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Add air box to a complex geometry via LiveLink for SolidWorks

Posted Oct 31, 2014, 1:50 p.m. EDT Low-Frequency Electromagnetics, Interfacing, Geometry Version 4.4 9 Replies

Tianyu Dong
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Hi folks,

According to LiveLink for SolidWorks Users Guide, the geometry sequence can only contain the LiveLink for SolidWorks, however, one needs to add an additional air box for some physics interfaces, i.e., calculation of the magnetic fields in a computer case. Is it possible to add an air box while keeping the original SolidWorks model? Thanks in advance?

Regards,
Tony
9 Replies Last Post Nov 12, 2015, 3:10 p.m. EST
Michael Abbott
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Posted: 1 decade ago Oct 31, 2014, 7:57 p.m. EDT
Extrude an airbox (or sphere, even better?) in solidworks around your object. Then use the intersect feature to differentiate your domains.
Extrude an airbox (or sphere, even better?) in solidworks around your object. Then use the intersect feature to differentiate your domains.
Tianyu Dong
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Posted: 1 decade ago Nov 1, 2014, 7:39 a.m. EDT
Thanks Michael, but the Intersect Feature cannot be used in the Assembly mode. How to do it now? Thanks.
Thanks Michael, but the Intersect Feature cannot be used in the Assembly mode. How to do it now? Thanks.
Tianyu Dong
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Posted: 1 decade ago Nov 1, 2014, 10:24 a.m. EDT
A solid air volume by using the intersection feature can be generated now, however, I get an error message saying "Intersecting face elements" while meshing. This shouldn't appear. How can I fix it?

Thanks,
Tony
A solid air volume by using the intersection feature can be generated now, however, I get an error message saying "Intersecting face elements" while meshing. This shouldn't appear. How can I fix it? Thanks, Tony
Michael Abbott
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Posted: 1 decade ago Nov 1, 2014, 10:38 a.m. EDT
Did you de-select the box that says merge while in the intersect feature?

If you did that, then go find the error message and the associated boundary and manually mesh those within the physics generated mesh.
Did you de-select the box that says merge while in the intersect feature? If you did that, then go find the error message and the associated boundary and manually mesh those within the physics generated mesh.
Michael Abbott
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Posted: 1 decade ago Nov 1, 2014, 10:44 a.m. EDT
Btw, its much easier to build all your domains/bodies up inside one solidworks .prt file and just make sure you deselect merge results when you extrude and what not to form new domains/bodies. That way you never have to put together the parts in an assembly. And if you need an assembly, you can save the solid bodies into an assembly. Search around on the solidworks forum and you'll find instruction on what I am speaking of. Good luck.
Btw, its much easier to build all your domains/bodies up inside one solidworks .prt file and just make sure you deselect merge results when you extrude and what not to form new domains/bodies. That way you never have to put together the parts in an assembly. And if you need an assembly, you can save the solid bodies into an assembly. Search around on the solidworks forum and you'll find instruction on what I am speaking of. Good luck.
Tianyu Dong
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Posted: 1 decade ago Nov 1, 2014, 11:57 a.m. EDT
Thanks Michael,

The reason that I need an assembly is that I get the model from others and it contains plenty of parts. Parameter studies on geometry is required, that's why I need LiveLinks. Yes, I did not select the "Merge results" option while intersecting, but there still is the mesh error in COMSOL. I will check what's the problem. Thank you for your help anyway.

Regards,
Tony
Thanks Michael, The reason that I need an assembly is that I get the model from others and it contains plenty of parts. Parameter studies on geometry is required, that's why I need LiveLinks. Yes, I did not select the "Merge results" option while intersecting, but there still is the mesh error in COMSOL. I will check what's the problem. Thank you for your help anyway. Regards, Tony
Tianyu Dong
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Posted: 1 decade ago Nov 1, 2014, 12:48 p.m. EDT
Ah, I found the problem: the mesh is not dense enough so that contacted surfaces cannot be reflected while meshing. Thank you, Michael.
Ah, I found the problem: the mesh is not dense enough so that contacted surfaces cannot be reflected while meshing. Thank you, Michael.
Michael Abbott
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Posted: 1 decade ago Nov 1, 2014, 3:33 p.m. EDT
Glad I can help. Best of luck to you.
Glad I can help. Best of luck to you.
Mathew Chung
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Posted: 9 years ago Nov 12, 2015, 3:10 p.m. EST
Hi

I faced a same problem as I add an air box then it comes an error 'Intersecting face elements',
I meshed the domain by domain, and I make it extremely finer meshing the air box but it still failed.
Could u show me some details about the solution about it?

Thank you

Mathew
Hi I faced a same problem as I add an air box then it comes an error 'Intersecting face elements', I meshed the domain by domain, and I make it extremely finer meshing the air box but it still failed. Could u show me some details about the solution about it? Thank you Mathew

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