AN ANALYSIS OF PARTIAL ARC BEARINGS INCLUDING EFFECTS OF ELASTICITY AND VISCOSITY

Abstract

AbstractThe aim of this investigation is to analyze the performance of a sleeve bearing which is subjected to loads such as those imposed on the piston pin bearing of a two‐stroke cycle diesel engine. This bearing is the most highly loaded of all bearings in the engine, and its performance is critical to satisfactory operation of the engine. To date, there has been no theoretical work published which satisfactorily explains its operation and, as a result, the design of the bearing has been by cut and try methods.In this report, the operation of this type of bearing is examined, using the theories of elasto‐hydrodynamic lubrication. The resulting calculations of bearing performance show that loads far greater than those calculated by means of the hydrodynamic equations can be supported with equal oil film thickness. Further work is required to optimize the design of these bearings and to correlate the cut and try designs presently in use.To assist the reader in the understanding of the Nomenclature and Subscripts used by the author, they are defined in the APPENDIX following the REFERENCES.