Post-processing documentation
Module AC.pp
Parameters
Restrictions

### Description

The link between the vibration level (which could be plotted using plot_Vr_fft) and the acoustic noise is the radiation factor. In order to estimate it, three acoustic-source model could be formulated: the spherical model, the cylindrical model and the plane-radiator model. According to Timar and Lai, if the machine’s length-to-diameter ratio is between 0.5 and 2, the spherical model is appropriate, whereas the spherical model is used only for machines having an aspect ratio approaching unity.