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Erro nonlinear problem

17 REPLIES 17
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Message 1 of 18
athurD
618 Views, 17 Replies

Erro nonlinear problem

Hi.

When calculation i is problem.

Capture.PNG

17 REPLIES 17
Message 2 of 18
Rafal.Gaweda
in reply to: athurD

Try this : http://forums.autodesk.com/t5/Autodesk-Robot-Structural/Non-linear-Static-Analysis-Parameters/m-p/36...

if it does not help please send us model.



Rafal Gaweda
Message 3 of 18
athurD
in reply to: Rafal.Gaweda

Thank you.


File modol of me.

http://www.mediafire.com/?cv1hf8c1sjg5hck

pass PM (RG_Adsk)

Message 4 of 18
Rafal.Gaweda
in reply to: athurD

The model you send me is linear:

 

linmodel.jpg



Rafal Gaweda
Message 5 of 18
athurD
in reply to: Rafal.Gaweda

Sorry.

you please add the same picture.

Thanks.

2012-10-08_2256.png

Message 6 of 18
Rafal.Gaweda
in reply to: athurD

I do not see any problem with Newton Raphson algorithm.

 

calculation times:

all cases, Newton Raphson, Sparse Solver - 2227seconds

simple cases set as auxiliary, Newton Raphson, multithreaded solver - 1700seconds - such model here :

https://www.filemail.com/dl.aspx?id=JZOUWLOFNSEKABA

 

 



Rafal Gaweda
Message 7 of 18
athurD
in reply to: Rafal.Gaweda

thank you very much.
You let me ask one question.
By my modol, then I should choose it is U + or U-?????
To get the correct results.

Message 8 of 18
Rafal.Gaweda
in reply to: athurD

It depends on local Z of panel

in your case U+

 

Examples:

uplus.jpg



Rafal Gaweda
Message 9 of 18
athurD
in reply to: Rafal.Gaweda

Hi.

I is prolem again, when change foundation raft to foundation footing???????

File modol foundation Footing. Please help.

http://www.mediafire.com/?po19hlc631a41ni

2012-10-10_1201.png

2012-10-10_1219.png

2012-10-10_1240.png

Message 10 of 18
Rafal.Gaweda
in reply to: athurD

No support s in UX UY directions.

I suggest you to use Automatic solver - it will report instabilities in model.



Rafal Gaweda
Message 11 of 18
athurD
in reply to: Rafal.Gaweda

Thank you reply.

I selection Automatic solver. File modol run normal.

I show deformation combo1 normal, So why Combo2,3,4,5,6,7 deformation verry max????????/. Please see picture.

2012-10-10_1626.png

2012-10-10_1628.png

 

Message 12 of 18
Rafal.Gaweda
in reply to: Rafal.Gaweda


RG_Adsk wrote:

"No support s in UX UY directions."

 

It means ADD such supports.

 

Example below

 

uxuy.jpg

 

 

 

 



Rafal Gaweda
Message 13 of 18
athurD
in reply to: Rafal.Gaweda

Thank you verry much.

I do not know to add ux, Uy.

Add it using the tool???

 

Message 14 of 18
athurD
in reply to: athurD

Please guide me App support in UX UY directions same picture RG_Adsk  ???.
I desperately needed for my work.

Thanks.

Message 15 of 18
tony.ridley
in reply to: athurD

WHy are you modelling structures if you do not understand this?

Message 16 of 18
athurD
in reply to: tony.ridley

Sorry tony.

If you can tell me, I do not know what I asked.

 

Message 17 of 18
Rafal.Gaweda
in reply to: athurD

example : http://screencast.com/t/ReS4UpwDF



Rafal Gaweda
Message 18 of 18
athurD
in reply to: Rafal.Gaweda

thank you.

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