Refrigerant foil bearing behavior-A Thermo-HydroDynamic study (Application to rigid bearings)

被引：18

作者：

Garcia, Mathieu ^{[1
]}

Bou-Said, Benyebka ^{[2
]}

Rocchi, Jerome ^{[1
]}

Grau, Gregory ^{[1
]}

机构：

[1] LTS, F-31016 Toulouse 2, France

[2] Univ Lyon, CNRS, INSA Lyon, LaMCoS UMR 5259, F-69621 Villeurbanne, France

来源：

TRIBOLOGY INTERNATIONAL | 2013年 / 65卷

关键词：

Gas bearings; Two-phase flow; Turbulence; THD; JOURNAL BEARINGS; PERFORMANCE; SPEED; PAD;

D O I：

10.1016/j.triboint.2012.12.006

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Internal experiments at Liebherr-Aerospace FRANCE (LTS) on new refrigerant-lubricated compressor designs have shown that under specific operating conditions, a mixture of vapor and liquid appears in the compressor, instead of a single-phase vapor flow. Therefore, refrigerant-lubricated foil bearings behavior is studied, including the likelihood of two-phase flow in the lubricant. In this paper, we focus on the lubricant behavior only, in the operating conditions of foil bearings. The coupling with structural behavior is a complex process and will be the topic of another paper. The Thermo-HydroDynamic approach describes lubricant characteristics such as pressure, density, viscosity, and temperature. It involves the use of a Generalized Reynolds Equation for turbulent flow, a nonlinear cubic Equation of State for two-phase flow and a 3D turbulent thin-film energy equation. Journal bearing global parameters are calculated for steady-state conditions. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：363 / 369

页数：7

共 33 条

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