A Study of Reliability Evaluation of Main Bearings for Multicylinder Diesel Engines

In recent years, although experiment technologies on real engines and simulation technologies has been improved rapidly, the tribology contributing factors have not been quantitatively well evaluated to reveal critical lubrication failure mechanisms. In this study the oil film thickness of the main bearings in multicylinder diesel engines was measured, and the data was analyzed using response surface methodology, which is a statistical analysis methods used to quantitatively derive the factors affecting oil film thickness and the extent of their contribution. The authors found that the factor with the strongest effect on minimum oil film thickness is oil pressure. Lastly, as a verification test, bearing wear on the main bearings was compared under various oil pressure conditions. Clear differences in bearing wear were identified.

Language

  • English

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Filing Info

  • Accession Number: 01771113
  • Record Type: Publication
  • Source Agency: SAE International
  • Report/Paper Numbers: 2016-01-0494
  • Files: TRIS, SAE
  • Created Date: Mar 1 2021 6:51PM