General Mechanical

General Mechanical

Large deflections

    • Marie Palau
      Subscriber

      Hi all,

      I'm having some troubles when turning on the "large deflections" options. I'm trying to do a non linear simulation so I need to turn it on. I'm attaching the errors that my simulation has, also the structure looks weird while simulating and the simulation doesn't complete the progress until the end.

      Does anyone know which parameters could I modify in order to complete my simulation with the large deflection option on?

    • Erik Kostson
      Ansys Employee

       

       

       

      Hi

      This is a common question which is very model specific – there are many resources and tips on the internet if you search.

       

      For instance here is one that is helpful:

      https://www.ansystips.com/2018/06/non-linear-convergence.html

      and this for buckling (linear and nonlinear):

      https://simutechgroup.com/nonlinear-buckling-with-pre-buckled-shape-distortion/

       

       

      A tips is make sure the model solves first in a small deflection analysis or modal analysis. If it does not then it will not solve with large deflections on.

      All the best

       

      Erik

       

       

       

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