Vibration and oil analysis for monitoring problems related to water contamination in rolling

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorGonçalves, Aparecido Carlos-
Autor(es): dc.creatorPadovese, Linilson Rodrigues-
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Descrição: dc.descriptionTrying to reduce particle contamination in lubrication systems, industries of the whole world spend millions of dollars each year on the improvement of filtration technology. In this context, by controlling fluid cleanliness, some companies are able to reduce failures rates up to 85 percent. However, in some industries and environments, water is a contaminant more frequently encountered than solid particles, and it is often seen as the primary cause of component failure. Only one percent of water in oil is enough to reduce life expectancy of a journal bearing by 80 percent. For rolling bearing elements, the situation is worse because water destroys the oil film and, under the extreme temperatures and pressures generated in the load zone of a rolling bearing element, free and emulsified water can result in instantaneous flash-vaporization giving origin to erosive wear. This work studies the effect of water as lubricant contaminant in ball bearings, which simulates a situation that could actually occur in real systems. In a designed bench test, three basic lubricants of different viscosities were contaminated with different contents of water. The results regarding oil and vibration analysis are presented for different bearing speeds.-
Formato: dc.format80-90-
Idioma: dc.languageen-
Relação: dc.relationProceedings - International Brazilian Conference on Tribology-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectLiquid contamination-
Palavras-chave: dc.subjectOil analysis-
Palavras-chave: dc.subjectRolling element bearing-
Palavras-chave: dc.subjectVibration analyis-
Palavras-chave: dc.subjectBearing speed-
Palavras-chave: dc.subjectBench tests-
Palavras-chave: dc.subjectComponent failures-
Palavras-chave: dc.subjectEffect of water-
Palavras-chave: dc.subjectErosive wear-
Palavras-chave: dc.subjectExtreme temperatures-
Palavras-chave: dc.subjectFiltration technologies-
Palavras-chave: dc.subjectLife expectancies-
Palavras-chave: dc.subjectLoad zones-
Palavras-chave: dc.subjectLubrication system-
Palavras-chave: dc.subjectOil films-
Palavras-chave: dc.subjectParticle contamination-
Palavras-chave: dc.subjectReal systems-
Palavras-chave: dc.subjectRolling bearing elements-
Palavras-chave: dc.subjectRolling Element Bearing-
Palavras-chave: dc.subjectSolid particles-
Palavras-chave: dc.subjectWater contamination-
Palavras-chave: dc.subjectWater-in-oil-
Palavras-chave: dc.subjectWork study-
Palavras-chave: dc.subjectBall bearings-
Palavras-chave: dc.subjectContamination-
Palavras-chave: dc.subjectEmulsification-
Palavras-chave: dc.subjectJournal bearings-
Palavras-chave: dc.subjectSolid lubricants-
Palavras-chave: dc.subjectTribology-
Palavras-chave: dc.subjectWater pollution-
Palavras-chave: dc.subjectVibration analysis-
Título: dc.titleVibration and oil analysis for monitoring problems related to water contamination in rolling-
Aparece nas coleções:Repositório Institucional - Unesp

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