Long running with instability nodes

Long running with instability nodes

Anonymous
Not applicable
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Message 1 of 9

Long running with instability nodes

Anonymous
Not applicable

Hi My model analysis has nearly been running for 24 hrs with almost 6000 instability nodes detected in RXYZ and UXYZ. Does anyone know why this is happening?

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Accepted solutions (1)
714 Views
8 Replies
Replies (8)
Message 2 of 9

Rafacascudo
Mentor
Mentor

It can have a lot of reasons. Too many releases , imprecise geometry, insufficient support etc

Impossible to know without the file. Zip it before attaching , if possible

Rafael Medeiros
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Message 3 of 9

Romanich
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Mentor

Hi @Anonymous ,

I would also recommend to check this webinar: Instability warnings during model analysis: causes and solutions 

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Roman Zhelezniak

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Message 4 of 9

Anonymous
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Hi @Rafacascudo zip file is attached now

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Message 5 of 9

Rafal.Gaweda
Autodesk Support
Autodesk Support

Hi @Anonymous 

 

1. Turn off kinematic links

2. Mesh model - see screen shot below.

3. Fix model geometry then.

 

mo.jpg

 

 



Rafal Gaweda
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Message 6 of 9

Anonymous
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Hi @Rafal.Gaweda for step 3 I am a bit confused about it. Are you able to give me more hints?

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Message 7 of 9

Rafal.Gaweda
Autodesk Support
Autodesk Support

Hi @Anonymous 

 

Besides geometry inaccuracies:

 

skinny.jpg



Rafal Gaweda
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Message 8 of 9

Rafal.Gaweda
Autodesk Support
Autodesk Support
Accepted solution

Hi @Anonymous 

 

Fixed model attached.



Rafal Gaweda
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Message 9 of 9

Anonymous
Not applicable

@Rafal.GawedaThank you so much!

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