XANSYS Message: 4149 [Go back to message list]
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Subject: Re: Hard Point Creation Error
Author: Chris Mollo
Date: 1999-08-24 10:20:00

I'm not sure why you cannot create hardpoints... works
fine for me after doing a "Default" IGES import in
5.5.2 on a WinNT system.

I even tried to duplicate the error message you got
by placing the hardpoint off an area (at X=10) but directly
above it. ANSYS projected the hardpoint down onto
the area:

*** WARNING *** CP= 2.534 TIME= 08:55:50
Hard point 65 ( 10.5, 1, 0) is not on Area 2.
The process continues with the projected point ( 10, 1, 0)!

So, I don't think you are running into any sort of
"tolerance" issue.

Then I tried placing the hardpoint in the same plane
as the area, but off to the "side." Again, ANSYS was
able to project the hardpoint onto the area.

All I can suggest is (1) that you double-check the
values of 67 & -387.5 that you are using to make
sure they put the point _within_ the boundary of the
area (2) if you are working in batch mode, make sure
that area 103 is the one you think it is, and (3)
work with your ASD to resolve the problem.

Good luck with things.

Chris Mollo
Automated Analysis Corp.

-----Original Message-----

I should have been more clear in my e-mail. I can't use that command
because I don't need a planar cut. I have a complex area with 5 internal
loops and I want to overlap it with a circular area to create a circular
split. The command I need is : aovl,comlex_area,new_circular_area so that
I can create a circular region on the complex area on which I can apply
pressures. I have already gone thru the GUI to see all the Booleans I can
perform and none would work. What would be nice is to have the overlap
commands so that you create regions of complex shapes on which you can
apply loads and BC.

Any idea about why the hard points are not being created!

Thanks,
Chandresh

On Mon, 23 Aug 1999, Chris Mollo wrote:

> From: "Chris Mollo"

> Why can't you simply use the ASBW command (divides area(s)
> by the Working Plane)? This command is available after
> doing a "Default" IGES import. Furthermore, you do
> not have to first delete the associated volume.

> Chris Mollo
> Automated Analysis Corp.

> -----Original Message-----
> Date: Mon, 23 Aug 1999 20:24:20 +0000 (GMT)
> From: Chandresh Shah
> Subject: Hard Point Creation Error

> Hi folks!

> I have imported a Pro/E model into ANSYS 5.5.3 via the default IGES option
> and created a volume out of it. I need to control the tet mesh in order to
> put loads and boundary conditions at appropriate regions of the model.
> Unfortunately, I can't find any way to split an existing area on the solid
> model into 2 areas - Default IGES option limits your Booleans to the point
> of being utterly useless (if someone knows of a way, please let me know).

> So I thought I will be clever and create hard points (HPTCREATE command)
> at the boundary of the split that I need on the area. The mesh will then
> have to respect the hardpoints and I will get the region I need.
> Unfortunately, I get the following ERROR message when I try it:

> *** ERROR *** CP= 96.210 TIME= 15:07:36
> Hard point 456 ( 67, 0, -387.5) is outside of Area 103.

> *** ERROR *** CP= 99.510 TIME= 15:07:43
> Fail to create hard point 456. HPTC command is ignored.

> I know for a fact that the point ( 67, 0, -387.5) does lie on the area
> (The area is on y=0 plane; although a couple of the keypoints on this area
> are at ~1e-14). Has anybody used the HPTC command before? Any idea why I
> am getting this error message? Is it some kind of tolerance issue? Any
> help will be appreciated....

> I have tried the alternate IGES option - the model won't come thru cleanly
> and I don't want to spend a lot of time trying to figure out why. I have
> not tried the Connection product, because we don't have it.

> To ANSYS Developers: The current capabilities of the Default IGES option
> are very limiting. I want to make some modifications (usually to control
> the mesh or to split areas for putting loads and BC) on 90% of the models
> I analyze. While the default option works great, I can't really do much
> with the resulting volume I get....and the alternate option usually
> doesn't work with complex models. I will probably end up meshing in
> Patran.

> Chandresh Shah
> Principal Engineer - Analysis
> Department of Engine Design
> Engine & Vehicle Research Division
> Southwest Research Institute

> Phone : 210-522-2628
> Fax : 210-522-4673
> E-mail: cshah@s...

Posts possibly associated with message #4149AuthorDateScore
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4120Re: Hard Point Creation ErrorChris Kennedy1999/08/23 
4121Re: Hard Point Creation ErrorChris Mollo1999/08/23 
4123Re: Hard Point Creation ErrorChandresh Shah1999/08/23 
4129Re: Hard Point Creation ErrorStefano Lucarelli1999/08/24 
4130Re: Hard Point Creation ErrorStefano Lucarelli1999/08/24 
4149Re: Hard Point Creation ErrorChris Mollo1999/08/24 
4152Re: Hard Point Creation ErrorChandresh Shah1999/08/24-5
4203Re: Hard Point Creation ErrorKarol Galik1999/08/25