New solver settings in v. 16.0

 

16.0

SCIA Engineer 16.0 contains also small improvements related to the calculation core - the solver for the finite element analysis. First extension improves the stability of a non-linear calculation. The user can set a robustness parameter. This parameter influences the convergence in the non-linear analysis. A high value of that parameter ensures a more stable but slower convergence of the calculation. It can help with non-linear analysis with a problematic convergence.

The second small improvement is related to dynamic calculations. In some cases, the user wants to neglect the mass acting in a specific direction. In the solver setup, the user can:

  • enable/disable global directional mass components X,Y,Z,
  • enable/disable torsional mass component on 1D members.

The last improvement related to the calculation core is the possibility to choose between two methods for time history analysis:

  • direct time integration (standard Newmark algorithm),
  • modal superposition.

The modal superposition method is necessary in some cases to filter out local, high frequency modes and to avoid irrelevant behaviour, especially for fast train dynamic analysis.