Thermohydrodynamic Modeling of Leading-Edge Groove Bearings under Starvation Condition

He, Minhui; Allaire, Paul E.; Barrett, Lloyd; Nicholas, J. C.

doi:10.1080/05698190591008531

Cited by 29 publications

(13 citation statements)

References 7 publications

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“…Modern tilting pad bearing lubrication theory is based on thermoelastohydrodynamic models that include equations describing the hydrodynamic flows, heat transfer and shear heating, and mechanical deformations [63][64][65][66]. Whiles these solutions evaluate temperature effects in the lubricant film and pad deformations, they do not involve the advanced elastohydrodynamic solutions found for ball or roller bearings.…”

Section: Generalized Reynolds Equationmentioning

confidence: 99%

A Review of Tilting Pad Bearing Theory

Dimond

Younan

Allaire

2011

International Journal of Rotating Machinery

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A theoretical basis for static and dynamic operation of tilting pad journal bearings (TPJBs) has evolved over the last 50 years. Originally demonstrated by Lund using the pad assembly method and a classic Reynolds equation solution, the current state of the art includes full thermoelastohydrodynamic solutions of the generalized Reynolds equation that include fluid convective inertia effects, pad motions; and thermal and mechanical deformations of the pads and shaft. The development of TPJB theory is reviewed, emphasizing dynamic modeling. The paper begins with the early analyses of fixed geometry bearings and continues to modern analyses that include pad motion and stiffness and damping effects. The development of thermohydrodynamic, thermoelastohydrodynamic, and bulk-flow analyses is reviewed. The theories of TPJB dynamics, including synchronous and nonsynchronous models, are reviewed. A discussion of temporal inertia effects in tilting pad bearing is considered. Future trends are discussed, and a path for experimental verification is proposed.

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Section: Generalized Reynolds Equationmentioning

confidence: 99%

A Review of Tilting Pad Bearing Theory

Dimond

Younan

Allaire

2011

International Journal of Rotating Machinery

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“…Generally, the bearings operate fully-flooded, with the lubricant filling the full width and circumference of the bearing. Previous studies suggest that bearing friction can be reduced by reducing oil feed pressure [15,16]. The reduction is at least partly explained by observations of the film in a journal bearing with a transparent bush which show that when the oil supply is restricted, cavitation develops and the film area is reduced [17,18,19].…”

Section: A Modified Oil Lubrication System With Flow Control To Reducmentioning

confidence: 80%

A Modified Oil Lubrication System with Flow Control to Reduce Crankshaft Bearing Friction in a Litre 4 Cylinder Diesel Engine

Shayler¹,

Li²,

Li³

et al. 2016

SAE Technical Paper Series

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“…Elrod and Ng [6], and Safar and Szeri [7] also developed turbulent Reynolds equations with the eddy viscosity assumption, but their flow-pressure relationship was nonlinear. This method, in spite of requiring an iterative scheme, is widely used in literature for different bearing and seal applications [8,9,10,11]. An alternative methodology of including turbulence effects was suggested by Hirs [12].…”

Section: Introductionmentioning

confidence: 98%