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RESEARCH PAPERS

Oil Film Thickness in Engine Connecting-Rod Bearing With Consideration of Thermal Effects: Comparison Between Theory and Experiment

[+] Author and Article Information
Myung-Rae Cho, Dong-Chul Han

Department of Mechanical Design & Production Engineering, Seoul National University, San 56-1 Shilim-dong, Kwanak-gu, Seoul, 151-742, Korea

Jae-Kwon Choi

Hyundai Motor Co. Research Institute, San1-1, Mabook-ri, Kusung-myun, Yong-in-shi, Kyonggi-do, 449-910, Korea; Department of Mechanical Design & Production Engineering, Seoul National University, San 56-1 Shilim-dong, Kwanak-gu, Seoul, 151-742, Korea

J. Tribol 121(4), 901-907 (Oct 01, 1999) (7 pages) doi:10.1115/1.2834153 History: Received April 16, 1998; Revised October 05, 1998; Online January 24, 2008

Abstract

The aim of this paper is to study the thermal ejfects on minimum oil film, thickness in a connecting-rod bearing. A comparison between the theoretical and experimental results of minimum oil film thickness in a connecting-rod bearing is presented. The transient energy equation is solved by adapting the adiahatic boundary condition for considering the thermal effects. The minimum oil film thicknesses are measured by the total capacitance method. The minimum oil film thickness over an engine cycle estimated with consideration of thermal effects is closer to that measures than that estimated by using the iso-viscous lubrication theory.

Copyright © 1999 by The American Society of Mechanical Engineers
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