2 Replies Latest reply on Oct 15, 2010 4:08 PM by Roland Schwarz

    Non-linear compression spring

    Toby Mullarkey

      Is there a way to simulate a non-linear spring?

       

      I know the nominal force vs deflection figures for the spring -  160N/15%, 300N/30%, 420N/45%, 520N/60%, 600N/75% and 680N/90%

       

      Because the force drops as the deflection increases, I run the risk of bottoming out the real spring when the FEA on a linear spring is ok.

       

      The spring used is a Belleville washer type but I'm modelling the FEA with a spring connection in place of the washer.

       

      Cheers