Stability evaluation of three-layered journal bearing with slip/partial slip

Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a th...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	TVVLN Rao [verfasserIn] AMA Rani M Awang FM Hashim

Format:	Artikel
Sprache:	Englisch

Erschienen:	2017

Rechteinformationen:	Nutzungsrecht: © Emerald Publishing Limited

Schlagwörter:	Dimensional analysis Numerical analysis Stability analysis Tribology Slip Velocity Mechanical engineering Studies Pressure distribution Rotation Journal bearings Thresholds

Übergeordnetes Werk:	Enthalten in: Industrial lubrication and tribology - Droitwich, Worcs. : Peterson, 1967, 69(2017), 3, Seite 334-341
Übergeordnetes Werk:	volume:69 ; year:2017 ; number:3 ; pages:334-341

Links:	Volltext Link aufrufen

DOI / URN:	10.1108/ILT-08-2016-0184

Katalog-ID:	OLC199442625X

Internformat


LEADER	01000caa a2200265 4500
001	OLC199442625X
003	DE-627
005	20230715053609.0
007	tu
008	170721s2017 xx \|\|\|\|\| 00\| \|\|eng c
024	7		\|a 10.1108/ILT-08-2016-0184 \|2 doi
028	5	2	\|a PQ20170901
035			\|a (DE-627)OLC199442625X
035			\|a (DE-599)GBVOLC199442625X
035			\|a (PRQ)e1332-57cf86dd53f9b58cf6156f9a38b4fd096c30bcffabac93c4f91e20080d3429a00
035			\|a (KEY)0049583220170000069000300334stabilityevaluationofthreelayeredjournalbearingwit
040			\|a DE-627 \|b ger \|c DE-627 \|e rakwb
041			\|a eng
082	0	4	\|a 660 \|q DNB
100	0		\|a TVVLN Rao \|e verfasserin \|4 aut
245	1	0	\|a Stability evaluation of three-layered journal bearing with slip/partial slip
264		1	\|c 2017
336			\|a Text \|b txt \|2 rdacontent
337			\|a ohne Hilfsmittel zu benutzen \|b n \|2 rdamedia
338			\|a Band \|b nc \|2 rdacarrier
520			\|a Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip.
540			\|a Nutzungsrecht: © Emerald Publishing Limited
650		4	\|a Dimensional analysis
650		4	\|a Numerical analysis
650		4	\|a Stability analysis
650		4	\|a Tribology
650		4	\|a Slip
650		4	\|a Velocity
650		4	\|a Mechanical engineering
650		4	\|a Studies
650		4	\|a Pressure distribution
650		4	\|a Rotation
650		4	\|a Journal bearings
650		4	\|a Thresholds
700	0		\|a AMA Rani \|4 oth
700	0		\|a M Awang \|4 oth
700	0		\|a FM Hashim \|4 oth
773	0	8	\|i Enthalten in \|t Industrial lubrication and tribology \|d Droitwich, Worcs. : Peterson, 1967 \|g 69(2017), 3, Seite 334-341 \|w (DE-627)129603643 \|w (DE-600)241754-6 \|w (DE-576)015097536 \|x 0036-8792 \|7 nnns
773	1	8	\|g volume:69 \|g year:2017 \|g number:3 \|g pages:334-341
856	4	1	\|u http://dx.doi.org/10.1108/ILT-08-2016-0184 \|3 Volltext
856	4	2	\|u https://search.proquest.com/docview/1902388840
912			\|a GBV_USEFLAG_A
912			\|a SYSFLAG_A
912			\|a GBV_OLC
912			\|a SSG-OLC-TEC
912			\|a SSG-OLC-CHE
912			\|a SSG-OLC-PHA
912			\|a SSG-OLC-DE-84
912			\|a GBV_ILN_30
912			\|a GBV_ILN_70
951			\|a AR
952			\|d 69 \|j 2017 \|e 3 \|h 334-341

