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The preliminary research of the influence of grease microcontainers made on the surface of the slide association on the vibration signal recorded for this association

Boruta G., Napadłek W.

Journal of KONES

2018

Vol. 25, No. 2

59--67

There is shown the construction of an elaborated test stand for the test research of sliding friction associations. The following properties of tested friction associations are described: type (chemical composition) and hardening of applied materials, as well as the results of the analysis of topography of their collaborating surfaces (base material and then after creating grease microcontainers in it). The methodology and the range of performed researches are described. The researches were conducted using the accelerometer A0760GP and the industrial measurement device Emerson CSI 2130. On the basis of recorded vibration signals, their amplitude spectra were determined. These spectra were being compared and analysed in reference to the possibilities of application of measurements of vibration signals to indication of the process of association wear. It was found that the process of wear of the tested sliding association without lubrication from grease microcontainers is visible as the change of form of vibration signals recorded for this association as even over-a-dozen-fold changes in the value of amplitudes of some special harmonic components of those signals, especially high-frequency components within the analysed range of frequencies. It was also found that the application of the grease microcontainers on the surface on which rollers slide (not roll) allowed to acquire a significant reduction of the process of wear of the tested slide association, showed by the slower pace of growth of the value of all harmonic components, especially high-frequency components within the analysed range of frequencies. At the end there were provided directions of further researches.