Characteristics of Modified Spiral Thrust Bearing through Geometries and Dimension Modifications

This research focuses on the optimum design of fluid dynamic bearing (FDB) named modified spiral design. The objective is to improve the pressure and velocity distribution inside the FDB. In this paper, the current spiral design has 12 number of grooves while the modified spiral design has 24 number...

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Autores principales:	Mohd Danial Ibrahim, Norliza Marusman, Yuta Sunami, Siti Nur Azizah Amran, Saad Salahuddin Musa, Masayuki Ochiai, Su Shiung Lam
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2018
Materias:	fluid dynamic bearing modified spiral geometry pressure distribution air leakages Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/583a3a54f8724ee68f5500c46bcce69f
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id	oai:doaj.org-article:583a3a54f8724ee68f5500c46bcce69f
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spelling	oai:doaj.org-article:583a3a54f8724ee68f5500c46bcce69f2021-11-05T09:18:50ZCharacteristics of Modified Spiral Thrust Bearing through Geometries and Dimension Modifications1881-219810.2474/trol.13.334https://doaj.org/article/583a3a54f8724ee68f5500c46bcce69f2018-12-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/13/6/13_334/_pdf/-char/enhttps://doaj.org/toc/1881-2198This research focuses on the optimum design of fluid dynamic bearing (FDB) named modified spiral design. The objective is to improve the pressure and velocity distribution inside the FDB. In this paper, the current spiral design has 12 number of grooves while the modified spiral design has 24 number of grooves. Both design can be classified into two, bearing with seal and without seal. Air was chosen to replace the oil as the lubricant. Results show that the modified spiral bearing design has comparable characteristics compared to conventional spiral design in terms of pressure and velocity distribution. Modified spiral geometries also shows a tendency to replace the function of seals in FDB. This makes it possible to simplify bearing design without using any seal just by modifying its geometries based on novel modified spiral geometries. Experimental verifications also proved that the modified spiral bearing design has better air leakage control compared to the conventional ones. This phenomenon occurs in both design parameters, where when the designs are compared with respect to increase of rotational speed and air film thickness.Mohd Danial IbrahimNorliza MarusmanYuta SunamiSiti Nur Azizah AmranSaad Salahuddin MusaMasayuki OchiaiSu Shiung LamJapanese Society of Tribologistsarticlefluid dynamic bearingmodified spiral geometrypressure distributionair leakagesPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 13, Iss 6, Pp 334-339 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	fluid dynamic bearing modified spiral geometry pressure distribution air leakages Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	fluid dynamic bearing modified spiral geometry pressure distribution air leakages Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Mohd Danial Ibrahim Norliza Marusman Yuta Sunami Siti Nur Azizah Amran Saad Salahuddin Musa Masayuki Ochiai Su Shiung Lam Characteristics of Modified Spiral Thrust Bearing through Geometries and Dimension Modifications
description	This research focuses on the optimum design of fluid dynamic bearing (FDB) named modified spiral design. The objective is to improve the pressure and velocity distribution inside the FDB. In this paper, the current spiral design has 12 number of grooves while the modified spiral design has 24 number of grooves. Both design can be classified into two, bearing with seal and without seal. Air was chosen to replace the oil as the lubricant. Results show that the modified spiral bearing design has comparable characteristics compared to conventional spiral design in terms of pressure and velocity distribution. Modified spiral geometries also shows a tendency to replace the function of seals in FDB. This makes it possible to simplify bearing design without using any seal just by modifying its geometries based on novel modified spiral geometries. Experimental verifications also proved that the modified spiral bearing design has better air leakage control compared to the conventional ones. This phenomenon occurs in both design parameters, where when the designs are compared with respect to increase of rotational speed and air film thickness.
format	article
author	Mohd Danial Ibrahim Norliza Marusman Yuta Sunami Siti Nur Azizah Amran Saad Salahuddin Musa Masayuki Ochiai Su Shiung Lam
author_facet	Mohd Danial Ibrahim Norliza Marusman Yuta Sunami Siti Nur Azizah Amran Saad Salahuddin Musa Masayuki Ochiai Su Shiung Lam
author_sort	Mohd Danial Ibrahim
title	Characteristics of Modified Spiral Thrust Bearing through Geometries and Dimension Modifications
title_short	Characteristics of Modified Spiral Thrust Bearing through Geometries and Dimension Modifications
title_full	Characteristics of Modified Spiral Thrust Bearing through Geometries and Dimension Modifications
title_fullStr	Characteristics of Modified Spiral Thrust Bearing through Geometries and Dimension Modifications
title_full_unstemmed	Characteristics of Modified Spiral Thrust Bearing through Geometries and Dimension Modifications
title_sort	characteristics of modified spiral thrust bearing through geometries and dimension modifications
publisher	Japanese Society of Tribologists
publishDate	2018
url	https://doaj.org/article/583a3a54f8724ee68f5500c46bcce69f
work_keys_str_mv	AT mohddanialibrahim characteristicsofmodifiedspiralthrustbearingthroughgeometriesanddimensionmodifications AT norlizamarusman characteristicsofmodifiedspiralthrustbearingthroughgeometriesanddimensionmodifications AT yutasunami characteristicsofmodifiedspiralthrustbearingthroughgeometriesanddimensionmodifications AT sitinurazizahamran characteristicsofmodifiedspiralthrustbearingthroughgeometriesanddimensionmodifications AT saadsalahuddinmusa characteristicsofmodifiedspiralthrustbearingthroughgeometriesanddimensionmodifications AT masayukiochiai characteristicsofmodifiedspiralthrustbearingthroughgeometriesanddimensionmodifications AT sushiunglam characteristicsofmodifiedspiralthrustbearingthroughgeometriesanddimensionmodifications
_version_	1718444411324465152

Characteristics of Modified Spiral Thrust Bearing through Geometries and Dimension Modifications

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