Analysis of Ultra-thin Gas Film Lubrication Based on the Linearized Boltzmann Equation : Influence of Accommodation Coefficient

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概要

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• A generalize Reynolds-type lubrication equation valid for both arbitrary Knudsen numbers, defined as the ratio of the molecular mean free path to the film thickness, and arbitrary accommodation coefficients at boundaries, is derived form a linearized Boltzmann equation. Numerical analyses of lubrication characteristics through the equation for high Knudsen numbers reveal that, if the accommodation coefficient is less than 1, that is, if not all the molecules reflect diffusely as is the case with real gases, load carrying capacities are smaller than those for diffuse reflection.

• 一般社団法人日本機械学会の論文

著者

• FUKUI Shigehisa

  NTT Electrical Communications Laboratories

• Fukui S

  Ntt Applied Electronics Lab. Tokyo Jpn

• KANEKO Reizo

  NTT Electrical Communications Laboratories

• Kaneko Reizo

  Ntt Electrical Communications Laboratories Nippon Telegraph And Telephone Corp.

関連論文

• Accurate Measurement of Gas Lubricated Slider Bearing Separation Using Visible Laser Interferometry : Series C : Vibration, Control Engineering, Engineering for Industry
• Analysis of Ultra-Thin Gas Film Lubrication based on Linearized Boltzmann Equation : 1st Report, Derivation of Generalized Lubrication Equation : Series C : Vibration, Control Engineering, Engineering for Industry
• Analysis of Ultra-thin Gas Film Lubrication Based on the Linearized Boltzmann Equation : Influence of Accommodation Coefficient

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