[Workbench] Problem to select facing when updating geometry

vbernard · October 16, 2013, 10:45

Hello,

I'm using ANSYS Workbench 14.0 in structural analysis and here is my problem:

When I update the geometry from my CAD file (Solidworks assembly with 5 parts) all my contacts and loads have to be reassigned.
The problem is that for some faces I can't select them.
More exactly I can select them but when I click on "apply" in "geometry selection" field the faces are not assigned with the contact/load. Even if I build a new contact or a new load I can't use the faces that were used before updating geometry!
So every time that I change something in my assembly I have to rebuild the entire model!
Maybe there is an option to "repair" geometry or a trick to avoid this.

Has anyone faced this problem once? What do you recommend to do?

Many thanks

vbernard · October 28, 2013, 09:18

Can anyone help me?

harrynewbie · May 11, 2025, 13:28

Well 12 years later, no response, and I am having the same exact issue in ANSYS meshing for Fluent

evcelica · May 14, 2025, 12:49

Modify the geometry in ANSYS instead of Solidworks.
Then ANSYS keeps track of the geometry changes and named selections and what has not changed. If you bring in an entirely new solidworks geometry, of course you will have to redo everything as it is a completely new model.
ANSYS probably has "CAD geometry interfaces" so you could make changes in the original CAD program, but I've never used them if they exist.

October 16, 2013, 10:45	Problem to select facing when updating geometry	#1
vbernard New Member Join Date: Oct 2013 Posts: 2 Rep Power: 0	Hello, I'm using ANSYS Workbench 14.0 in structural analysis and here is my problem: When I update the geometry from my CAD file (Solidworks assembly with 5 parts) all my contacts and loads have to be reassigned. The problem is that for some faces I can't select them. More exactly I can select them but when I click on "apply" in "geometry selection" field the faces are not assigned with the contact/load. Even if I build a new contact or a new load I can't use the faces that were used before updating geometry! So every time that I change something in my assembly I have to rebuild the entire model! Maybe there is an option to "repair" geometry or a trick to avoid this. Has anyone faced this problem once? What do you recommend to do? Many thanks

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October 28, 2013, 09:18		#2
vbernard New Member Join Date: Oct 2013 Posts: 2 Rep Power: 0	Can anyone help me?

May 11, 2025, 13:28		#3
harrynewbie New Member Join Date: Mar 2025 Posts: 1 Rep Power: 0	Well 12 years later, no response, and I am having the same exact issue in ANSYS meshing for Fluent

May 14, 2025, 12:49		#4
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,194 Rep Power: 24	Modify the geometry in ANSYS instead of Solidworks. Then ANSYS keeps track of the geometry changes and named selections and what has not changed. If you bring in an entirely new solidworks geometry, of course you will have to redo everything as it is a completely new model. ANSYS probably has "CAD geometry interfaces" so you could make changes in the original CAD program, but I've never used them if they exist.