REVIEW OF CONTAMINATED LUBRICANTS IN BEARING AND DETERMINATION OF FLASH TEMPERATURE IN ANSYS
Author’s Name : N Ravikumar
Volume 04 Issue 03 Year 2017 ISSN No: 2349-3860 Page no: 4-5
Abstract:
The study of contaminated lubricants in bearings began almost 70 years ago. While a fairly large volume of literature has been devoted to the subject of Contamination, there seems to be very little information available that can be directly applied to the design of bearings For instance, design guides are available for assessing the allowable minimum Film thickness for a specified shaft diameter and operating speed as well as required Roughness. However there is no design recommendation for relating the level of filtration to the minimum Thickness. The appropriate level of filtration is a critical parameter in bearing design because – insufficient filtration may lead to the scuffing failure of the bearings – excessive filtration may lead to a significant rise in hydraulic resistance i.e pumping power consumption and/or the clogging and blocking of the filters which could interrupt supply flow rate It is impossible and indeed impractical to remove all particles[impurities] in the lubricant which Passes through a filter. If the abrasive particle size is larger than the minimum film thickness, then there is a very serious possibility of surface damage. It is this situation that this paper is concerned with
Keywords:
Lubricants, Formatting, Contaminated, Flash Temperatureg, Ansys
References:
- Effect of Abrasive in Lubricant – Journal of SAE – Mckee.S.A
- Principles and application of tribology – Moore D.F
- Effect of abrasive contaminates on scuffing – Chandrasekaran – Tribology International.
- Roach.A.E – Performance of oil-film bearings with abrasive containing lubricant – ASME
- Tian.X – Maximum and Average flash temperature in sliding contacts – Journal of tribology.