WARNING [4046]: FAILED TO ESTIMATE DOMINANT FLEXIBLE FREQUENCY IN LINEAR DIRECT TRANSIENT ANALYSIS ID=#. DEFAULT TIME STEP WILL BE USED

Cause

This warning is generated when the prediction of the lowest-order natural frequency, which is intended to be used to predict the automatic time in direct transient response analysis, has failed.  The default time step is used to continue the analysis.

Analysis Type

Transient response analysis (direct method)

Related Menu

[Not Applicable in FEA NX]

Analysis Case >> Subcase Control >> Dynamic >> Auto Time Step...

Remedy

The automatic time step function cannot be used in a model that includes rigid body modes.