optistruct

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

 I m getting this  error while solving

 

*** ERROR #  24 ***
  Eigenvalue SUBCASES or acceleration loads exist,
  and the total mass of the model is zero or negative.
  Please check the material data, the mass defined on element/property.
 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hi Ramesh,

     

    check the material data, looks like you didn't provide any density for the material you are using. 

     

    Provide density data in material cards and run analysis.

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