Jump to content
gslee

What is the meaning of this data in output file for Nonlinear transient analysis?

Recommended Posts

Hi,

 

I want to know the meaning of the data in output file for nonlinear transient analysis.

image.png.a0a403a209e2d8f7eca03f94c36d7be3.png

 

What is the meaning of ' itstp', 'norm(da)', 'noram(u_ref)', 'err_da', 'adjustment'?

 

'err_da' is error for what?

 

'itstp' is iteration step? then what is the difference between 'itstp' and 'Iter' ?

 

'Cutback' means that iteration does not satisfy the convergence criteria?

 

So increment load is changed?

image.png.bb8dcf422e9c12c0bc49f95854b08b70.png

 

 

image.png.bcae90a79e0a7cfb032ca064177bee14.png

In this, what is the meaning of 'Reduce next'??

what should be reduced next?

 

 

image.png.a62b920075854525cd90be9826e3cef1.png

In this, what is the meaning of 'No change' ??

What should be not changed?

 

image.png.0220d854f610a9c11ba96ab09a138c0a.png

In this, what is the meaning of 'Enlarge next' ??

What should be enlarged?

 

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...