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Advanced Elastohydrodynamic Analysis of Journal Bearings in IC Engines With a Multi-Body System Approach

[+] Author Affiliations
Ming-Tang Ma

AVL List Technical Center (Shanghai) Company Ltd., Shanghai, China

Bernhard Loibnegger, Paul Herster

AVL List GmbH, Graz, Austria

Paper No. ICES2006-1349, pp. 709-717; 9 pages
doi:10.1115/ICES2006-1349
From:
  • ASME 2006 Internal Combustion Engine Division Spring Technical Conference
  • ASME 2006 Internal Combustion Engine Division Spring Technical Conference (ICES2006)
  • Aachen, Germany, May 7–10, 2006
  • Conference Sponsors: Internal Combustion Engine Division
  • ISBN: 0-7918-4206-1 | eISBN: 0-7918-3775-0
  • Copyright © 2006 by ASME

abstract

This paper presents a rigorous analysis of the elastohydrodynamic (EHD) lubrication of journal bearings in internal combustion (IC) engines. The approach treats a set of radial slider (plain journal) bearings as a system or a subsystem. Thus, they can be simulated simultaneously, and hence the system effect is included. The analysis considers both the elasticity and dynamics of the connected parts such as the cylinder block (or main bearing walls), crankshaft and conrod. Both local vibration and global motion of these elastic parts are modelled by a multi-body system (MBS) approach. Hence, the EHD behaviour of engine bearings is simulated in a realistic manner.

Copyright © 2006 by ASME

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