潤滑油の高圧物性（第10報）

DOI
  • 金子 正人
    出光興産(株) 潤滑油一部 潤滑油生産技術センター

書誌事項

タイトル別名
  • High Pressure Rheology of Lubricants (Part 10)
  • ―Estimation of van der WAALS Type Viscosity Equation’s Constants and High-Pressure Viscosity of Lubricants by Multiple Regression Analysis―
  • ―重回帰分析によるファンデルワールス型粘性方程式の固有定数および潤滑油の高圧粘度の推算―

抄録

<p>High-pressure viscosity of lubricant is important for elucidating the lubrication state of metalworking, bearing and gear in the elastohydrodynamic lubrication (EHL) region. The van der Waals type viscosity equation was derived in a previous report and it was applied to the estimation of high-pressure viscosity. Furthermore, I accumulated the data of various lubricants for three material-specific constants included in this equation, namely absolute zero viscosity µt=0 [mPa･s], viscosity coefficient S [GPa/K²], and pressure constant PV [GPa]. In this study, a multiple regression equation was derived by conducting the multiple regression analysis on the three material-specific constants as target variables, while the physical properties and the chemical structure of the lubricant were explanatory variables. As a result, it was revealed that the three material-specific constants (ηt=0 mr-eq, S mr-eq, PV mr-eq) in the van der Waals type viscosity equation and the high-pressure viscosity ηmr-eq [mPa･s] could be estimated from this multiple regression equation for unknown lubricants only by analyzing their physical properties and chemical structures, without experimentally measuring viscosity using high-pressure viscosity test apparatus.</p>

収録刊行物

  • トライボロジスト

    トライボロジスト 69 (1), 56-67, 2024-01-15

    一般社団法人 日本トライボロジー学会

キーワード

詳細情報 詳細情報について

  • CRID
    1390298820574503040
  • DOI
    10.18914/tribologist.23-00013
  • ISSN
    21899967
    09151168
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用不可

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