Perform modal analysis in Altair SimSolid

Gouthami Polina_22137
Gouthami Polina_22137
Altair Employee
edited February 2022 in Altair HyperWorks

This video demonstrates how to perform modal analysis in Altair SimSolid. Watch this workflow to learn how to:

  • Setup modal analysis and review mode shapes
  • Review modal participation factors
  • Save modal displacements to a unv file

Comments

  • Girish Mudigonda_21018
    Girish Mudigonda_21018
    Altair Employee
    edited February 2022

    The output of UNV file allows to compare the modal solution from SimSolid with other traditional FE solvers or test data. HyperView has a nice tool to compare such data and report any inconsistencies.

    Pro tip: To get an exact match of eigenvectors between OptiStruct/Nastran and SimSolid, simply multiple the eigenvectors from OptiStruct/Nastran with sqrt(Emax), where Emax is the largest modulus of all the materials in the assembly.