick an analysis activates FEM-wb
doubleclick on mesh (model-tree) open mesh-dialog, remesh.
run solver.
For me alu works.
Re: fem analisys on carbon tube frame gmesh warnings...
Why would I not assemble them can I just model them all as carbon and watch what changes color and deforms I don't know how to hand calculate the tubes.