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General Mechanical

General Mechanical

Topics related to Mechanical Enterprise, Motion, Additive Print and more.
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  3. Dynamics modeling

Dynamics modeling

    • March 15, 2020 at 7:57 am
      MJol
      Subscriber

       Hello,


      I would like to know how we can use accelerogram in dynamics.


      I have a file with time and acceleration, but I don't know which study to cchoose and how i can use the file in Ansys.


      If you can help it will be a pleasure for me.


      Best reagards

    • March 15, 2020 at 11:28 am
      peteroznewman
      Subscriber

      Hello MaximeJ,


      In Workbench, use a Transient Structural analysis. Have your file with time and acceleration open in Excel.


      Add an Acceleration Load to the model and there is a Tabular data window. Copy the data from the time and acceleration columns in Excel and paste into the Tabular data first cell.


       

    • March 15, 2020 at 12:36 pm
      MJol
      Subscriber

      Hello Peteroznewman,


      Thank you for the answer, it works.


      However, how do we put gravity? Ansys says that is impossible to put acceleration and gravity.


      Best regards


      Maxime

    • March 15, 2020 at 12:40 pm
      MJol
      Subscriber

      I have a problem, the boundaries condition I took (support) are not takinf account into the transient analysis...

    • March 15, 2020 at 12:55 pm
      MJol
      Subscriber

      No it's fine i correct it

    • March 15, 2020 at 1:07 pm
      peteroznewman
      Subscriber

      If your units are meters, and you want gravity to be in the -Y direction, then you add 9.8066 to the Y-component of acceleration in the applied acceleration load.

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