Instabilité se type 2

[kirilascar]

Bonsoir,

je modélise un bât R+3 de CBS vers Robot structural analysis RSA! après générer le model de calcul puis vérifier la structure nous avons 0 erreur et 0 avertissement !! Puis dans l' onglet analyse puis calcul, nous avons des instabilités de type 2 aux noeuds 1506 vers RY .

Comment on résolu cette  solution .

Ci- joint le fichier et la capture d' écran .

Cordialement .

[Rafacascudo]

Certainly too many releases

Watch webinar 16 about instabilities on Build your Robot Structural Analysis IQ - YouTube

[kirilascar]

Good evening

a big thank-you ! But this link I already in french! I put a lot of time on the linear releases I'm really blocked!

[Artur.Kosakowski]

Hi @kirilascar

Try to redefine the linear release for UZ like that

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.

[kirilascar]

Hello,Good evening Mr .

I redefined your screenshot as shown above! But a Type 2 instability type error message !   Always instability errors of type 2 !

THANK YOU FOR YOUR HELP !

[Artur.Kosakowski]

Hi @kirilascar

Indeed I overlooked the actual reason which was rightly suggested by @Rafacascudo. The only thing which I may use as the excuse is that I wasn't expected definition of the releases for cantilevers 

Please remove all linear releases from the panels below and keep the releases as originally defined.

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.

[kirilascar]

hi Mr Arthur ,

If I understand you it is necessary to go in the menu structure then additional characteristics then again releases linear and then uncheck all linear releases.

In CBS pro free XY we double click and we go in lineaire then we uncheck Ux Uy Uz and so from the same CBS pro free Z and CBS pro rel .

Here is the screenshot below: 

[kirilascar]

hi Good evening teacher ,

If that 's not what your procedure is in the form of screenshot.

Thank you Best regards

[Artur.Kosakowski]

Hi @kirilascar

You can remove linear releases from all edges of a panel in this way:

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.

[kirilascar]

Hi, Arthur

Thanks for the precise information! I saw the final result is very well done! But I did not quite understand what you can take an example that is to say the panel 324 to do it step by step with screenshot. I do not want this kind of problem again....

thank you !

[Artur.Kosakowski]

Hi @kirilascar

I'm not sure if  I understand what you asked for correctly as I posted the screen captures in my previous post. Just type panel number (e.g. 3245) in the edge selection field, select X delete label and press Apply.

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.

[kirilascar]

Good evening,

Mr. After doing all this, there are always errors of instabilities! What the problem is, and yet I have removed all possible releases.

Thank you for your efforts!

[Rafacascudo · Accepted solution]

Your model has no problems at all if all releases(bar and panels ) are removed.

to delete all releases with no doubts do this below

and click on aplly button

[kirilascar]

hi,

I won't ever be able to thank you enough for your support, which came via your messages.

Type 2 instability is solved now .

Thank you rafacascudo !

[kirilascar · Accepted solution]

hi ,

We can never thank you enough for your commitment. 

Type 2 instability is solved now .

Thank you Mr Arthur ! I can not thank you enough for making our house searching Process positively pleasurable !

I am a beginner on robot but how you knew to detect these panels.