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Modal Analysis

The modal analysis is the basis for further dynamic analysis, such as for loading by a response spectrum or a time diagram. This is a completely linear method; the nonlinearities existing in the system are not taken into account.

Modal Analysis in RF-/DYNAM Pro

It is possible to perform the modal analysis in RFEM or RSTAB by using the RF‑/DYNAM Pro add-on module. In addition to the results of modal parameters in tables, the natural vibration modes are also available graphically for the evaluation.

Furthermore, the modal analysis represents a method for solving time history. In this case, the determined eigenvalues and mode shapes of the model are directly used.


Links
References
  1. Dlubal Software. (2020). Manual RF-DYNAM Pro. Tiefenbach: Dlubal Software.