Indexfelder

author_variant	t r tr
matchkey_str	article:00368792:2017----::tblteautootreaeejunlernw
hierarchy_sort_str	2017
publishDate	2017
allfields	10.1108/ILT-08-2016-0184 doi PQ20170901 (DE-627)OLC199442625X (DE-599)GBVOLC199442625X (PRQ)e1332-57cf86dd53f9b58cf6156f9a38b4fd096c30bcffabac93c4f91e20080d3429a00 (KEY)0049583220170000069000300334stabilityevaluationofthreelayeredjournalbearingwit DE-627 ger DE-627 rakwb eng 660 DNB TVVLN Rao verfasserin aut Stability evaluation of three-layered journal bearing with slip/partial slip 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip. Nutzungsrecht: © Emerald Publishing Limited Dimensional analysis Numerical analysis Stability analysis Tribology Slip Velocity Mechanical engineering Studies Pressure distribution Rotation Journal bearings Thresholds AMA Rani oth M Awang oth FM Hashim oth Enthalten in Industrial lubrication and tribology Droitwich, Worcs. : Peterson, 1967 69(2017), 3, Seite 334-341 (DE-627)129603643 (DE-600)241754-6 (DE-576)015097536 0036-8792 nnns volume:69 year:2017 number:3 pages:334-341 http://dx.doi.org/10.1108/ILT-08-2016-0184 Volltext https://search.proquest.com/docview/1902388840 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_30 GBV_ILN_70 AR 69 2017 3 334-341
spelling	10.1108/ILT-08-2016-0184 doi PQ20170901 (DE-627)OLC199442625X (DE-599)GBVOLC199442625X (PRQ)e1332-57cf86dd53f9b58cf6156f9a38b4fd096c30bcffabac93c4f91e20080d3429a00 (KEY)0049583220170000069000300334stabilityevaluationofthreelayeredjournalbearingwit DE-627 ger DE-627 rakwb eng 660 DNB TVVLN Rao verfasserin aut Stability evaluation of three-layered journal bearing with slip/partial slip 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip. Nutzungsrecht: © Emerald Publishing Limited Dimensional analysis Numerical analysis Stability analysis Tribology Slip Velocity Mechanical engineering Studies Pressure distribution Rotation Journal bearings Thresholds AMA Rani oth M Awang oth FM Hashim oth Enthalten in Industrial lubrication and tribology Droitwich, Worcs. : Peterson, 1967 69(2017), 3, Seite 334-341 (DE-627)129603643 (DE-600)241754-6 (DE-576)015097536 0036-8792 nnns volume:69 year:2017 number:3 pages:334-341 http://dx.doi.org/10.1108/ILT-08-2016-0184 Volltext https://search.proquest.com/docview/1902388840 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_30 GBV_ILN_70 AR 69 2017 3 334-341
allfields_unstemmed	10.1108/ILT-08-2016-0184 doi PQ20170901 (DE-627)OLC199442625X (DE-599)GBVOLC199442625X (PRQ)e1332-57cf86dd53f9b58cf6156f9a38b4fd096c30bcffabac93c4f91e20080d3429a00 (KEY)0049583220170000069000300334stabilityevaluationofthreelayeredjournalbearingwit DE-627 ger DE-627 rakwb eng 660 DNB TVVLN Rao verfasserin aut Stability evaluation of three-layered journal bearing with slip/partial slip 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip. Nutzungsrecht: © Emerald Publishing Limited Dimensional analysis Numerical analysis Stability analysis Tribology Slip Velocity Mechanical engineering Studies Pressure distribution Rotation Journal bearings Thresholds AMA Rani oth M Awang oth FM Hashim oth Enthalten in Industrial lubrication and tribology Droitwich, Worcs. : Peterson, 1967 69(2017), 3, Seite 334-341 (DE-627)129603643 (DE-600)241754-6 (DE-576)015097536 0036-8792 nnns volume:69 year:2017 number:3 pages:334-341 http://dx.doi.org/10.1108/ILT-08-2016-0184 Volltext https://search.proquest.com/docview/1902388840 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_30 GBV_ILN_70 AR 69 2017 3 334-341
allfieldsGer	10.1108/ILT-08-2016-0184 doi PQ20170901 (DE-627)OLC199442625X (DE-599)GBVOLC199442625X (PRQ)e1332-57cf86dd53f9b58cf6156f9a38b4fd096c30bcffabac93c4f91e20080d3429a00 (KEY)0049583220170000069000300334stabilityevaluationofthreelayeredjournalbearingwit DE-627 ger DE-627 rakwb eng 660 DNB TVVLN Rao verfasserin aut Stability evaluation of three-layered journal bearing with slip/partial slip 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip. Nutzungsrecht: © Emerald Publishing Limited Dimensional analysis Numerical analysis Stability analysis Tribology Slip Velocity Mechanical engineering Studies Pressure distribution Rotation Journal bearings Thresholds AMA Rani oth M Awang oth FM Hashim oth Enthalten in Industrial lubrication and tribology Droitwich, Worcs. : Peterson, 1967 69(2017), 3, Seite 334-341 (DE-627)129603643 (DE-600)241754-6 (DE-576)015097536 0036-8792 nnns volume:69 year:2017 number:3 pages:334-341 http://dx.doi.org/10.1108/ILT-08-2016-0184 Volltext https://search.proquest.com/docview/1902388840 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_30 GBV_ILN_70 AR 69 2017 3 334-341
