You mesh the part and run the nonlinear study.
- Mesh the model using the Standard mesh and the default meshing settings.
- Run the nonlinear study.
The solver maps internally the nodal and element connectivity information stored in the *.POE file to the new mesh created in Simulation.
You do not have to add fixtures to run the analysis. The nonlinear solver internally applies soft springs to stabilize the part and resolve stiffness singularities.