PMASS ID not referenced

Altair Forum User

Hi,

 

I am using point masses for an analysis and I get this error in the output file:
'WARNING: PMASS ID 1 is not referenced.'
Can I ignore this message, considering that it is only a warning? The analysis even attained completion. How do I reference it, by the way? I have already assigned the PMASS and 0D Rigids properties. Am I missing something?

 

Thanks,
Ginobili

Altair Forum User

Hi Ginobilli,

 

Looks like you have created a PMASS and haven't applied/attached to any valid component. Please check whether the PMASS is referenced in any component or not.

Rahul_P1

Ginobili,

 

Do you have a cmass1 or cmass3 element? Does it contain the property ID ? 

Altair Forum User

Hi Prakash and Rahul,

 

I created a component for the point mass, created a node at its COM, assigned RBE3 attribute between dependent and independent nodes. After this, 1D -> Masses -> gave a mass value at the node, assigned a property collector (0_D Rigids) and chose the element type as CONM2. Also, in the property given, I used the PMASS card.
 

 

Thanks!

Altair Forum User

Hello,

 

Is it OK to ignore Warnings in the output file? How about ignoring the warning for the 'PMASS is not referenced case'? Any help?

Altair Forum User

Hi,

 

I think you can ignore the warning message.

 

Here is a plate model results with and without PMASS and the results for both are different.

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

Thanks for your time, Prakash!