A major portion of the frictional losses in internal combustion engines has been attributed to the piston-assembly. The current work examines the piston secondary motions and the relationships with which they interact with the lubricating oil film. This is done by developing a model that accounts for the rigid and flexible motions of the crank-slider mechanism of a single cylinder engine. The model considers the secondary motions of the piston and has a variable structure, which allows for the number of degrees of freedom of the system to vary depending on the nature of contact between the piston and the liner. The 3-D Reynolds’ equation is used to determine the instantaneous oil pressure, which is needed for the computation of the normal and the hydrodynamic friction forces exerted on the piston-assembly. The simulation results demonstrate the capability of the model in predicting the hydrodynamic friction force, the piston secondary motions, and the instantaneous oil film thickness.
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ASME 2008 Dynamic Systems and Control Conference
October 20–22, 2008
Ann Arbor, Michigan, USA
Conference Sponsors:
- Dynamic Systems and Control Division
ISBN:
978-0-7918-4335-2
PROCEEDINGS PAPER
Piston Secondary Motions and Hydrodynamic Lubrication Regime in a Single Cylinder Internal Combustion Engine
N. G. Chalhoub,
N. G. Chalhoub
Wayne State University, Detroit, MI
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W. Edelby
W. Edelby
Wayne State University, Detroit, MI
Search for other works by this author on:
N. G. Chalhoub
Wayne State University, Detroit, MI
W. Edelby
Wayne State University, Detroit, MI
Paper No:
DSCC2008-2171, pp. 489-496; 8 pages
Published Online:
June 29, 2009
Citation
Chalhoub, NG, & Edelby, W. "Piston Secondary Motions and Hydrodynamic Lubrication Regime in a Single Cylinder Internal Combustion Engine." Proceedings of the ASME 2008 Dynamic Systems and Control Conference. ASME 2008 Dynamic Systems and Control Conference, Parts A and B. Ann Arbor, Michigan, USA. October 20–22, 2008. pp. 489-496. ASME. https://doi.org/10.1115/DSCC2008-2171
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