Methodology development for numerical evaluation of wear in tribological contacts

Bergmann, Philipp and Grün, Florian and Gódor, István and Herbst, Klaus (2016) Methodology development for numerical evaluation of wear in tribological contacts. DESIGN OF MACHINES AND STRUCTURES, 6 (1). pp. 5-14. ISSN 1785-6892

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Abstract

Hydrodynamic journal bearings in internal combustion engines suffer progressively from hindered operation conditions. Consequently the chance of wear and failure increases making wear prediction and simulation inevitable. For the purpose of numerical wear evaluation we implemented a modified Archard’s wear law in COMSOL Multiphysics® and applied it on a test rig. Necessary wear coefficients were determined based on close-to-component tribological wear tests. By comparing numerical and achieved test results the usability of the developed methodology was evaluated. Results reveal the suitability to assess wear locally and chronologically resolved.

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