Jump to content
mdrehmer

Topography optimization of frequency using stacked plies

Recommended Posts

Hello,

 

I'm having troubles setting up a topography optimization using plies. The model is a heatshield with 3 different layers(thickness) and Im using PCOMPP card as property to them. 

I believe that the optimization settings are correct, because I had already used the same settings in a previous single layer model and it went ok. 

But when I try using stacked layers something goes wrong. Im getting the following error:

 

*** ERROR #  79 ***
 DTPG data does not create any DVGRID data.
 There are no free referenced GRIDs.
 There may be no elements associated with the PSHELL data.
 LOAD or BOTH may be specified and all grids may be loaded.
 BC, SPC, or BOTH may be specified and all grids may be SPCed.

 

Any thoughts??

If there is some paper relating modal+plies+optimization that can be provided I'll appreciate.

Thanks in advance.

Share this post


Link to post
Share on other sites
Guest

Hi @mdrehmer

 

Is it possible to share the model file with us?

Please use the file transfer link in my signature to share the model file

 

 

Share this post


Link to post
Share on other sites

It worked! I saw that the problem was in the 'entity type' of Topography design variable right? As soon as it was changed to STACK the optimization runs properly.

Thanks Prakash, problem solved.

Share this post


Link to post
Share on other sites
Guest

@mdrehmer

 

1 minute ago, mdrehmer said:

It worked! I saw that the problem was in the 'entity type' of Topography design variable right? As soon as it was changed to STACK the optimization runs properly.

Thanks Prakash, problem solved.

Correct :) 

Share this post


Link to post
Share on other sites

Prakash,

 

One last question: How can I split the model in 'design areas' and 'non-design areas' using plies? Is it the same way when there's only one single layer?

Thanks!

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
You are posting as a guest. If you have an account, please sign in.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...