topic Re: Erro nonlinear problem in Robot Structural Analysis Forum

Erro nonlinear problem

athurD — Mon, 08 Oct 2012 13:50:54 GMT

Hi.

When calculation i is problem.

Re: Erro nonlinear problem

Rafal.Gaweda — Mon, 08 Oct 2012 13:53:02 GMT

Try this : http://forums.autodesk.com/t5/Autodesk-Robot-Structural/Non-linear-Static-Analysis-Parameters/m-p/3608842/highlight/true#M7268

if it does not help please send us model.

Re: Erro nonlinear problem

athurD — Mon, 08 Oct 2012 14:13:49 GMT

Thank you.

File modol of me.

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

pass PM (RG_Adsk)

Re: Erro nonlinear problem

Rafal.Gaweda — Mon, 08 Oct 2012 15:41:37 GMT

The model you send me is linear:

Re: Erro nonlinear problem

athurD — Mon, 08 Oct 2012 16:04:22 GMT

Sorry.

you please add the same picture.

Thanks.

Re: Erro nonlinear problem

Rafal.Gaweda — Tue, 09 Oct 2012 09:45:45 GMT

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

Re: Erro nonlinear problem

athurD — Tue, 09 Oct 2012 11:27:24 GMT

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.

Re: Erro nonlinear problem

Rafal.Gaweda — Tue, 09 Oct 2012 11:44:46 GMT

It depends on local Z of panel

in your case U+

Examples:

Re: Erro nonlinear problem

athurD — Wed, 10 Oct 2012 05:42:12 GMT

Hi.

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

File modol foundation Footing. Please help.

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

Re: Erro nonlinear problem

Rafal.Gaweda — Wed, 10 Oct 2012 07:12:30 GMT

No support s in UX UY directions.

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

Re: Erro nonlinear problem

athurD — Wed, 10 Oct 2012 09:35:29 GMT

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.

Re: Erro nonlinear problem

Rafal.Gaweda — Wed, 10 Oct 2012 10:16:40 GMT

RG_Adsk wrote:

"No support s in UX UY directions."

It means ADD such supports.

Example below

Re: Erro nonlinear problem

athurD — Wed, 10 Oct 2012 10:36:24 GMT

Thank you verry much.

I do not know to add ux, Uy.

Add it using the tool???

Re: Erro nonlinear problem

athurD — Wed, 10 Oct 2012 13:28:58 GMT

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

Thanks.

Re: Erro nonlinear problem

Anonymous — Wed, 10 Oct 2012 13:32:37 GMT

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

Re: Erro nonlinear problem

athurD — Wed, 10 Oct 2012 14:01:20 GMT

Sorry tony.

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

Re: Erro nonlinear problem

Rafal.Gaweda — Wed, 10 Oct 2012 14:14:09 GMT

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

Re: Erro nonlinear problem

athurD — Wed, 10 Oct 2012 14:24:00 GMT

thank you.