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Robot Structural Analysis

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jhilme08
Posts: 2
Registered: ‎11-04-2012
Accepted Solution

instability (of type 1) at node RZ direction

876 Views, 2 Replies
11-04-2012 05:46 AM

Hi,

I've been playing arround with robot for a school project, trying to analyse a simplified structural model I've made of the Downland gridshell building located in Sussex.

 

I'm getting instabillity warnings, and useless results when I press calculate, and being a beginner I've struggled to figure out what the problem might be.

Changing the releases and supports, didn't do anything, so I'm running out of good ideas. I hope some of you guys may be able to help?

 

Kind regards, Jacob

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Rafal.Gaweda
Posts: 5,587
Registered: ‎04-26-2010

Re: instability (of type 1) at node RZ direction

11-05-2012 12:41 AM in reply to: jhilme08

Caused by releases.

You have applied releases to all bars making all of them truss bars so the whole model is unstable.

Correct or remove releases.



Rafal Gaweda
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New Member
jhilme08
Posts: 2
Registered: ‎11-04-2012

Re: instability (of type 1) at node RZ direction

11-05-2012 08:28 AM in reply to: Rafal.Gaweda

Thank you.

It solved the problem even though I thought I've allready tried it.

 

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