It is possible

To facilitate the processing of the obtained vibrograms, it is advisable to bring the foundation to resonance and receive a resonant curve. It is best to build a resonance curve that establishes the dependence between the number of revolutions and the energy expended. Approaching the schedule of the curve of energy costs in the idle of the machine, it is possible to immediately get a logarithmic dense of the attenuation with simple calculations with the help of simple calculations. In view of the lack of such a curve removed from the fluctuations of foundations, we will use the curve recorded in the test of the bridge.