Hydrodynamic Lubrication of Journal Bearings by Non-Newtonian Lubricants : Effects of Composite Flow Characteristics
スポンサーリンク
概要
- 論文の詳細を見る
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".
- 一般社団法人日本機械学会の論文
著者
-
Wada Sanae
School Of Science And Engineering Waseda University
-
Hayashi Hirotsugu
School Of Science And Engineering Waseda University
-
NAKARAI Nobuaki
Komatsu Ltd.
関連論文
- Pressure Boundary Conditions of High-Speed Thrust Bearings
- Thermohydrodynamic Lubrication of Journal Bearings in Turbulent Flow
- Application of Finite-Element Method to Hydrodynamic Lubrication Problems : Part 2, Finite-Width Bearings
- Performance Characteristics of Elliptical Journal Bearings in Turbulent Flow Regime
- Hydrodynamic Lubrication of Journal Bearings by Pseudo-Plastic Lubricants : Part 1, Theoretical Studies
- Fluid Film Lubrication with Nonlinear Four-Element Viscoelastic Fluids : Finite-Width Journal Bearings and Parallel Circular Bearings in Normal Approach
- Fluid Film Lubrication with Nonlinear Four-Element Viscoelastic Fluids : Flow Characteristics, a Modified Reynolds Equation and its Application to Parallel Circular Squeeze Bearings : Vibration, Control Engineering, Engineering for Industry
- Hydrodynamic Lubrication of Journal Bearings by Pseudo-Plastic Lubricants : Part 2, Experimental Studies
- Elastohydrodynamic Lubrication of a Bingham Solid
- Application Bulletin of the JSME of Finite-Element Method to Hydrodynamic Lubrication Problems : Part 1, Infinite-Width Bearings
- Hydrodynamic Lubrication of Journal Bearings by Pseudo-Plastic Lubricants : Part 3,Theoretical Analysis Considering Effects of Correlation
- An Analysis of Dynamic Characteristics of Turbulent Journal Bearings Considering Inertia Forces
- An Influence of Inertia Forces on Stability of Turbulent Journal Bearings
- Behavior of a Bingham Solid in Hydrodynamic Lubrication : Part 3,Application to Journal Bearing
- Behavior of a Bingham Solid in Hydrodynamic Lubrication : Part 2,Application to Step Bearing
- Behavior of a Bingham Solid in Hydrodynamic Lubrication : Part 1,General Theory
- Performance Characteristics of Large Scale Tilting-pad Journal Bearings
- An Influence of Fluid Inertia Forces on the Dynarnic Characteristics of Tilting-pad Journal Bearings in Turbulent Flow
- Turbulent Lubrication Theory Using the Frictional Law : 2nd Report, Its Application to Journal Bearings
- Turbulent Lubrication Theory Using the Frictional Law : 3rd Report, Theoretical Analysis Considering the Lubricant, Inertia
- An Influence of Centrifugal Force on the Performances of Thermo-hydrodynamic Turbulent Thrust Bearings
- Turbulent Lubrication Theory Using the Frictional Law : 1st Report, Derivation of Turbulent Coefficients and Lubrication Equation
- The Effects of Fluid Inertia Forces in Squeeze Film Bearings Lubricated with Pseudo-plastic Fluids : 2nd Report, Annular Pavallel Plates Squeeze Film Bearings
- An Influence of Fluid Inertia Forces on the Pressure Distributions of Step Thrust Bearings : 1st Report, Theoretical Analysis with Negligibly Small Entrance Pressure Differences
- Modified Darcy's Law for Non-Newtonian Fluids
- Elastohydrodynamic Squeeze Problem of Two Rotating Cylinders : Part 1,Newtonian fluid
- Elastohydrodynamic Lubrication between Two Heavily Loaded Cylinders Lubricated by a Bingham Solid
- Hydrodynamic Lubrication of Porous Journal Bearings with a Grease
- Hydrodynamic Lubrication of Porous Step Thrust Bearings With a Bingham Solid
- Elastohydrodynamic Lubrication of Squeeze Films : Part 2, Two spherical bodies lubricated with grease
- Elastohydrodynamic Squeeze Problem of Two Rotating Cylinders : Part 2,Bingham Solid
- Elastohydrodynamic Luburication of Porous Squeeze Bearings with Non-newtonian Fluids
- Hydrodynamic Lubrication of Journal Bearings by Non-Newtonian Lubricants : Effects of Composite Flow Characteristics