Preliminary communication

https://doi.org/10.17559/TV-20151203140843

Analysis and prediction of vibrations of ball bearings contaminated by open pit coal mine debris particles

Žarko Mišković orcid.org/0000-0003-0513-6540 ; University of Belgrade, Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade 35, Serbia
Radivoje Mitrović orcid.org/0000-0003-0513-6540 ; University of Belgrade, Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade 35, Serbia
Vesna Maksimović ; University of Belgrade, Vinča Institute of Nuclear Sciences, PO Box 522, 11001 Belgrade, Serbia
Aleksandar Milivojević ; University of Belgrade, Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade 35, Serbia

Abstract

Analysis of the relevant literature has shown that only few researches are dealing with the bearings dynamic behaviour in real environmental conditions - where high concentration of solid contaminant particles is evident. There is still no established mathematical correlation between bearings vibration characteristics, working time and concentration level of contaminant particles in their grease. Solving this problem was the main goal of research described in this paper. First step was thorough analysis of the chemical composition and structure of contamination particles directly causing the sample bearings failure on open pit coal mines. After that, specific experimental methodology was developed and implemented. Finally, by processing of the experimental results, new mathematical correlation between listed bearings characteristics was determined.

Keywords

bearings; conveyor idlers; coal mines; contamination; particles; vibrations

Hrčak ID:

190194

URI

https://hrcak.srce.hr/190194

Publication date:

3.12.2017.

Article data in other languages: croatian

Visits: 3.105 *