Structural Dynamics

Structural Dynamics

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  3. How can I change the normalization method of the vibration modes from modal analysis?

How can I change the normalization method of the vibration modes from modal analysis?

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    • June 6, 2022 at 9:58 am
      FAQFAQ
      Participant

      One can use command MODOPT. Below is from the Help documentation.
      Nrmkey: OFF : Normalize the mode shapes to the mass matrix (default).
      Nrmkey: ON: Normalize the mode shapes to unity.
      In WB, insert a command object under Modal. You may need to define other parameters of command MODOPT. Below is an example:
      MODOPT,lanb,6,,,, on

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