Method for Solution of Lubrication Problems With Temperature and Elasticity Effects: Application to Sector, Tilting-Pad Bearings

Castelli, Vittorio; Malanoski, S. B.

doi:10.1115/1.3555016

Cited by 22 publications

(12 citation statements)

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“…paper at the World Tribology Congress in London, United Kingdom, September 8- 12,1997 Final manuscript approved June 8,1998 The pivot arrangement is more commonly used in smaller bearings. As the size of the bearing increases, the higher loads and significant thermal influences caused by shear heating within the lubricant film resuit in pad deflections which can lead to reductions in the lubricant film thickness.…”

Section: Presented As a Society Of Tribologists And Lubrication Enginmentioning

confidence: 99%

Spring-Supported Thrust Bearings Used in Hydroelectric Generators: Laboratory Test Facility©

Yuan

Medley

Ferguson³

1999

Tribology Transactions

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A test facility was developed for the experimerltal investigation ofthe large spring-supported thrust bearings used in hydroelectric getzercitors. The test bearing had an outer diameter of 1.168 m, ihus making it large enough to simulate most of the features of the tlzrcisl bearings in the field, yet small enough to be placed convetlierztly in a11 engineering laboratoty. It~strumentation included a distributiotl of thennocociples and pressure taps along wirh disl~lace~nenr probes of eddy current type that were located in rhe rntor to measure oil filtn thickness. A detailed description of rhe lest facility was provided alottg with some representative results crrrrl a descriptiot~ of sotne experimental d~ficulties. A survey of the ~.elevatzt literature published in the past 40 years suggested that rlzis apparatus was ~iniqcie it1 its ability to study relatively large spring-supporied thrust bearings in the laboratory.

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Section: Presented As a Society Of Tribologists And Lubrication Enginmentioning

confidence: 99%

Spring-Supported Thrust Bearings Used in Hydroelectric Generators: Laboratory Test Facility©

Yuan

Medley

Ferguson³

1999

Tribology Transactions

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“…Substitute equations (2) and (3) and the derived w velocity into equation (1) and follow the procedures developed by Yang and Rodkiewicz, 22 the energy equation can be transformed into the dimensionless form, equation (5). A bar over the symbol indicates a nondimensional quantity.…”

Section: Energy Equationmentioning

confidence: 99%

“…The energy equation in hydrodynamic lubrication theory is in the form of equation (1) in Cartesian coordinates…”

Section: Energy Equationmentioning

confidence: 99%

“…To the knowledge of the authors, Castelli et al 1 did the first TEHD analysis in late 1960s. They took pad deflection, temperature, and pressure into consideration.…”

Section: Introductionmentioning

confidence: 99%

“…From equation (67), one can easily get the velocity w and insert it into equation (1). By introducing the above reference values into the resulting formulation, equation (68) can be obtained.…”

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confidence: 99%

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Numerical analysis of single pad of thrust bearing with the energy equation solved by the characteristic-based split method

Wang

Yin

et al. 2015

Advances in Mechanical Engineering

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The solution of the energy equation of thermo-elasto-hydrodynamic analysis for bearings by the finite element method usually leads to convergence difficulties due to the presence of convection terms inherited from the Navier-Stokes equations. In this work, the numerical analysis is performed with finite element method universally by adopting the characteristic-based split method to solve the energy equation. Five case studies of fixed pad thrust bearings have been set up with different geometries, loads, and lubricants. The two-dimensional film pressure is obtained by solving the Reynolds equation with pre-defined axial load on the pad. The energy equation of the lubricant film and the heat transfer equation of the bearing pad are handled by characteristic-based split method and conventional finite element method in three-dimensional space, respectively. Hot oil carry-over effect and variable lubricant viscosity are considered in the simulations. The results of the temperature distributions in the lubricant film and the bearing pad are presented. The possible usability of characteristic-based split method for future thermo-elasto-hydrodynamic analysis is discussed.

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Thermo-elasto-hydrodynamische Analyse von Axiallagern mit kippligen Kreissegmenten

Peeken

Abdel-Latif

1982

Forsch Ing-Wes

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Method for Solution of Lubrication Problems With Temperature and Elasticity Effects: Application to Sector, Tilting-Pad Bearings

Cited by 22 publications

References 0 publications

Spring-Supported Thrust Bearings Used in Hydroelectric Generators: Laboratory Test Facility©

Spring-Supported Thrust Bearings Used in Hydroelectric Generators: Laboratory Test Facility©

Numerical analysis of single pad of thrust bearing with the energy equation solved by the characteristic-based split method

Thermo-elasto-hydrodynamische Analyse von Axiallagern mit kippligen Kreissegmenten

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