allfieldsSound	10.1108/ILT-08-2016-0184 doi PQ20170901 (DE-627)OLC199442625X (DE-599)GBVOLC199442625X (PRQ)e1332-57cf86dd53f9b58cf6156f9a38b4fd096c30bcffabac93c4f91e20080d3429a00 (KEY)0049583220170000069000300334stabilityevaluationofthreelayeredjournalbearingwit DE-627 ger DE-627 rakwb eng 660 DNB TVVLN Rao verfasserin aut Stability evaluation of three-layered journal bearing with slip/partial slip 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip. Nutzungsrecht: © Emerald Publishing Limited Dimensional analysis Numerical analysis Stability analysis Tribology Slip Velocity Mechanical engineering Studies Pressure distribution Rotation Journal bearings Thresholds AMA Rani oth M Awang oth FM Hashim oth Enthalten in Industrial lubrication and tribology Droitwich, Worcs. : Peterson, 1967 69(2017), 3, Seite 334-341 (DE-627)129603643 (DE-600)241754-6 (DE-576)015097536 0036-8792 nnns volume:69 year:2017 number:3 pages:334-341 http://dx.doi.org/10.1108/ILT-08-2016-0184 Volltext https://search.proquest.com/docview/1902388840 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_30 GBV_ILN_70 AR 69 2017 3 334-341
language	English
source	Enthalten in Industrial lubrication and tribology 69(2017), 3, Seite 334-341 volume:69 year:2017 number:3 pages:334-341
sourceStr	Enthalten in Industrial lubrication and tribology 69(2017), 3, Seite 334-341 volume:69 year:2017 number:3 pages:334-341
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Dimensional analysis Numerical analysis Stability analysis Tribology Slip Velocity Mechanical engineering Studies Pressure distribution Rotation Journal bearings Thresholds
dewey-raw	660
isfreeaccess_bool	false
container_title	Industrial lubrication and tribology
authorswithroles_txt_mv	TVVLN Rao @@aut@@ AMA Rani @@oth@@ M Awang @@oth@@ FM Hashim @@oth@@
publishDateDaySort_date	2017-01-01T00:00:00Z
hierarchy_top_id	129603643
dewey-sort	3660
id	OLC199442625X
language_de	englisch
fullrecord	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a2200265 4500</leader><controlfield tag="001">OLC199442625X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230715053609.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">170721s2017 xx \|\|\|\|\| 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1108/ILT-08-2016-0184</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">PQ20170901</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC199442625X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVOLC199442625X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(PRQ)e1332-57cf86dd53f9b58cf6156f9a38b4fd096c30bcffabac93c4f91e20080d3429a00</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(KEY)0049583220170000069000300334stabilityevaluationofthreelayeredjournalbearingwit</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">660</subfield><subfield code="q">DNB</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">TVVLN Rao</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Stability evaluation of three-layered journal bearing with slip/partial slip</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2017</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip.</subfield></datafield><datafield tag="540" ind1=" " ind2=" "><subfield code="a">Nutzungsrecht: © Emerald Publishing Limited</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Dimensional analysis</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Numerical analysis</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Stability analysis</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Tribology</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Slip</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Velocity</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Mechanical engineering</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Studies</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Pressure distribution</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Rotation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Journal bearings</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Thresholds</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">AMA Rani</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">M Awang</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">FM Hashim</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Industrial lubrication and tribology</subfield><subfield code="d">Droitwich, Worcs. : Peterson, 1967</subfield><subfield code="g">69(2017), 3, Seite 334-341</subfield><subfield code="w">(DE-627)129603643</subfield><subfield code="w">(DE-600)241754-6</subfield><subfield code="w">(DE-576)015097536</subfield><subfield code="x">0036-8792</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:69</subfield><subfield code="g">year:2017</subfield><subfield code="g">number:3</subfield><subfield code="g">pages:334-341</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">http://dx.doi.org/10.1108/ILT-08-2016-0184</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://search.proquest.com/docview/1902388840</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-CHE</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-DE-84</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_30</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">69</subfield><subfield code="j">2017</subfield><subfield code="e">3</subfield><subfield code="h">334-341</subfield></datafield></record></collection>
