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No convergence of nonlinear problem! Very Simple model

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Message 1 of 12
Anonymous
1301 Views, 11 Replies

No convergence of nonlinear problem! Very Simple model

Hey

 

My first and very simple 2D Frame in ROBOT. 

 

I get the No convergence of nonlinear problem error when analysis. It is part of my 2. semester project. All is calculated by hand, and i am just trying to see if i can get the same, or just about, results in ROBOT.

 

The model is attached.

 

Regards

Sune

 

 

 

2D Error.JPG

11 REPLIES 11
Message 2 of 12
Artur.Kosakowski
in reply to: Anonymous

convergence1.PNG

 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.



Artur Kosakowski
Message 3 of 12
Rafacascudo
in reply to: Anonymous

Do you really need to use a cable element for the diagonals , or just a "tension only" bar?

Rafael Medeiros
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Did your question get successfully answered? Then click on the ACCEPT SOLUTION button.

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Message 4 of 12
Anonymous
in reply to: Artur.Kosakowski

Thanks. I never would have figured that out. Fast and sweet support 🙂

Message 5 of 12
Anonymous
in reply to: Rafacascudo

Rafacascudo i guess that would do just as well. Can you point me in the direction as to where i select "tension only" for my diagonal bar?
Message 6 of 12
Rafacascudo
in reply to: Anonymous

define as a standard bar element and ...

 

 

tension only bars.jpg

Rafael Medeiros
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Message 7 of 12
Anonymous
in reply to: Rafacascudo

Thx. Its a steep learning curve. Day 1 with robot 🙂 Your help is much appreciated!
Message 8 of 12
Rafacascudo
in reply to: Anonymous

Although ,after 15 years (v13.5) of practice and still learning, it´s Not so steep! Maybe the easiest one to learn and operate by far!!

 

Smiley Very Happy

Rafael Medeiros
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Message 9 of 12
Anonymous
in reply to: Rafacascudo

Then perhaps you can give me pointers as to how i make my results simple and slick. As for now, we need to compared out hand calculations / dimensioning with a ROBOT analysis.
i would like to get a detailed result for bar nr.4. I will post a result of my best shot so far
Message 10 of 12
Anonymous
in reply to: Anonymous

1.JPG

 

 

 

Or for a single bar this is what i can do

 

2.JPG

 

Message 11 of 12
Rafacascudo
in reply to: Anonymous

select the bar you want the results  ,then click on menu results/Detailed analysis...

 

or you can have it also through tables . Right click anywhere / tables.../Forces

 

and if you need more information in your tables , right click anywhere on table area and click on table columns

Rafael Medeiros
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Message 12 of 12
Anonymous
in reply to: Rafacascudo

I will give it a try after i get some sleep. Thanks Raf

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