Dynamic Analysis of Plain Bearings in a Positive-Displacement Rotary Compressor

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This paper discusses the dynamic performance of plain bearings in a positive displacement rotary compressor. It includes dynamic bearing loads produced by rotor unbalance and cyclical loads produced by gas compression forces acting on the rotor. With the aid of the short-bearing approximation, bearing center loci and oil film pressure distributions are determined. The optimum location of oil film feed groove for the bearings of such a compressor is discussed.

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