THE NUMBER OF NON-ZERO MASSES REQUIRED

Question:

ERROR : THE NUMBER OF NON-ZERO MASSES REQUIRED     =     5
        THE NUMBER OF EXISTING MASSES IN THE MODEL =     0
        JOB WILL BE TERMINATED.

Reason?

Answer:

Hello ,

The error comes up because you are trying to perform Eigenvalue Analysis without having defined masses in the model. Mass properties are a key parameter for dynamic analyses, so you need to define them.

You can convert the self-weight of the structure into mass by going to Structure >> Structure Type, and check on Convert Self-Weight into Masses:

You can also convert loads to masses from Load >> Loads to Masses:

And in the loads menu you  can also assign masses directly to nodes.

Kind regards,
Technical Support Team
MIDAS UK

Creation date: 10/27/2018 6:11 AM (MIDAS_UK_IM)      Updated: 10/27/2018 3:43 PM (MIDAS_UK_IM)
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