Study on the bubbly lubrication of journal bearings at various shear rates and temperatures

Hua Rui Yang; Xiao Li Wang; Yu Yan Zhang; Jin Fang Du

doi:10.1016/j.triboint.2013.11.011

Study on the bubbly lubrication of journal bearings at various shear rates and temperatures

Hua Rui Yang, Xiao Li Wang^*, Yu Yan Zhang, Jin Fang Du

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The rheological properties of bubbly oil are measured under relatively low to high shear rates using a rheometer. A constitutive equation including shear rate and temperature is constructed and used to develop the bubbly lubrication model of journal bearings, in which cavitation algorithm is applied. The effects of air volume fraction and shear rate on bearing performance are analyzed. The results show that as volume fraction increases, maximum pressure, load capacity, friction force and leak flow increase slightly at lower shear rates, decline obviously at higher shear rates, but increase to a peak and then decrease at intermediate shear rates.

Original language	English
Pages (from-to)	132-139
Number of pages	8
Journal	Tribology International
Volume	71
DOIs	https://doi.org/10.1016/j.triboint.2013.11.011
Publication status	Published - Mar 2014

Keywords

Bubbly oil
Cavitation algorithm
Constitutive equation
Journal bearing

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10.1016/j.triboint.2013.11.011

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title = "Study on the bubbly lubrication of journal bearings at various shear rates and temperatures",

abstract = "The rheological properties of bubbly oil are measured under relatively low to high shear rates using a rheometer. A constitutive equation including shear rate and temperature is constructed and used to develop the bubbly lubrication model of journal bearings, in which cavitation algorithm is applied. The effects of air volume fraction and shear rate on bearing performance are analyzed. The results show that as volume fraction increases, maximum pressure, load capacity, friction force and leak flow increase slightly at lower shear rates, decline obviously at higher shear rates, but increase to a peak and then decrease at intermediate shear rates.",

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AU - Yang, Hua Rui

AU - Wang, Xiao Li

AU - Zhang, Yu Yan

AU - Du, Jin Fang

PY - 2014/3

Y1 - 2014/3

N2 - The rheological properties of bubbly oil are measured under relatively low to high shear rates using a rheometer. A constitutive equation including shear rate and temperature is constructed and used to develop the bubbly lubrication model of journal bearings, in which cavitation algorithm is applied. The effects of air volume fraction and shear rate on bearing performance are analyzed. The results show that as volume fraction increases, maximum pressure, load capacity, friction force and leak flow increase slightly at lower shear rates, decline obviously at higher shear rates, but increase to a peak and then decrease at intermediate shear rates.

AB - The rheological properties of bubbly oil are measured under relatively low to high shear rates using a rheometer. A constitutive equation including shear rate and temperature is constructed and used to develop the bubbly lubrication model of journal bearings, in which cavitation algorithm is applied. The effects of air volume fraction and shear rate on bearing performance are analyzed. The results show that as volume fraction increases, maximum pressure, load capacity, friction force and leak flow increase slightly at lower shear rates, decline obviously at higher shear rates, but increase to a peak and then decrease at intermediate shear rates.

KW - Bubbly oil

KW - Cavitation algorithm

KW - Constitutive equation

KW - Journal bearing

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VL - 71

SP - 132

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JO - Tribology International

JF - Tribology International

ER -

Study on the bubbly lubrication of journal bearings at various shear rates and temperatures

Abstract

Keywords

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