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http://dx.doi.org/10.9725/kstle.2011.27.2.101

Frictional Loss Analysis of a Reciprocating Compressor with Thrust Ball Bearing  

Kim, Tae-Jong (School of Mechanical Engineering, Pusan National University)
Publication Information
Tribology and Lubricants / v.27, no.2, 2011 , pp. 101-108 More about this Journal
Abstract
In this paper, a study on the frictional losses and dynamic behaviors of a reciprocating compression mechanism used in small refrigeration compressor is performed. In the problem formulation of the compressor dynamics, the viscous frictional force between piston and cylinder wall is considered in order to determine the coupled dynamic behaviors of piston and crankshaft supported on a thrust ball bearing. The solutions of the equations of motion of the reciprocating mechanism along with the time dependent Reynolds equations for the lubricating film between piston and cylinder wall and lubricant films of the journal bearings are obtained simultaneously. The hydrodynamic forces of journal bearings are calculated using finite bearing model and G$\hat{u}$m-bel boundary condition. And, a Newton-Raphson procedure was employed in solving the nonlinear equations of piston and crankshaft with a thrust ball bearing. The results explored the effects of design parameters on the frictional losses and dynamic stability of the compression mechanism.
Keywords
reciprocating compressors; thrust ball bearing; crankshaft-journal bearing; piston secondary dynamics; dynamic behavior; frictional loss;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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