1. Analysis of elastohydrodynamic lubrication of diesel engine main bearings in different power conditions.
- Author
-
CHEN Liang, XUE Dong-xin, SONG Xi-geng, and MING Zhang-jie
- Subjects
SIMULATION methods & models ,DIESEL motor bearings ,DIESEL motor lubrication ,ELASTICITY ,DEFORMATIONS (Mechanics) - Abstract
The lubrication conditions of the main bearings of a 16 cylinders V form diesel generator set in four operation conditions (2 000, 2 430, 2 650, 2 940 kW) were simulated. The crankshaft was assumed as an elastic body to consider the deformation influence on lubrication performance of main bearings. Greenwood-Tripp asperity contact model was used to calculate the contact force in the friction area. Simulation results were examined by AVL criterion. Generator set is in the best lubrication condition at 2 430 kW work state, and there exists semi-dry friction in other work states. Nos. 8, 7, 1 main bearings are the vulnerable ones among all main bearings. The calculation resUlts of the asperity contact place are identical with the real wearing location. The reasons of the asperity contact at Nos. 8, 7, 1 main bearings are discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2011