Elastohydrodynamics

Elastohydrodynamics PDF Author: Ramsey Gohar
Publisher: World Scientific
ISBN: 9781860941702
Category : Technology & Engineering
Languages : en
Pages : 474

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Book Description
Elastohydrodynamic lubrication (EHL) is a difficult topic, embracing several disciplines, which can cause many problems for engineers and scientists. This up-to-date volume explains the subject both theoretically and experimentally. Moreover, with a refreshing approach and using several novel techniques of application, it provides lucid coverage of new and important findings. Here, in one volume, are the results of much research over the last forty years. The author's clear explanation of the theory of EHL is authoritatively applied to a wide range of related topics, with physical explanations wherever possible. Many of the experimental techniques described were carried out at the Imperial College Lubrication Laboratory, where the application of interferometry (a means of measuring the EHL film thickness) was pioneered.

Elastohydrodynamics

Elastohydrodynamics PDF Author: Ramsey Gohar
Publisher: World Scientific
ISBN: 9781860941702
Category : Technology & Engineering
Languages : en
Pages : 474

Get Book Here

Book Description
Elastohydrodynamic lubrication (EHL) is a difficult topic, embracing several disciplines, which can cause many problems for engineers and scientists. This up-to-date volume explains the subject both theoretically and experimentally. Moreover, with a refreshing approach and using several novel techniques of application, it provides lucid coverage of new and important findings. Here, in one volume, are the results of much research over the last forty years. The author's clear explanation of the theory of EHL is authoritatively applied to a wide range of related topics, with physical explanations wherever possible. Many of the experimental techniques described were carried out at the Imperial College Lubrication Laboratory, where the application of interferometry (a means of measuring the EHL film thickness) was pioneered.

Elastohydrodynamics - '96

Elastohydrodynamics - '96 PDF Author: C. Taylor
Publisher: Elsevier
ISBN: 0080875963
Category : Technology & Engineering
Languages : en
Pages : 773

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Book Description
This volume represents the latest issue of a collection of Proceedings each dealing with a different topic in Tribology. This volume contains the Proceedings from the 23rd Leeds-Lyon Symposium which addressed the topic of Elastohydrodynamics and was attended by many international experts in the field.The Keynote Address was presented by Professor Stathis Ioannides on the subject of "Tribology in Rolling Element Bearings" and was followed by fifteen other sessions covering a wide variety of general areas from "Experimental" to "Lubricant Properties". In addition, nine other invited technical papers were presented to support the sessions.

IUTAM Symposium on Elastohydrodynamics and Micro-elastohydrodynamics

IUTAM Symposium on Elastohydrodynamics and Micro-elastohydrodynamics PDF Author: R.W. Snidle
Publisher: Springer Science & Business Media
ISBN: 9781402045325
Category : Technology & Engineering
Languages : en
Pages : 470

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Book Description
This volume contains the proceedings of the IUTAM Symposium on Elastohydrodynamics and Microelastohydrodynamics held in Cardiff from 1-3 September 2004. It contains 31 articles by leading researchers in the field. The symposium focused on theoretical, experimental and computational issues in elastohydrodynamic lubrication (EHL) both in relation to smooth surfaces and in situations where the film is of the same order or thinner than the surface roughness (micro-EHL). The last IUTAM Symposium in this general area of contact of deformable bodies was in 1974. The emphasis in the Symposium was upon fundamental issues such as: solution methods; lubricant rheological models, thermal effects; both low and high elastic modulus situations; human and replacement joints; fluid traction; dynamic effects, asperity lubrication and the failure of lubrication; surface fatigue and thermal distress under EHL conditions. The book will be useful to those active in basic elastohydrodynamics research who wish to gain an up-to-date understanding of the subject from leading experts in the field.

