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Concave Workplane / Concave Geometry

Posted 9 feb 2015, 04:06 GMT-5 RF & Microwave Engineering, Geometry Version 4.4, Version 5.0 4 Replies

Osman Sayginer
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Hi,

Do you know if there is a way in order to draw attached geometries in COMSOL?

Or any idea if I am able to create a concave workplane?

Thanks in advance.

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4 Replies Last Post 11 feb 2015, 11:10 GMT-5
Lasse Murtomäki
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Posted: 10 years ago 10 feb 2015, 14:38 GMT-5
This is not very elegant, but will this do? If you don't have version 5.0, this is the procedure:

1. Create a hollow cylinder and cut it with, e.g. blocks to a desired shape.
2. Draw another block across this tubular wall.
3. Partition the last block.
4. Convert this partition to curves.
5. Remove extra edges.

br
Lasse
This is not very elegant, but will this do? If you don't have version 5.0, this is the procedure: 1. Create a hollow cylinder and cut it with, e.g. blocks to a desired shape. 2. Draw another block across this tubular wall. 3. Partition the last block. 4. Convert this partition to curves. 5. Remove extra edges. br Lasse

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Jeff Hiller COMSOL Employee

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Posted: 10 years ago 10 feb 2015, 15:07 GMT-5
As an alternative to Lasse's approach:
Since it looks like you have a CAD software, you could import the geometry using the COMSOL CAD Import Module, rather than redrawing the geometry using COMSOL's own drawing tools. The CAD Import Module supports a wide range of formats, including Parasolid, step, sat, IGS, as well as the native formats of a number of common CAD programs (See www.comsol.com/products/specifications/cad/ for more details).
Best,
Jeff
As an alternative to Lasse's approach: Since it looks like you have a CAD software, you could import the geometry using the COMSOL CAD Import Module, rather than redrawing the geometry using COMSOL's own drawing tools. The CAD Import Module supports a wide range of formats, including Parasolid, step, sat, IGS, as well as the native formats of a number of common CAD programs (See http://www.comsol.com/products/specifications/cad/ for more details). Best, Jeff
Osman Sayginer
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Posted: 10 years ago 11 feb 2015, 10:57 GMT-5

This is not very elegant, but will this do? If you don't have version 5.0, this is the procedure:

1. Create a hollow cylinder and cut it with, e.g. blocks to a desired shape.
2. Draw another block across this tubular wall.
3. Partition the last block.
4. Convert this partition to curves.
5. Remove extra edges.

br
Lasse


Thank you very much for your help. Actually I have already tried what you mentioned however I have stuck when I was trying to draw mounted concentric cylinders which are mounted on the concave surface. Do you have any idea if I can draw those cylinders too?
[QUOTE] This is not very elegant, but will this do? If you don't have version 5.0, this is the procedure: 1. Create a hollow cylinder and cut it with, e.g. blocks to a desired shape. 2. Draw another block across this tubular wall. 3. Partition the last block. 4. Convert this partition to curves. 5. Remove extra edges. br Lasse [/QUOTE] Thank you very much for your help. Actually I have already tried what you mentioned however I have stuck when I was trying to draw mounted concentric cylinders which are mounted on the concave surface. Do you have any idea if I can draw those cylinders too?
Osman Sayginer
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Posted: 10 years ago 11 feb 2015, 11:10 GMT-5

As an alternative to Lasse's approach:
Since it looks like you have a CAD software, you could import the geometry using the COMSOL CAD Import Module, rather than redrawing the geometry using COMSOL's own drawing tools. The CAD Import Module supports a wide range of formats, including Parasolid, step, sat, IGS, as well as the native formats of a number of common CAD programs (See www.comsol.com/products/specifications/cad/ for more details).
Best,
Jeff


Thank you very much for your advise. I have already tried to Import my CAD file as well. However I have got some geometry issues. So my simulation didn't work properly. I think the attachment explains my problem much better.
Do you have any suggestion for this problem?
Thank you.

Osman
[QUOTE] As an alternative to Lasse's approach: Since it looks like you have a CAD software, you could import the geometry using the COMSOL CAD Import Module, rather than redrawing the geometry using COMSOL's own drawing tools. The CAD Import Module supports a wide range of formats, including Parasolid, step, sat, IGS, as well as the native formats of a number of common CAD programs (See http://www.comsol.com/products/specifications/cad/ for more details). Best, Jeff [/QUOTE] Thank you very much for your advise. I have already tried to Import my CAD file as well. However I have got some geometry issues. So my simulation didn't work properly. I think the attachment explains my problem much better. Do you have any suggestion for this problem? Thank you. Osman

Attachments:

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