潤滑油の高圧物性（第7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 7)
  • ―Derivation of van der WAALS Type Line Density Equation and Estimation of High Pressure Density―
  • ―ファンデルワールス型線密度方程式の導出と高圧密度の推算―

抄録

<p>It can became possible to calculate the oil film thickness and the pressure distribution on the Hertzian contact surface of bearings,gears, traction drives, etc. by the EHL theory by Dowson et al.. For these calculations, it is important to determine the high pressure viscosity and high pressure density of lubricant. In a previous report, I constructed a theory of the relationship between viscosity, temperature and pressure. And the van der WAALS type viscosity equation was derived. Similarly, in this study, I constructed a theory of the relationship between density, temperature and pressure. As a result, it was found from the dimensional analysis that 1/3 power of density (line density) was negatively proportional to temperature. This linear equation was found to be a van der WAALS type line density equation which consists of three eigen constants: absolute zero line density ρt=01/3, line density constant 1/G and pressure constant H/G. Furthermore, the pressure constant H/G of the line density equation is equivalent to the PR of the liquid state equation and the pressure constant C/B of the van der WAALS type viscosity equation. And I report the results of estimating the high pressure density of various lubricants by the line density equation.</p>

収録刊行物

  • トライボロジスト

    トライボロジスト 67 (6), 424-432, 2022-06-15

    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
    1390292406081623680
  • DOI
    10.18914/tribologist.21-00023
  • 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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