author	TVVLN Rao
spellingShingle	TVVLN Rao ddc 660 misc Dimensional analysis misc Numerical analysis misc Stability analysis misc Tribology misc Slip misc Velocity misc Mechanical engineering misc Studies misc Pressure distribution misc Rotation misc Journal bearings misc Thresholds Stability evaluation of three-layered journal bearing with slip/partial slip
authorStr	TVVLN Rao
ppnlink_with_tag_str_mv	@@773@@(DE-627)129603643
format	Article
dewey-ones	660 - Chemical engineering
delete_txt_mv	keep
author_role	aut
collection	OLC
remote_str	false
illustrated	Not Illustrated
issn	0036-8792
topic_title	660 DNB Stability evaluation of three-layered journal bearing with slip/partial slip Dimensional analysis Numerical analysis Stability analysis Tribology Slip Velocity Mechanical engineering Studies Pressure distribution Rotation Journal bearings Thresholds
topic	ddc 660 misc Dimensional analysis misc Numerical analysis misc Stability analysis misc Tribology misc Slip misc Velocity misc Mechanical engineering misc Studies misc Pressure distribution misc Rotation misc Journal bearings misc Thresholds
topic_unstemmed	ddc 660 misc Dimensional analysis misc Numerical analysis misc Stability analysis misc Tribology misc Slip misc Velocity misc Mechanical engineering misc Studies misc Pressure distribution misc Rotation misc Journal bearings misc Thresholds
topic_browse	ddc 660 misc Dimensional analysis misc Numerical analysis misc Stability analysis misc Tribology misc Slip misc Velocity misc Mechanical engineering misc Studies misc Pressure distribution misc Rotation misc Journal bearings misc Thresholds
format_facet	Aufsätze Gedruckte Aufsätze
format_main_str_mv	Text Zeitschrift/Artikel
carriertype_str_mv	nc
author2_variant	a r ar m a ma f h fh
hierarchy_parent_title	Industrial lubrication and tribology
hierarchy_parent_id	129603643
dewey-tens	660 - Chemical engineering
hierarchy_top_title	Industrial lubrication and tribology
isfreeaccess_txt	false
familylinks_str_mv	(DE-627)129603643 (DE-600)241754-6 (DE-576)015097536
title	Stability evaluation of three-layered journal bearing with slip/partial slip
ctrlnum	(DE-627)OLC199442625X (DE-599)GBVOLC199442625X (PRQ)e1332-57cf86dd53f9b58cf6156f9a38b4fd096c30bcffabac93c4f91e20080d3429a00 (KEY)0049583220170000069000300334stabilityevaluationofthreelayeredjournalbearingwit
title_full	Stability evaluation of three-layered journal bearing with slip/partial slip
author_sort	TVVLN Rao
journal	Industrial lubrication and tribology
journalStr	Industrial lubrication and tribology
lang_code	eng
isOA_bool	false
dewey-hundreds	600 - Technology
recordtype	marc
publishDateSort	2017
contenttype_str_mv	txt
container_start_page	334
author_browse	TVVLN Rao
container_volume	69
class	660 DNB
format_se	Aufsätze
author-letter	TVVLN Rao
doi_str_mv	10.1108/ILT-08-2016-0184
dewey-full	660
title_sort	stability evaluation of three-layered journal bearing with slip/partial slip
title_auth	Stability evaluation of three-layered journal bearing with slip/partial slip
abstract	Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip.
abstractGer	Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip.
abstract_unstemmed	Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip.
collection_details	GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_30 GBV_ILN_70
container_issue	3
title_short	Stability evaluation of three-layered journal bearing with slip/partial slip
url	http://dx.doi.org/10.1108/ILT-08-2016-0184 https://search.proquest.com/docview/1902388840
remote_bool	false
author2	AMA Rani M Awang FM Hashim
author2Str	AMA Rani M Awang FM Hashim
ppnlink	129603643
mediatype_str_mv	n
isOA_txt	false
hochschulschrift_bool	false
author2_role	oth oth oth
doi_str	10.1108/ILT-08-2016-0184
up_date	2024-07-03T17:48:39.611Z
_version_	1803581044411072512
fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a2200265 4500</leader><controlfield tag="001">OLC199442625X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230715053609.