CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens

From Cad to Star-CCM+

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 19, 2007, 09:50
Default From Cad to Star-CCM+
  #1
Kasper Skriver
Guest
 
Posts: n/a
Hi

I am wondering how people are using CAD along with Star-CCM+.

Which format are you exporting and importing?

Importing the stl format turns out bad and the sat(acis) format is not possible.

I prefer to import parasolid in CCM+, but the format is not exported from AutoCad as standard. Can you give advices on how to come from sat to parasolid (is there a thirdparty freeware tool)?

I have seen that Crossroads 3D is a good and free coverter, but I can't find a copy. Anyone?

I know that it is possible in Gambit, but i don't want to rely on Gambit in the future.

BR.

Kasper Skriver
  Reply With Quote

Old   February 19, 2007, 14:36
Default Re: From Cad to Star-CCM+
  #2
SW
Guest
 
Posts: n/a
you need to ask your account manager. he should now what's possible for your case.

  Reply With Quote

Old   February 20, 2007, 05:43
Default Re: From Cad to Star-CCM+
  #3
Tobbe
Guest
 
Posts: n/a
Im exporting iges from ProE and Catia into Ansa, clean and triangulate before export in StarCD format. I then read in the mesh into ProAM and put it into a database file. From there I read it into CCM+. The reason is that if I want to use the function "replace geometry" in CCM+ (really nice when the old solution automatically is transfered to the new modified geometry for restart), the geometry must be in a database file. In CCM+ I, if needed, then wrap the geometry.
  Reply With Quote

Old   February 20, 2007, 06:39
Default Re: From Cad to Star-CCM+
  #4
Kasper Skriver
Guest
 
Posts: n/a
Thank you for your good answer and time..

I don't have access to either ProE, Catia or Ansa. I only have the ability to export from AutoCad2002 in sat format(and I wan't to do so because it gives the best result).

When you say that you write a dbs file, is it then in star-cd version 4? I don't have it yet, since I run windows version(company decided).

BR

Kasper Skriver
  Reply With Quote

Old   February 20, 2007, 06:52
Default Re: From Cad to Star-CCM+
  #5
Balduin Bankerotti
Guest
 
Posts: n/a
Export iges and read it into ProSurf (part of the starcd package) instead of ANSA. From there you can read it into proam, do some cosmetics and go on as described.
  Reply With Quote

Old   February 22, 2007, 16:39
Default Re: From Cad to Star-CCM+
  #6
Chris
Guest
 
Posts: n/a
Why is the STL import bad? What problems are you seeing?

What about using IGES or STEP?

  Reply With Quote

Old   February 23, 2007, 03:20
Default Re: From Cad to Star-CCM+
  #7
Kasper Skriver
Guest
 
Posts: n/a
The STL import from AutoCad is bad because it is made of a very coarse surface of triangles. It is so coarse that for instance a cylinder will have corners instead of a more smooth shape.

Both iges and step would be fine. I have used Gambit before to generate parasolid from sat and the surface is much more smooth once imported in CCM+.

Basically what I need is a plugin for AutoCad that will allow me to export as iges/step/parasolid.

or

I need a freeware program that can convert from sat to iges/step/parasolid.

  Reply With Quote

Old   February 23, 2007, 09:26
Default Re: From Cad to Star-CCM+
  #8
Ben
Guest
 
Posts: n/a
In regards the stl import, you should be able to control the quality of the triangulation from within AUTOCAD. I haven't used it myself but have exported such geometries from SolidWorks (among others) and they usually have some sort of control to increase export quality.
  Reply With Quote

Old   February 26, 2007, 08:39
Default Re: From Cad to Star-CCM+
  #9
Kasper Skriver
Guest
 
Posts: n/a
Thanks,

I was looking for that as an option too, but havent been able to find it in AutoCad.

I look further into it.

Regards, Kasper Skriver

  Reply With Quote

Old   February 26, 2007, 09:56
Default Re: From Cad to Star-CCM+
  #10
Kasper Skriver
Guest
 
Posts: n/a
The parameter to be adjusted is "facetres". Set it to 10 and be happy..

  Reply With Quote

Old   September 11, 2009, 04:50
Default Grid only and no surface
  #11
New Member
 
Jaco
Join Date: Aug 2009
Posts: 5
Rep Power: 17
J-man is on a distinguished road
Hi there

When I import the exported stl (from autocad) it only opens as a grid in pro-surf - there is no surfaces. How would I go about creating surfaces?

Thanx
J-man is offline   Reply With Quote

Old   September 14, 2009, 04:30
Default
  #12
Senior Member
 
Join Date: Mar 2009
Posts: 260
Rep Power: 18
Maddin is on a distinguished road
Do you have the "switch" on for surfaces?
I don't work with autocad for exporting/creating these format.
Most problems I had with surface modells, holes, interceptions etc. are no problem when you create 3D with surface but for CCM it's a big problem.
Maddin is offline   Reply With Quote

Old   September 14, 2009, 06:03
Default
  #13
New Member
 
Jaco
Join Date: Aug 2009
Posts: 5
Rep Power: 17
J-man is on a distinguished road
Hi Maddin

By switched on do you mean the tick box in pro-surf? If so - yes it is switched on.

Cheers
J-man is offline   Reply With Quote

Old   September 14, 2009, 07:21
Default
  #14
Senior Member
 
Join Date: Mar 2009
Posts: 260
Rep Power: 18
Maddin is on a distinguished road
Ups... prosurf I don't have any experience, I thought you have problems in CCM+...
Maddin is offline   Reply With Quote

Old   September 29, 2009, 13:42
Default
  #15
f-w
Senior Member
 
f-w's Avatar
 
Join Date: Apr 2009
Posts: 159
Rep Power: 17
f-w is on a distinguished road
If you still want to convert your ACIS file, try Transmagic Basic (free for 7 days, if it's good consider buying it):
http://www.transmagic.com/products/d...overview-chart

Otherwise, there is this freeware which might add ACIS and Parasolid support in the future:
http://www.cadexchanger.com/formats.html

f-w
f-w is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
how to export a mesh from star design to star cd aounallah Siemens 4 March 6, 2009 07:22
Star Design to Star-CD(Prostar) AB Siemens 5 October 28, 2004 13:21


All times are GMT -4. The time now is 18:53.