Maximal eigenfrequencies plot

Maximal eigenfrequencies plot

During the automatic linearization run the computation of the eigenvalues is performed and listed at each dedicated time. At each linearization time the highest frequency and its corresponding damping are extracted from the eigenvalues list.

This highest frequency is then plotted against time (eigenfrequency max.) along with its damping ratio.

Figure 41: Automatic linearization plot

This plot can be cross used with the CPU time displayed in the Run statistics pane in order to check if a slowdown of the solver corresponds to an evolution of the maximum eigenfrequency.

Analyzing these frequencies and the corresponding damping values is a good way to detect bottlenecks during simulation and locate possible issues for the simulation of ongoing models.

Since the plot cursor is synchronized with the slider of the linearization time selection, using the plot cursor allows you to quickly jump to the critical points and get the list of the eigenvalues with their properties.

Figure 42: Plot cursor synchronization