Paper Title
A STATISTICAL STUDY OF VARIATION IN SIZE OF WEAR DEBRIS WITH AGEING OF OIL

Abstract
Abstract - Wear debris analysis and lubricant analysis are common techniques used for predicting machine health.Much work has been done to infer condition of the machine on the basis of morphological analysis of wear debris and degradation in the properties of lubricating oil. The wear condition at the interacting surfaces is affected by the quality of lubrication available there and hence on the physico-chemical property of the lubricant. The oil deteriorates with use.It is expected that the condition of the lube oil will affect the shape and size of the wear particles generated. This aspect needs to be investigated and present work attempts to study the effect of variation in size of wear debris with ageing of oil. The sample oil (differential assembly oil) were collected from a dumper used in a coal mine.wear particles were separated from the oil and the images of the particles were captured using Leica DMi8 microscope. The captured image further processed using MATLAB software to get particles size distribution. The size of the particles vary with oil age and shows an expected bath curve shape. To investigate the oil condition viscosity of oil is plotted with time and the trend shows the oil is gradually degrading with time. Keywords - Wear debris, Lubricating oil, Size distribution, Viscosity, Lubricating Oil Age