Numerical calculation of pressure distribution in the bearing clearance of circular aerostatic thrust bearings with a single air supply hole

Shigeka Yoshimoto, Naoki Suganuma, Kazuyuki Yagi, Kazuyuki Toda, Makoto Yamamoto

Research output: Contribution to journalArticle

Abstract

This paper describes the pressure distribution in the bearing clearance of circular aerostatic thrust bearings with a single air supply hole. In case of high air supply pressure or large bearing clearance, it was reported that shock wave occurs and forms complex fluid structure in the bearing clearance. However, it is very difficult to obtain the information of flow structure in detail from flow visualization because of very narrow bearing clearance. Therefore, we calculated the flow field using computational fluid dynamics (CFD) instead of Reynolds equation and supersonic flow model. In addition, we measured pressure distributions in the bearing clearance. It was consequently found that shock wave does not occur near a feeding hole, and air flow changes from laminar to turbulent flow in some limited area in the radial direction where pressure recovery in relatively large.

Original languageEnglish
Pages (from-to)1766-1772
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume71
Issue number5
Publication statusPublished - May 2005
Externally publishedYes

Fingerprint

Bearings (structural)
Thrust bearings
Pressure distribution
Air
Shock waves
Reynolds equation
Supersonic flow
Flow structure
Flow visualization
Turbulent flow
Flow fields
Computational fluid dynamics
Recovery
Fluids

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

@article{90a4c0ba8c6f4209aabcf02c4958bddc,
title = "Numerical calculation of pressure distribution in the bearing clearance of circular aerostatic thrust bearings with a single air supply hole",
abstract = "This paper describes the pressure distribution in the bearing clearance of circular aerostatic thrust bearings with a single air supply hole. In case of high air supply pressure or large bearing clearance, it was reported that shock wave occurs and forms complex fluid structure in the bearing clearance. However, it is very difficult to obtain the information of flow structure in detail from flow visualization because of very narrow bearing clearance. Therefore, we calculated the flow field using computational fluid dynamics (CFD) instead of Reynolds equation and supersonic flow model. In addition, we measured pressure distributions in the bearing clearance. It was consequently found that shock wave does not occur near a feeding hole, and air flow changes from laminar to turbulent flow in some limited area in the radial direction where pressure recovery in relatively large.",
author = "Shigeka Yoshimoto and Naoki Suganuma and Kazuyuki Yagi and Kazuyuki Toda and Makoto Yamamoto",
year = "2005",
month = "5",
language = "English",
volume = "71",
pages = "1766--1772",
journal = "Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C",
issn = "0387-5024",
publisher = "The Japan Society of Mechanical Engineers",
number = "5",

}

TY - JOUR

T1 - Numerical calculation of pressure distribution in the bearing clearance of circular aerostatic thrust bearings with a single air supply hole

AU - Yoshimoto, Shigeka

AU - Suganuma, Naoki

AU - Yagi, Kazuyuki

AU - Toda, Kazuyuki

AU - Yamamoto, Makoto

PY - 2005/5

Y1 - 2005/5

N2 - This paper describes the pressure distribution in the bearing clearance of circular aerostatic thrust bearings with a single air supply hole. In case of high air supply pressure or large bearing clearance, it was reported that shock wave occurs and forms complex fluid structure in the bearing clearance. However, it is very difficult to obtain the information of flow structure in detail from flow visualization because of very narrow bearing clearance. Therefore, we calculated the flow field using computational fluid dynamics (CFD) instead of Reynolds equation and supersonic flow model. In addition, we measured pressure distributions in the bearing clearance. It was consequently found that shock wave does not occur near a feeding hole, and air flow changes from laminar to turbulent flow in some limited area in the radial direction where pressure recovery in relatively large.

AB - This paper describes the pressure distribution in the bearing clearance of circular aerostatic thrust bearings with a single air supply hole. In case of high air supply pressure or large bearing clearance, it was reported that shock wave occurs and forms complex fluid structure in the bearing clearance. However, it is very difficult to obtain the information of flow structure in detail from flow visualization because of very narrow bearing clearance. Therefore, we calculated the flow field using computational fluid dynamics (CFD) instead of Reynolds equation and supersonic flow model. In addition, we measured pressure distributions in the bearing clearance. It was consequently found that shock wave does not occur near a feeding hole, and air flow changes from laminar to turbulent flow in some limited area in the radial direction where pressure recovery in relatively large.

UR - http://www.scopus.com/inward/record.url?scp=23144463887&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=23144463887&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:23144463887

VL - 71

SP - 1766

EP - 1772

JO - Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

JF - Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

SN - 0387-5024

IS - 5

ER -