THD effects of static performance characteristics of infinitely wide turbulent journal bearings

Shiuh Hwa Shyu, Fuli Li, Yeau Ren Jeng, Wei Ren Lee, Sheng Jii Hsieh

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

Formulas for static parameters were found for infinitely wide turbulent full journal bearings that correlate either load capacity or friction coefficient for thermohydrodynamics (THD) effects in terms of a single THD parameter. The database was built by numerical simulation of turbulent liquid lubricant flows with various eccentricity ratios in a wide range of the Reynolds number for both isoviscous and THD cases. The least-squares method was applied to the groups of parameters yielding the formulas of load capacity, friction coefficient, and attitude angle. The isoviscous attitude angle was fitted as a function of the maximum-to-minimum film thickness ratio, and the variation of attitude angle due to THD is linearly dependent on the THD-to-isoviscous load capacity ratio. With the formulas provided in this study, designers can quickly determine static parameters of turbulent journal bearings without the burden of labor-intensive numerical computation of the governing differential equations.

原文English
頁(從 - 到)948-956
頁數9
期刊Tribology Transactions
53
發行號6
DOIs
出版狀態Published - 2010 一月 1

All Science Journal Classification (ASJC) codes

  • 材料力學
  • 機械工業
  • 表面和介面
  • 表面、塗料和薄膜

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