Gaps between Extruded surfaces in ProE
Gaps between Extruded surfaces in ProE
(OP)
I'm currently working on a simplified model of a cylinder with angle irons welded around its circumference. A basic drawing is available here: http://www.csn.ul.ie/~ceason/proeng/cylinder.jpg
The cylinder is made by extruding a trimmed circle to make the first surface. The angle irons were drawn and extruded on seperate sketches.
I plan to export the surface model to ProMechanica (Via IGES, Integrated mode doesn't seem to support surfaces at all) for analysis as a shell element model, but there are gaps between the surfaces defining the angle irons and the curved surface. I have checked and the extruded angle iron sketch is constrained to have its endpoint on the cylinder. ProM's Autoassociate isn't able to fix the problem after the surfaces are imported either.
I've looked at ProE's merge/intersect options for surfaces, but they won't join the surfaces without trimming at least one of them. All the surfaces shown in the picture are needed for the model.
The best solution I've got so far is to export the model as a wireframe, redraw the failed edges or edges with extra vertices (that shouldn't be there) and add the surfaces as quad and tri patches.
Incidentally, Is there an option somewhere to allow ProE to generate a surface from a loop of 4 non coplanar curves? I've found the one to do more than 4. Is there an equivalent to the Quad and Tri Patch options on ProMechanica in ProEngineer?
I'm relatively new to the surface features of ProE, mainly because I've never needed them, so all advice will be appreciated
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The cylinder is made by extruding a trimmed circle to make the first surface. The angle irons were drawn and extruded on seperate sketches.
I plan to export the surface model to ProMechanica (Via IGES, Integrated mode doesn't seem to support surfaces at all) for analysis as a shell element model, but there are gaps between the surfaces defining the angle irons and the curved surface. I have checked and the extruded angle iron sketch is constrained to have its endpoint on the cylinder. ProM's Autoassociate isn't able to fix the problem after the surfaces are imported either.
I've looked at ProE's merge/intersect options for surfaces, but they won't join the surfaces without trimming at least one of them. All the surfaces shown in the picture are needed for the model.
The best solution I've got so far is to export the model as a wireframe, redraw the failed edges or edges with extra vertices (that shouldn't be there) and add the surfaces as quad and tri patches.
Incidentally, Is there an option somewhere to allow ProE to generate a surface from a loop of 4 non coplanar curves? I've found the one to do more than 4. Is there an equivalent to the Quad and Tri Patch options on ProMechanica in ProEngineer?
I'm relatively new to the surface features of ProE, mainly because I've never needed them, so all advice will be appreciated





RE: Gaps between Extruded surfaces in ProE
Feature --> Create --> Surface --> New --> Advanced --> Boundaries --> Done --> Blended Surf --> Done
Choose two of them for the first direction and the other ones for the second direction.
Using “Merge” or “Join” for surfaces is for creating closed quilts, that’s why you have that problem. You can’t merge surfaces and have multiple closed volumes in the same quilt.
im4cad
Pro Design Services, Inc.
http://www.cadproe.com/pds/home.asp
RE: Gaps between Extruded surfaces in ProE
RE: Gaps between Extruded surfaces in ProE
Also, I think there's a way to "zip the gaps" between surfaces, but I haven't yet found or used this feature, I've only read about it.
RE: Gaps between Extruded surfaces in ProE
Best regards