In order to get the individual frequency components from many overlapping vibrations, a frequency analysis is performed. The frequency spectra of rotating machines are influenced by e.g. changes of rotational speed. Therefore, it is useful to be able to view several frequency analyses over time in connection to each other. With InnoAnalyzer 3D such time-frequency analyses can be performed. The spectra are displayed as a waterfall.
By means of the waterfall display of run-up and coast-down analysis the speed-dependent and -independent vibration components can easily be determined. Natural oscillations and resonance states are identified reliably.