Recent Developments in Vibration Based Diagnostics of Gear and Bearings Used in Belt Conveyors

Abstract:

Local damage detection in bearings/gearboxes is one of the most intensively explored problems in condition monitoring literature. Also for mechanical systems used in mining industry this issue might be critical due to short time local overloading of surfaces in contact in gear-pair or bearings that often happens during operation. In general, the problem of local damage detection is well defined in literature, however, specific factors related to the mining industry, require adaptation of existing methods or even developing new approaches. In the paper, some of the most promising techniques with mining machinery context are briefly re-called. The key problems identified for mining machines are: operation under time-varying load/speed conditions, presence of time varying signal to noise ratio and non-Gaussian noise (impulses that appear incidentally, randomly, not with expected cycle or cyclically, however with different cycle related to another damage). All these situations motivated us to find novel solution. The paper might be considered as brief review of recent achievements in the field rather that comprehensive, holistic description of the problem.

• Periodical: Applied Mechanics and Materials (Volume 683)
• Pages: 171-176
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.683.171
• Online since: October 2014
• Authors: Jakub Obuchowski*, Agnieszka Wylomańska, Radosław Zimroz
• Keywords: Bearings Diagnostics, Belt Conveyor, Gearbox, Signal Processing

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