Early recognition of damage in rotary machines, such as gearwheels, bearings and motors, by measuring significant acutely occurring changes in acoustic behavior of assembly or structure

摘要: Acoustic signals of rotating machine as well rotational speed reference component the are recorded. Rotational drive shaft is digitized and analyzed, using known order analysis to determine spectral components continuously occurring acoustic signals, suitable algorithms used provide true-to-expectation value estimate spectrum. Various status changes measured compared a threshold. Operating statuses be distinguished connected at fixed rotation ranges. Maximum range divided into intervals pertinent adaptation monitoring phases, with thresholds determined for every operating change measure.