Modal Analysis Add-on

Technical Article on the Topic Structural Analysis Using Dlubal Software

  • Knowledge Base

Product Feature

Compared to the RF-/DYNAM Pro - Natural Vibrations add-on module (RFEM 5 / RSTAB 8), the following new features have been added to the Modal Analysis add-on for RFEM 6 / RSTAB 9:

  • Preset combination coefficients for various standards (EC 8, ASCE, etc.)
  • Optional neglect of masses (e.g. mass of foundations)
  • Methods for determining the number of mode shapes (user-defined, automatic - to reach effective modal mass factors, automatic - to reach the maximum natural frequency)
  • Output of modal masses, effective modal masses, modal mass factors, and participation factors
  • Tabular and graphical output of masses in mesh points
  • Various scaling options for mode shapes in the result navigator

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