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">170721s2017 xx \|\|\|\|\| 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1108/ILT-08-2016-0184</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">PQ20170901</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC199442625X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVOLC199442625X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(PRQ)e1332-57cf86dd53f9b58cf6156f9a38b4fd096c30bcffabac93c4f91e20080d3429a00</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(KEY)0049583220170000069000300334stabilityevaluationofthreelayeredjournalbearingwit</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">660</subfield><subfield code="q">DNB</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">TVVLN Rao</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Stability evaluation of three-layered journal bearing with slip/partial slip</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2017</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Purpose This paper aims to present stability of a three-layered journal bearing considering magnitude of the layers’ thicknesses and viscosities with slip/partial slip on the bearing surface. Design/methodology/approach Modified Reynolds equation based on one-dimensional analysis is derived for a three-layered journal bearing with slip/partial slip. Dynamic coefficients are derived based on infinitesimal perturbation method. Linearized stability analysis is presented taking into account slip/partial slip on bearing surface; thicknesses and viscosities of bearing surface layer; and core layer and journal surface layer. Findings Results of threshold speed and critical whirl frequency ratio coefficients (Cω, CΩ), stiffness (Kij for i = x,y) and damping (Bij for i = x, y) coefficients and threshold speed (ωs) and critical whirl frequency ratio (Ωs) are presented. The bearing surface is analyzed for slip (total surface with slip) and partial slip (partial surface with slip). The slip-on bearing surface reduces stability, while partial slip improves bearing stability. The threshold speed coefficient (Cω) decreases with slip on bearing surface. The threshold speed (ωs) and critical whirl frequency ratio (Ωs) are influenced by the variation of threshold speed coefficient (Cω) and critical whirl frequency ratio coefficient (CΩ), respectively. A three-layered journal bearing with partial slip and thick high viscosity bearing surface layer results in higher threshold speed coefficient and has a potential to improve stability of journal bearing. The analyses indicate that optimal angular extent of partial slip region (θs) enhances the stability of journal bearing. Originality/value The paper presents parametric study of stability coefficients (Cω and CΩ) and evaluation of threshold speed (ωs) and critical whirl frequency ratio (Ωs) of a three-layered journal bearing with slip/partial slip.</subfield></datafield><datafield tag="540" ind1=" " ind2=" "><subfield code="a">Nutzungsrecht: © Emerald Publishing Limited</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Dimensional analysis</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Numerical analysis</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Stability analysis</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Tribology</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Slip</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Velocity</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Mechanical engineering</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Studies</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Pressure distribution</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Rotation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Journal bearings</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Thresholds</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">AMA Rani</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">M Awang</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">FM Hashim</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Industrial lubrication and tribology</subfield><subfield code="d">Droitwich, Worcs. : Peterson, 1967</subfield><subfield code="g">69(2017), 3, Seite 334-341</subfield><subfield code="w">(DE-627)129603643</subfield><subfield code="w">(DE-600)241754-6</subfield><subfield code="w">(DE-576)015097536</subfield><subfield code="x">0036-8792</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:69</subfield><subfield code="g">year:2017</subfield><subfield code="g">number:3</subfield><subfield code="g">pages:334-341</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">http://dx.doi.org/10.1108/ILT-08-2016-0184</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://search.proquest.com/docview/1902388840</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-CHE</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-DE-84</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_30</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">69</subfield><subfield code="j">2017</subfield><subfield code="e">3</subfield><subfield code="h">334-341</subfield></datafield></record></collection>
score	7.3985004

Nicht das Richtige dabei?

Schreiben Sie uns!

Stability evaluation of three-layered journal bearing with slip/partial slip

Nicht das Richtige dabei?

Zugang & Verfügbarkeit

Vorhandene Bände

Nicht das Richtige dabei?