Improvement on load performance of externally pressurized gas journal bearings by opening pressure-equalizing grooves

Jianjun Du; Guoqing Zhang; Tun Liu; Suet To

doi:10.1016/j.triboint.2014.01.012

Improvement on load performance of externally pressurized gas journal bearings by opening pressure-equalizing grooves

Jianjun Du, Guoqing Zhang, Tun Liu, Suet To

Research output: Journal article publication › Journal article › Academic research › peer-review

81 Citations (Scopus)

Abstract

To improve the load performance of externally pressurized gas journal bearings (EPGJBs), the influences of structural parameters of pressure-equalizing grooves (PEGs) such as the length, depth, number and location on the load capacity and stiffness are studied systematically. It is found that the depths of the circumferential PEGs have great impacts on the load performance. Compared with opening the circumferential PEGs, opening the axial PEGs is more helpful to improve the load capacity, even opening only one or two axial PEGs. The layout of the axial PEGs has great influence on the load performance. A group of experiments were performed to verify the simulation results, it is found that the experimental results were in agreement with the simulation results.

Original language	English
Pages (from-to)	156-166
Number of pages	11
Journal	Tribology International
Volume	73
DOIs	https://doi.org/10.1016/j.triboint.2014.01.012
Publication status	Published - 1 May 2014

Keywords

Externally pressurized gas journal bearing
Load capacity
Pressurized-equalizing groove
Stiffness

ASJC Scopus subject areas

Mechanical Engineering
Mechanics of Materials
Surfaces, Coatings and Films
Surfaces and Interfaces

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10.1016/j.triboint.2014.01.012

Cite this

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title = "Improvement on load performance of externally pressurized gas journal bearings by opening pressure-equalizing grooves",

abstract = "To improve the load performance of externally pressurized gas journal bearings (EPGJBs), the influences of structural parameters of pressure-equalizing grooves (PEGs) such as the length, depth, number and location on the load capacity and stiffness are studied systematically. It is found that the depths of the circumferential PEGs have great impacts on the load performance. Compared with opening the circumferential PEGs, opening the axial PEGs is more helpful to improve the load capacity, even opening only one or two axial PEGs. The layout of the axial PEGs has great influence on the load performance. A group of experiments were performed to verify the simulation results, it is found that the experimental results were in agreement with the simulation results.",

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AU - Du, Jianjun

AU - Zhang, Guoqing

AU - Liu, Tun

AU - To, Suet

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Y1 - 2014/5/1

N2 - To improve the load performance of externally pressurized gas journal bearings (EPGJBs), the influences of structural parameters of pressure-equalizing grooves (PEGs) such as the length, depth, number and location on the load capacity and stiffness are studied systematically. It is found that the depths of the circumferential PEGs have great impacts on the load performance. Compared with opening the circumferential PEGs, opening the axial PEGs is more helpful to improve the load capacity, even opening only one or two axial PEGs. The layout of the axial PEGs has great influence on the load performance. A group of experiments were performed to verify the simulation results, it is found that the experimental results were in agreement with the simulation results.

AB - To improve the load performance of externally pressurized gas journal bearings (EPGJBs), the influences of structural parameters of pressure-equalizing grooves (PEGs) such as the length, depth, number and location on the load capacity and stiffness are studied systematically. It is found that the depths of the circumferential PEGs have great impacts on the load performance. Compared with opening the circumferential PEGs, opening the axial PEGs is more helpful to improve the load capacity, even opening only one or two axial PEGs. The layout of the axial PEGs has great influence on the load performance. A group of experiments were performed to verify the simulation results, it is found that the experimental results were in agreement with the simulation results.

KW - Externally pressurized gas journal bearing

KW - Load capacity

KW - Pressurized-equalizing groove

KW - Stiffness

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DO - 10.1016/j.triboint.2014.01.012

M3 - Journal article

SN - 0301-679X

VL - 73

SP - 156

EP - 166

JO - Tribology International

JF - Tribology International

ER -

Improvement on load performance of externally pressurized gas journal bearings by opening pressure-equalizing grooves

Abstract

Keywords

ASJC Scopus subject areas

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