Evaluation of tribological properties of bearing materials for marine diesel engines utilizing acoustic emission technique

Man Nagata, Masahito Fujita, Motohira Yamada, Tatsumi Kitahara

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

Acoustic Emission (AE) technique, which has detection capability for minute failures, has been tried to monitor the condition of a plain bearing under the laboratory conditions. In this paper, the bearing materials for marine diesel engines - tin alloy as known as "white metal", aluminum alloy of 40% tin mass and aluminum alloy 40% tin mass with resin overlay - were tested using a sleeve-to-plate tribotester. The frictional force and back temperature were measured as well as the AE signals. The possibility of AE technique to monitor the bearing condition was also assessed by evaluating tribological properties under different operating conditions such as start-stop simulating the crankshaft turning during engine assembly and seizure tests. These results indicate that AE is useful for monitoring the lubricated condition of the sliding surfaces and evaluating tribological properties of the bearing.

Original languageEnglish
Pages (from-to)183-189
Number of pages7
JournalTribology International
Volume46
Issue number1
DOIs
Publication statusPublished - Feb 2012

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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