Import CAD model

sajad · February 19, 2012, 13:20

I have a 3D cad model of an existing runner in CATIA (.igs extension) ,l want to do an optimization process on it with Numeca/Design 3D so i have to convert it to .geomturbo format , what's the easiest way to do it?
I tried to do it using "import IGES" & "import & link CAD" options in Autogrid , but it doesn't work, could you tell me what is the problem? and is there any other way to do it?

thanks

Hamidzoka · February 26, 2012, 00:26

"Geomturbo" format generates the blades through the points that define suction and pressure sides and also hub and shroud. So IGES or other formats based on lines and surfaces cannot be directly used to define geomturbo. Therefore you need some handy work in your 3D modeling software to exploit those points to generate your geomturbo file.

Regards

sajad · February 26, 2012, 05:18

thanks for your reply hamid
I think it's easier to "import and link" my cad geometry in autogrid and then export it to .geomturbo format, i have done it for simple geometries (for example 2D geometries of hub & shroud) . but now my problem is to import the 3D geometry of whole runner in autogrid . when I import it in autogrid it doesn't do anything, maybe there is some problem about my geometry?
Regards

Hamidzoka · March 2, 2012, 14:50

Hi,
Maybe there is a problem with your geometry.
normally autogrid accepts simple and basic shapes of blades. in case your model is sophisticated perhaps you need to simplify it.

regards

sajad · March 4, 2012, 06:08

Quote:

Originally Posted by Hamidzoka

Hi,
Maybe there is a problem with your geometry.
normally autogrid accepts simple and basic shapes of blades. in case your model is sophisticated perhaps you need to simplify it.

regards

Hi

I imported my geometry in autogrid finally. but now i have a lot of errors : "discontinuity" in hub & shroud or leading & trailing edge , leading edg or trailing edge "doesn't intersect" hub or shroud , "overlapping" ,etc! i am really confused!

it seems that you are well familiar with this software , could i have your contact information for more help?

(I am master student in elm o sanat university and i couldnt find anyone around that could help me on this software)

Regards

Hamidzoka · March 6, 2012, 00:07

this is my email address: hamid.zoka@gmail.com

regards

JohnnyB · May 2, 2012, 05:15

hello...

watch this: http://www.youtube.com/watch?v=al6VvL6OLTM

Irondome · August 2, 2013, 12:57

Hi friends..

I have a similar problem but, I have .geomTurbo files and have to convert it to igs to generate the blade ?

I am new to catia and donno how to go about it. Can someone please help me.

Thanks a lot

February 19, 2012, 13:20	Import CAD model	#1
sajad New Member sajad Join Date: Aug 2010 Posts: 17 Rep Power: 16	I have a 3D cad model of an existing runner in CATIA (.igs extension) ,l want to do an optimization process on it with Numeca/Design 3D so i have to convert it to .geomturbo format , what's the easiest way to do it? I tried to do it using "import IGES" & "import & link CAD" options in Autogrid , but it doesn't work, could you tell me what is the problem? and is there any other way to do it? thanks

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February 26, 2012, 00:26		#2
Hamidzoka Senior Member Hamid Zoka Join Date: Nov 2009 Posts: 293 Rep Power: 19	"Geomturbo" format generates the blades through the points that define suction and pressure sides and also hub and shroud. So IGES or other formats based on lines and surfaces cannot be directly used to define geomturbo. Therefore you need some handy work in your 3D modeling software to exploit those points to generate your geomturbo file. Regards

February 26, 2012, 05:18		#3
sajad New Member sajad Join Date: Aug 2010 Posts: 17 Rep Power: 16	thanks for your reply hamid I think it's easier to "import and link" my cad geometry in autogrid and then export it to .geomturbo format, i have done it for simple geometries (for example 2D geometries of hub & shroud) . but now my problem is to import the 3D geometry of whole runner in autogrid . when I import it in autogrid it doesn't do anything, maybe there is some problem about my geometry? Regards

March 2, 2012, 14:50		#4
Hamidzoka Senior Member Hamid Zoka Join Date: Nov 2009 Posts: 293 Rep Power: 19	Hi, Maybe there is a problem with your geometry. normally autogrid accepts simple and basic shapes of blades. in case your model is sophisticated perhaps you need to simplify it. regards

March 6, 2012, 00:07		#6
Hamidzoka Senior Member Hamid Zoka Join Date: Nov 2009 Posts: 293 Rep Power: 19	this is my email address: hamid.zoka@gmail.com regards

May 2, 2012, 05:15		#7
JohnnyB New Member Ion Join Date: May 2010 Posts: 16 Rep Power: 16	hello... watch this: http://www.youtube.com/watch?v=al6VvL6OLTM

August 2, 2013, 12:57		#8
Irondome New Member Chaithu Join Date: May 2013 Location: USA Posts: 16 Rep Power: 13	Hi friends.. I have a similar problem but, I have .geomTurbo files and have to convert it to igs to generate the blade ? I am new to catia and donno how to go about it. Can someone please help me. Thanks a lot