Abstract
Analysis of the impact of oil viscosity on the vibroacoustic signal of a planetary gearbox operating at variable load
Highlights
The paper presents the analysis of the impact of oil viscosity on the vibroacoustic signal generated by a planetary gearbox
The analysis of amplitude values over the entire range of rotational speed changes caused by the load variation gives more information than the analysis of the order spectrum which contains averaged amplitude values in the analysed time window
Instead observing the average amplitude of characteristic order determined from the order spectrum for a given time window, the deviations from the standard relationship between the order amplitude and the load are observed
Summary
The paper presents the analysis of the impact of oil viscosity on the vibroacoustic signal generated by a planetary gearbox. The paper aims at the analysis of the impact of oil viscosity on the vibroacoustic signal generated by a planetary gearbox operating at variable load. Synchronous methods allow eliminating the impact of the changes of rotational speed by transition from the frequency domain to the order domain related to the machine shaft rotation. Such methods significantly facilitate the diagnostics, do not solve the problem of varying amplitude of the signal characteristic components caused by the load, shown in [18][19]. The paper presents the analysis of the impact of oil type on the characteristic orders of a planetary gearbox operating at variable load. The effectiveness of the method in detecting changes in the vibration acceleration signal caused by a change in oil viscosity has been demonstrated
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