High Pressure Rheology for Quantitative Elastohydrodynamics

High Pressure Rheology for Quantitative Elastohydrodynamics PDF Author: Scott S. Bair
Publisher: Elsevier
ISBN: 0128163100
Category : Technology & Engineering
Languages : en
Pages : 389

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Book Description
High-Pressure Rheology for Quantitative Elastohydrodynamics, Second Edition, contains updated sections on scaling laws and thermal effects, including new sections on the importance of the pressure dependence of viscosity, the role of the localization limit of stress, and new material on the shear dependence of viscosity and temperature dependence viscosity. Since publication of the original edition, the experimental methods, the resulting property data and new correlations have resulted in a revolution in understanding of the mechanisms of film formation and the mechanical dissipation. - Describes lubricant rheology and dependence of lubricant viscosity and density on pressure and temperature - Provides a detailed description of the relationship of lubricant properties on pressure, temperature and shear stress - Includes data for many more liquids, including the recently characterized reference liquids

High Pressure Rheology for Quantitative Elastohydrodynamics

High Pressure Rheology for Quantitative Elastohydrodynamics PDF Author: Scott S. Bair
Publisher: Elsevier
ISBN: 0080475302
Category : Technology & Engineering
Languages : en
Pages : 262

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Book Description
Computational elastohydrodynamics, a part of tribology, has existed happily enough for about fifty years without the use of accurate models for the rheology of the liquids used as lubricants. For low molecular weight liquids, such as low viscosity mineral oils, it has been possible to calculate, with precision, the film thickness in a concentrated contact provided that the pressure and temperature are relatively low, even when the pressure variation of viscosity is not accurately modelled in detail. Other successes have been more qualitative in nature, using effective properties which come from the fitting of parameters used in calculations to experimental measurements of the contact behaviour, friction or film thickness. High Pressure Rheology for Quantitative Elastohydrodynamics is intended to provide a sufficiently accurate framework for the rheology of liquids at elevated pressure that it may be possible for computational elastohydrodynamics to discover the relationships between the behaviour of a lubricated concentrated contact and the measurable properties of the liquid lubricant. The required high-pressure measurement techniques are revealed in detail and data are presented for chemically well-defined liquids that may be used as quantitative reference materials.* Presents the property relations required for a quantitative calculation of the tribological behaviour of lubricated concentrated contacts.* Details of high-pressure experimental techniques.* Complete description of the pressure and temperature dependence of viscosity for high pressures.* Some little-known limitations on EHL modelling.

Elasto-Hydrodynamic Lubrication

Elasto-Hydrodynamic Lubrication PDF Author: D. Dowson
Publisher: Elsevier
ISBN: 1483181898
Category : Technology & Engineering
Languages : en
Pages : 254

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Book Description
Elasto-Hydrodynamic Lubrication deals with the mechanism of elasto-hydrodynamic lubrication, that is, the lubrication regime in operation over the small areas where machine components are in nominal point or line contact. The lubrication of rigid contacts is discussed, along with the effects of high pressure on the lubricant and bounding solids. The governing equations for the solution of elasto-hydrodynamic problems are presented. Comprised of 13 chapters, this volume begins with an overview of elasto-hydrodynamic lubrication and representation of contacts by cylinders, followed by a discussion on equations relevant to lubrication, including the Reynolds equation. The reader is then introduced to lubrication of rigid cylinders; the importance of film thickness in highly loaded rigid contacts; the elasticity of solids in contact; and the theory of elasto-hydrodynamic lubrication. Subsequent chapters focus on apparatus and measurements of film thickness and film shape; friction and viscosity; and lubrication of gears and roller bearings. This book will be of interest to tribologists.

Elastohydrodynamics

Elastohydrodynamics PDF Author: Ramsey Gohar
Publisher:
ISBN: 9780853128205
Category : Fluid-film bearings
Languages : en
Pages : 319

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Book Description


Elastohydrodynamics in Coating Flows

Elastohydrodynamics in Coating Flows PDF Author: Ferdinand Ruprecht Pranckh
Publisher:
ISBN:
Category :
Languages : en
Pages : 574

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NASA Thesaurus

NASA Thesaurus PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 882

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Elastohydrodynamics and Related Topics

Elastohydrodynamics and Related Topics PDF Author: D. Dowson
Publisher: Professional Engineering Publishing
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 448

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Book Description