Elastohydrodynamic Lubrication of Squeeze Films : Part 1 Two Cylinders Lubricated with Grease

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概要

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• The elastohydrodynamic squeeze problem between two cylinders lubricated with grease is studied in the paper. In the analysis, grease is assumed to be a Bingham solid whose plastic viscosity and yield stress are dependent on the pressure, and the effect of surface velocities due to local deformation is considered. It is discussed by solving the time-dependent elastohydrodynamic equation for a Bingham solid with an iterative procedure how the core formation which is the inherent property of a Bingham flow affects the film pressure and the deformation of cylinder surfaces. Using an interferometric method of measuring the separation of a cylinder dropping onto the lubricated optical flat, the film profiles between them are photographed by a high speed cinecamera. The results are compared with the analytical ones.

• 一般社団法人日本機械学会の論文

著者

• Wada Sanae

  Professor School Of Science And Engineering Waseda University

• TSUKIJIHARA Masafumi

  Graduate Student, School of Science and Engineering, Waseda University

• Tsukijihara Masafumi

  Graduate Student School Of Science And Engineering Waseda University

関連論文

• Elastohydrodynamic Lubrication of Squeeze Films : Part 1 Two Cylinders Lubricated with Grease
• Elastohydrodynamic Lubrication between Two Rotating Cylinders with Non-Newtonian Fluids

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