Axial impulse performance of self-acting semi-spherical air bearings

Woo Chun Choi; Keun Hyung Park; Jung Hwan Choi; Kwonhee Kim; Byung Chun Koh

doi:10.1299/jsmec.44.25

Axial impulse performance of self-acting semi-spherical air bearings

Woo Chun Choi, Keun Hyung Park, Jung Hwan Choi, Kwonhee Kim, Byung Chun Koh

School of Mechanical Engineering

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

Abstract

In this study we investigate the impulse performance of self-acting semi-spherical air bearings. Parameters affecting the performance of the air bearing are the clearance between the rotor and stator and stator groove depth. Rotation speed is changed from 13 000 rpm to 23 000 rpm. Rotor impulse displacement, impulse stiffness and allowable impulse are selected as axial impulse performance factors. Experimental results show that rotor impulse displacement and impulse stiffness decrease when the speed as well as the groove depth increase and the clearance decreases. Allowable impulse does not change significantly with changes in the clearance, and has a maximum value at a certain groove depth.

Original language	English
Pages (from-to)	25-29
Number of pages	5
Journal	JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing
Volume	44
Issue number	1
DOIs	https://doi.org/10.1299/jsmec.44.25
Publication status	Published - 2001

Keywords

Air bearing
Allowance impulse
Clearance
Groove depth
Impulse stiffness
Rotor impulse displacement
Self-acting
Spiral groove

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1299/jsmec.44.25

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title = "Axial impulse performance of self-acting semi-spherical air bearings",

abstract = "In this study we investigate the impulse performance of self-acting semi-spherical air bearings. Parameters affecting the performance of the air bearing are the clearance between the rotor and stator and stator groove depth. Rotation speed is changed from 13 000 rpm to 23 000 rpm. Rotor impulse displacement, impulse stiffness and allowable impulse are selected as axial impulse performance factors. Experimental results show that rotor impulse displacement and impulse stiffness decrease when the speed as well as the groove depth increase and the clearance decreases. Allowable impulse does not change significantly with changes in the clearance, and has a maximum value at a certain groove depth.",

keywords = "Air bearing, Allowance impulse, Clearance, Groove depth, Impulse stiffness, Rotor impulse displacement, Self-acting, Spiral groove",

author = "Choi, {Woo Chun} and Park, {Keun Hyung} and Choi, {Jung Hwan} and Kwonhee Kim and Koh, {Byung Chun}",

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AU - Choi, Woo Chun

AU - Park, Keun Hyung

AU - Choi, Jung Hwan

AU - Kim, Kwonhee

AU - Koh, Byung Chun

PY - 2001

Y1 - 2001

N2 - In this study we investigate the impulse performance of self-acting semi-spherical air bearings. Parameters affecting the performance of the air bearing are the clearance between the rotor and stator and stator groove depth. Rotation speed is changed from 13 000 rpm to 23 000 rpm. Rotor impulse displacement, impulse stiffness and allowable impulse are selected as axial impulse performance factors. Experimental results show that rotor impulse displacement and impulse stiffness decrease when the speed as well as the groove depth increase and the clearance decreases. Allowable impulse does not change significantly with changes in the clearance, and has a maximum value at a certain groove depth.

AB - In this study we investigate the impulse performance of self-acting semi-spherical air bearings. Parameters affecting the performance of the air bearing are the clearance between the rotor and stator and stator groove depth. Rotation speed is changed from 13 000 rpm to 23 000 rpm. Rotor impulse displacement, impulse stiffness and allowable impulse are selected as axial impulse performance factors. Experimental results show that rotor impulse displacement and impulse stiffness decrease when the speed as well as the groove depth increase and the clearance decreases. Allowable impulse does not change significantly with changes in the clearance, and has a maximum value at a certain groove depth.

KW - Air bearing

KW - Allowance impulse

KW - Clearance

KW - Groove depth

KW - Impulse stiffness

KW - Rotor impulse displacement

KW - Self-acting

KW - Spiral groove

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JO - JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing

JF - JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing

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Axial impulse performance of self-acting semi-spherical air bearings

Abstract

Keywords

ASJC Scopus subject areas

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