Show simple item record

contributor authorRuey-Hor Yen
contributor authorChien-Yu Chen
date accessioned2017-05-09T00:47:15Z
date available2017-05-09T00:47:15Z
date copyrightJanuary, 2011
date issued2011
identifier issn0742-4787
identifier otherJOTRE9-28779#011704_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/147744
description abstractTo improve the performance of a reversible rotation herringbone journal bearing (Rev-HGJB), this study uses reversible elliptical grooves on a journal bearing (Rev-EGJB) and numerically analyzes its characteristics, utilizing the spectral element method. Load capacity, pressure distribution, power loss, and dimensionless radial stiffness of the Rev-EGJB are compared with those of the Rev-HGJB. This comparison shows that the introduced Rev-EGJB exhibits a higher load capacity and a lower power loss than the Rev-HGJB. The pressure region in the Rev-EGJB is higher than that in the Rev-HGJB, which is achieved not only in the pressure-generated region, but also in the pressure-restored region. The load distributions of the Rev-HGJB and Rev-EGJB are also compared in order to determine how the elliptical grooves enhance the load characteristics. The optimum groove parameters of the Rev-EGJB at an eccentricity of 0.1 are investigated by studying the groove parametric matrix, which is given by taking several values in the effective range of each groove parameter. Ultimately, the radial stiffness of the Rev-EGJB with grooved bearing was also shown to be greater compared with that of a Rev-HGJB with optimum geometry; thus, the Rev-EGJB is more stable than the Rev-HGJB when the bearing is grooved.
publisherThe American Society of Mechanical Engineers (ASME)
titleEnhancement of Reversible Rotation Journal Bearing Performance Using Elliptical Grooves
typeJournal Paper
journal volume133
journal issue1
journal titleJournal of Tribology
identifier doi10.1115/1.4003148
journal fristpage11704
identifier eissn1528-8897
keywordsPressure
keywordsRotation
keywordsStress
keywordsBearings
keywordsStiffness AND Journal bearings
treeJournal of Tribology:;2011:;volume( 133 ):;issue: 001
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record