Damage Equivalent Test Methodologies as Design Elements for Journal Bearing Systems

Florian Summer, Philipp Bergmann, Florian Grun

Research output: Contribution to journalArticleResearchpeer-review

9 Citations (Scopus)

Abstract

The current paper addresses the field of experimental research of journal bearing systems.
In this regard, the challenges are dealt with concerning simultaneous testing with a close correlation to the industrial application and with a high resolution of tribological processes. Concerning this aspect, two damage equivalent laboratory test methodologies for journal slide bearing systems are
presented, and their ability to visualize certain performance parameters of bearing systems are emphasized (for instance friction performance, (start stop) wear processes, and seizure events). The results clearly emphasize that the applied methodologies provide accurate findings regarding specific effects of selective parameters/changes on the performance of bearing systems, such as polymer overlays may result in improved mixed friction sliding conditions if designed properly, and they provide superior start stop wear resistance; the use of specific corrosion inhibitors can successfully prevent tribo-corrosion on bronze bearings; a decrease of oil viscosity increases solid friction share
but decreases fluid friction; lubricant anti-wear additives are able to improve seizure resistance and sliding properties of bearing systems depending on formulation harmonization; and novel bearing material coatings, e.g., sputtered SnCu, can significantly improve emergency running capabilities.
Original languageEnglish
Number of pages16
JournalLubricants
Volume47
Issue number5
DOIs
Publication statusPublished - 2017

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