Jump to content

Topology Optimization: Error # 312

Recommended Posts

Hello, I have been trying to make an optimization of a hardpoint. I want to optimize the weight under load applied in grey zone

. image.png.0a4d60921515e227f658436b91a9677e.png


I have introduced all the parameters of the optimization (Response, Constraint, Objective and design variable). But the following error appears when I run the simulation:


*** ERROR # 312 ***
 In static load case 1 
 the compliance is negative or large -1.96593e+012.
 Optimization/buckling analysis cannot be performed.
 due to possible rigid body mode.


 Could you help me with this error please, and also could you verify if the 3d model is correct, or I have to make only one volume?


I attach the hm file as well


Than you in advance






Share this post

Link to post
Share on other sites

This error occurs when a model is under constrained or incorrect material property definition or contact definitions are incorrect or missing.I see there is no connectivity between nondesign and hardpoint component.Equivalencing nodes should help to run the optimization.

error 312.JPG

Share this post

Link to post
Share on other sites

I have made a equivalence and the simulation runs correctly. Thank you


It is mandatory to separate in two design spaces? Or it is possible to perform only with one volume?


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.

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...