Hydrodynamic Lubrication of Journal Bearings by Non-Newtonian Lubricants : Effects of Composite Flow Characteristics

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説明

It is found experimentally that the lubricating oils, with high molecular weight polymers, indicate the composite flow characteristics involving pseudo-plastic and dilatant behavior. Applying a polynomial expression for such non-Newtonian characteristics, a modified Reynolds equation is derived, to obtain the pressure distribution and the load capacity of journal bearings. Comparing with experiments, the physical meanings of the composite flow characteristics are made clear. The effects on the bearing performance are discussed, by introducing a "ratio of nonlinearity" and a "rate of nonlinear influence".

収録刊行物

  • Bulletin of JSME

    Bulletin of JSME 20 (140), 224-231, 1977

    一般社団法人 日本機械学会

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