Robot Structural Analysis General Discussion

Robot Structural Analysis General Discussion

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Enthusiast
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Post 1 of 10
Accepted Solution

Cylinder mashing problem

523 Views, 9 Replies
11-25-2012 11:55 AM

Hi, I have a problem with the meshing of my cylindrical element.

Whatever I do i cant make more or less then 5 element in the vertical (Z) direction.

 

Thank you in advance!!!

Are you looking for something like that?

See the attached file in order to view the parameters

by the creation of a cylinder

picture 1

 

 

Once the object is created you can with right mouse click, select

Object properties

 

Advanced Options + click

 

+ OK

 

it pops up the cylinder creation palette or window

 

enter the desired side division (like above) and replace the object with the same "object number"

be sure only that the geometry data remains the same like your original

 

 

Additional info to already provided by Rafal:

1/ in case of shell generation by Revolve the circumferential and radial density of FE mesh is controlled in different places - circumferential density in paramaters of revolve, radial density in standard parameters of meshing

2/ the simplest method of creating an opening is selecting finite elements and deleting them - but it is efficient only if size and shape of these finite elements corresponds to the required opening and when FE mesh is frozen (because any mesh regeneration will recreate these finite elements)

3/ opening at the top of the dome can be also created changing the coordinates of the appropriate point of arc - in such case it is necessary to restore the original definition of the axis of Revolve

 

Above actions shown in this video

 

Regards,

Advocate
86 Posts
31 Kudos
4 Solutions
Post 2 of 10

Re: Cylinder mashing problem

11-25-2012 08:58 PM in reply to: sedefass

Are you looking for something like that?

See the attached file in order to view the parameters

by the creation of a cylinder

picture 1

 

 

Once the object is created you can with right mouse click, select

Object properties

 

Advanced Options + click

 

+ OK

 

it pops up the cylinder creation palette or window

 

enter the desired side division (like above) and replace the object with the same "object number"

be sure only that the geometry data remains the same like your original

 

 

Advocate
86 Posts
31 Kudos
4 Solutions
Post 3 of 10

Re: Cylinder mashing problem

11-25-2012 09:41 PM in reply to: sedefass
Autodesk Support
6941 Posts
1487 Kudos
1301 Solutions
Post 4 of 10

Re: Cylinder mashing problem

11-26-2012 12:32 AM in reply to: sedefass

check this way: http://screencast.com/t/COEPNQPQp



Rafal Gaweda
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Enthusiast
30 Posts
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1 Solution
Post 5 of 10

Re: Cylinder mashing problem

11-26-2012 02:04 AM in reply to: sedefass

Thank you both guys, you were very helpful!!!

 

Best regards, 

Stefan

Enthusiast
30 Posts
2 Kudos
1 Solution
Post 6 of 10

Re: Cylinder mashing problem

11-28-2012 10:55 AM in reply to: sedefass

Hi again,

there is a new problem with my model that appeared. Now I have a dome, that I want to mesh in 36x10 elements, but the program makes the 36x36 (I need 36 meridian elements and 10 radial)

 

 

Enthusiast
30 Posts
2 Kudos
1 Solution
Post 7 of 10

Re: Cylinder mashing problem

11-28-2012 12:25 PM in reply to: sedefass

And there came on my mind one more question: is there a way to mace an opening (for example d=150mm) in the center of the dome without modeling it again?

 

Thank you for your attention!

Best Regards,

Stefan

Autodesk Support
6941 Posts
1487 Kudos
1301 Solutions
Post 8 of 10

Re: Cylinder mashing problem

11-29-2012 01:36 AM in reply to: sedefass

there is a new problem with my model that appeared. Now I have a dome, that I want to mesh in 36x10 elements, but the program makes the 36x36 (I need 36 meridian elements and 10 radial)

 

 This way: http://screencast.com/t/IBwwBX4l



Rafal Gaweda
Autodesk Support
603 Posts
370 Kudos
173 Solutions
Post 9 of 10

Re: Cylinder mashing problem

11-29-2012 02:18 AM in reply to: Rafal.Gaweda

Additional info to already provided by Rafal:

1/ in case of shell generation by Revolve the circumferential and radial density of FE mesh is controlled in different places - circumferential density in paramaters of revolve, radial density in standard parameters of meshing

2/ the simplest method of creating an opening is selecting finite elements and deleting them - but it is efficient only if size and shape of these finite elements corresponds to the required opening and when FE mesh is frozen (because any mesh regeneration will recreate these finite elements)

3/ opening at the top of the dome can be also created changing the coordinates of the appropriate point of arc - in such case it is necessary to restore the original definition of the axis of Revolve

 

Above actions shown in this video

 

Regards,



Pawel Pulak
Enthusiast
30 Posts
2 Kudos
1 Solution
Post 10 of 10

Re: Cylinder mashing problem

11-29-2012 03:14 AM in reply to: pp2008

Thank you very much once again, RSAP product supporters!!! The video was very comprehensive!

 

Best regards,

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