FIELD: mechanical engineering.
SUBSTANCE: method includes finding resonance frequency area (fl;fu) during operation, when object is under exciting effect, parameter of object oscillations is measured and registered during operations as function of time x(t) under condition of position of frequency of exciting effect in resonance frequency area [fl;fu] and exciting effect possibly close to permanent level. On basis of registered values of parameter of oscillations of object x(t) as time function t, resonance frequency fp and quality Q are evaluated.
EFFECT: possible determining of resonance frequency and quality of object's oscillations during operation without effect on object operation mode for performing measurements, without stops and delays at resonance frequencies, to decrease possibility of breakdowns of object during operation, launch and stopping.
1 cl, 1 dwg
