An elastohydrodynamic (EHD) analysis is performed for two misaligned hybrid journal bearings working on the same shaft. To predict the correct system behavior we are forced to consider the interdependence between the two bearings and the shaft. The presented algorithm is based on finite element discretization. It allows accurate analysis of film breakdown and reforming, during the functioning of actual devices. Active (full film) and inactive (cavitated) film zones are determined for nonstationary running conditions. Using a convenient iterative solution procedure, the converged solutions for lubricant flow and elastic deformation fields are obtained. The analysis of thickness, pressure, power loss, and elastic deformation of both bearings and shaft surface allows the optimization of any parameter for the two hybrid bearings.
An EHD Model to Predict the Interdependent Behavior of Two Dynamically Loaded Hybrid Journal Bearings
Contributed by the Tribology Division for publication in the ASME JOURNAL OF TRIBOLOGY. Manuscript received by the Tribology Division February 10, 2004; revised manuscript received December 15, 2004. Review conducted by: R. W. Snidle.
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Fatu, A., Hajjam , M., and Bonneau , D. (April 7, 2005). "An EHD Model to Predict the Interdependent Behavior of Two Dynamically Loaded Hybrid Journal Bearings ." ASME. J. Tribol. April 2005; 127(2): 416–424. https://doi.org/10.1115/1.1866162
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