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June 8, 2001, 11:20 |
Geometry of straight pipe
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#1 |
Guest
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Hello I have problems about how to create the straight pipe with slope 1.19 degree. I do not understand about the axis that i must input the coordinate in the axis block. Please suggest the way to create this model. I just study CFX-5 for one week. Thank you
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June 10, 2001, 11:37 |
Re: Geometry of straight pipe
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#2 |
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If I had to do this I'd create a circle, rotate it by 1.19 degrees, and then extrude the circle the desired length along a direction vector which gives you a 1.19 degree slope.
Maybe you tried this already? Dan. |
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July 16, 2001, 05:36 |
Re: Geometry of straight pipe
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#3 |
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Hi,
I have a similar problem like that of TUM. Dan suggests that you create a circle and extrude. How do you do this??? I can only extrude a surface. Further, I am unable to create surface edges from a circle because, by defualt the surace should have at least 3 edges from 3 curves. All i did was to rotate a point on XY plane 4 times in oder to create a circle(according to example 2 of Build). This worked but is there a shorter method? aoyi aon a circle beneed to re |
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July 16, 2001, 06:32 |
Re: Geometry of straight pipe
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#4 |
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Hi,
how do you extrude a circle? janyatoto |
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July 16, 2001, 21:15 |
Re: Geometry of straight pipe
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#5 |
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You can create a curve which is a circle by simply rotating a point about a center. I think it's under Create->Curve->Revolve.
After that you need to rotate the circle by the desired angle. Transform->Rotate (or something like that), then create a surface by extruding along a direction vector. I think it's under Create->Surface->Extrude. You'll need to add end surfaces to enclose the geometry so that you can make a b-rep. I'd just use trimmed surfaces for these. Also, be careful if you are using CFX-5 before version 5.4. Before that the surface mesher could not mesh periodic (closed) surfaces. If that's the case then you'll need to split the original circle into two pieces. Dan. |
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July 17, 2001, 07:09 |
Re: Geometry of straight pipe
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#6 |
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Hi Dan,
Thanks for responding. For you to create a surface in cfx4.3,(Build) by default you need at least 3 edges, as i said earlier. It was not clear from your contribution how one can do this from a CIRCLE. tHAT IS IF YOU DO NOT STEP BY STEP rotate a point the create curve...revolve thing. Under which menu option (in cfx4.3 build) do you add end surfaces? |
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July 18, 2001, 11:12 |
Re: Geometry of straight pipe
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#7 |
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i have been already to create circle>revolve... After that i exclude the surface of that circle to be the straight. Thank you
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July 18, 2001, 20:33 |
Re: Geometry of straight pipe
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#8 |
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Sorry, I've never done this in CFX-4, so I'm not sure what the procedure would be. The original post was regarding CFX-5.
Dan. |
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