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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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Hole in plate

Posted 2012年2月23日 GMT-5 18:02 Geometry Version 4.2 7 Replies

Joe Machado
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Hello all! I am new to comsiol and ha ve a basic question. I am trying to put an inlet hole in a modle and am having a bit of trouble on how to put a hole in a surface. I also need to creat a plate with 40 3/8 in holes in it. If there is a quick way to do this it would be very helpful.
Thank you,
Joe bob
7 Replies Last Post 2016年7月11日 GMT-4 02:52
Alexander Kuznetsov
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Posted: 1 decade ago 2012年2月23日 GMT-5 21:10
you can create 1 hole and than you "array" command.
you can create 1 hole and than you "array" command.
Joe Machado
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Posted: 1 decade ago 2012年2月23日 GMT-5 22:05
That sounds good but how do I make the first hole? It's my first day.
That sounds good but how do I make the first hole? It's my first day.
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 2012年2月24日 GMT-5 01:49
Hi
If you have a plate then you add a cylinder in the middle, with the same top and bottom boundary, then COMSOl will unite these and make 2 "entities" for the FEM, you can then define the plate with the hole as one metal domain, and the cylinder hole as air or water or whatever.

This is one of the strengths of COMSOl you can have overlappiong objects (geometrical volumes) and these will be combined bis the Finish-Union node into entities = domain boundaries, edges points that are analysed and all geoemtrical intersection are made for you

--
Good luck
Ivar
Hi If you have a plate then you add a cylinder in the middle, with the same top and bottom boundary, then COMSOl will unite these and make 2 "entities" for the FEM, you can then define the plate with the hole as one metal domain, and the cylinder hole as air or water or whatever. This is one of the strengths of COMSOl you can have overlappiong objects (geometrical volumes) and these will be combined bis the Finish-Union node into entities = domain boundaries, edges points that are analysed and all geoemtrical intersection are made for you -- Good luck Ivar
Joe Machado
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Posted: 1 decade ago 2012年2月24日 GMT-5 02:42
I was thinking along those lines when I saw air and water in the materials tab, but wasn't sure if it would work that way. Thank you
Joe Bob
I was thinking along those lines when I saw air and water in the materials tab, but wasn't sure if it would work that way. Thank you Joe Bob
Dennis Brown
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Posted: 1 decade ago 2012年2月24日 GMT-5 08:48
I did a really simple example of playing with geometry. Just follow it step by step to see what I did. This may give you some ideas on how to go about making structures. Also download some of the examples in the gallery and work through them. Avoid the files that just has you importing in an already built .mphbin file. Any experience you can get building in the GUI will help a lot.
I did a really simple example of playing with geometry. Just follow it step by step to see what I did. This may give you some ideas on how to go about making structures. Also download some of the examples in the gallery and work through them. Avoid the files that just has you importing in an already built .mphbin file. Any experience you can get building in the GUI will help a lot.
Joe Machado
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Posted: 1 decade ago 2012年2月24日 GMT-5 13:06
Thank you that helped me alot.
Thank you that helped me alot.
Seojoo Lee
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Posted: 8 years ago 2016年7月11日 GMT-4 02:52
Thanks for your Clear example !!
Thanks for your Clear example !!

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