Effect of Applied Load and Entrainment Speed on Stress Distribution of Coated Film with Interlayer and Lubrication Characteristics under Elastohydrodynamic Lubrication Condition

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Other Title
  • 弾性流体潤滑下における中間層を有するコーティング膜の応力分布と潤滑特性に及ぼす負荷荷重と引き込み速度の影響
  • ダンセイ リュウタイ ジュンカツ カ ニ オケル チュウカンソウ オ ユウスル コーティングマク ノ オウリョク ブンプ ト ジュンカツ トクセイ ニ オヨボス フカ カジュウ ト ヒキコミ ソクド ノ エイキョウ

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Abstract

<p>  Machine components such as bearings, gears and so on are required to operate under severe tribological conditions such as elastohydrodynamic lubrication (EHL). There have been recent advances in techniques to improve sliding performance using coated films possessing superior tribological properties to reduce machine component failures. These techniques are often used under severe conditions such as elastohydrodynamic lubrication. In this paper, for coated film with interlayer and substrate used under various applied normal loads and entrainment speeds, distributions of oil film pressure, oil film thickness and stress distributions therein were numerically investigated in detail for a point contact under elastohydrodynamic lubrication condition. Also, the effects of applied normal loads and entrainment speeds on distributions of oil film pressure and oil film thickness and stress distributions were discussed. The typical results showed that oil film pressure p and maximum stress σmises-max of material including coated film and interlayer are larger, and that minimum oil film thickness hmin is smaller with increase of oil applied normal load. Maximum oil film pressure pmax, hmin and σmises-max are larger with increase of lubricant entrainment speed.</p>

Journal

  • Marine Engineering

    Marine Engineering 50 (5), 678-685, 2015

    The Japan Institute of Marine Engineering

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