Selecting a portion of Cylinder
- AndreaF
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18 years 8 months ago #1046
by AndreaF
Selecting a portion of Cylinder was created by AndreaF
Hi to all.
This request is strictly correlated to the one I've posted in the Code Aster Section.
After meshed the object and defined the group of faces (plain faces, cylinder faces and so on) in which way can I select a portion of a Cylindrical surface? (I have to select only a portion of cylindrical surface -> Pin joints -> Hertz Theory. In general I have to select an half of the cylindrical surface coherently with the normal of the force applied to it). In this way I can apply the Force_Face command to it and better simulate the interaction inside a pin joint.
Thanx
Andrea
This request is strictly correlated to the one I've posted in the Code Aster Section.
After meshed the object and defined the group of faces (plain faces, cylinder faces and so on) in which way can I select a portion of a Cylindrical surface? (I have to select only a portion of cylindrical surface -> Pin joints -> Hertz Theory. In general I have to select an half of the cylindrical surface coherently with the normal of the force applied to it). In this way I can apply the Force_Face command to it and better simulate the interaction inside a pin joint.
Thanx
Andrea
- Joël Cugnoni
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18 years 8 months ago #1052
by Joël Cugnoni
Joël Cugnoni - a.k.a admin
www.caelinux.com
Replied by Joël Cugnoni on topic Re:Selecting a portion of Cylinder
Hello,
How does your cylindrical surface look like? Is it just one single surface for the whole cylinder (360°)?
If you only have one single surface or if the surface is cut but the cuts do not correspond to what you want to select, you will need to partition the surface.
The simplest way to do this partition is (in the GEOM module):
1) create a plane (by extrusion of a line or direct definition). To succeed the partitionning plane must be larger than your 3D object (need to have a clean intersection)
2) create the partition: menu Operation->Partition and select your 3D object as the base object and the plane as the cutting object.
3) repeat these steps until you have all the desired surfaces.
Then you can create the necessary groups: first in GEOM use New entity -> Groups and then reuse the GEOM groups in MESH to define your FE groups.
Regards,
Joël Cugnoni
www.caelinux.com
How does your cylindrical surface look like? Is it just one single surface for the whole cylinder (360°)?
If you only have one single surface or if the surface is cut but the cuts do not correspond to what you want to select, you will need to partition the surface.
The simplest way to do this partition is (in the GEOM module):
1) create a plane (by extrusion of a line or direct definition). To succeed the partitionning plane must be larger than your 3D object (need to have a clean intersection)
2) create the partition: menu Operation->Partition and select your 3D object as the base object and the plane as the cutting object.
3) repeat these steps until you have all the desired surfaces.
Then you can create the necessary groups: first in GEOM use New entity -> Groups and then reuse the GEOM groups in MESH to define your FE groups.
Regards,
Joël Cugnoni
www.caelinux.com
Joël Cugnoni - a.k.a admin
www.caelinux.com
- slittone
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18 years 3 months ago #1300
by slittone
Replied by slittone on topic Re:Selecting a portion of Cylinder
Hello everybody,
i'm an absolute beginner with Salome and code Aster and this is my first time in this forum.
I think i have a problem quite similar to Andrea's one: i would like to define working planes or surfaces (e.g. the medium plane of a part or the intersection with a datum plane) which are not generated with the EXPLODE command: i need them to apply contraints and loads.
Is the partition/cutting the only way i can reach this purpose?
I thank you in advance.
Regards
Stefano
i'm an absolute beginner with Salome and code Aster and this is my first time in this forum.
I think i have a problem quite similar to Andrea's one: i would like to define working planes or surfaces (e.g. the medium plane of a part or the intersection with a datum plane) which are not generated with the EXPLODE command: i need them to apply contraints and loads.
Is the partition/cutting the only way i can reach this purpose?
I thank you in advance.
Regards
Stefano
- Joël Cugnoni
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18 years 3 months ago #1301
by Joël Cugnoni
Joël Cugnoni - a.k.a admin
www.caelinux.com
Replied by Joël Cugnoni on topic Re:Selecting a portion of Cylinder
Hello,
Yes you are right, for this task, you will need to partition your volume to create new faces, and then use thes faces to apply loads etc...
Regards,
Joël Cugnoni
Yes you are right, for this task, you will need to partition your volume to create new faces, and then use thes faces to apply loads etc...
Regards,
Joël Cugnoni
Joël Cugnoni - a.k.a admin
www.caelinux.com
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