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High Pressure Rheology For Quantitative Elastohydrodynamics

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High Pressure Rheology for Quantitative Elastohydrodynamics

High Pressure Rheology for Quantitative Elastohydrodynamics Book
Author : Scott S. Bair
Publisher : Elsevier
Release : 2019-04-18
ISBN : 0128163100
Language : En, Es, Fr & De

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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 Book
Author : P. E. Scott Bair,Scott S. Bair
Publisher : Elsevier Science Limited
Release : 2007-04-13
ISBN : 0987650XXX
Language : En, Es, Fr & De

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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.

High Pressure Rheology for Quantitative Elastohydrodynamics

High Pressure Rheology for Quantitative Elastohydrodynamics Book
Author : Scott S Bair
Publisher : Elsevier
Release : 2007-03-06
ISBN : 9780080475301
Language : En, Es, Fr & De

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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.

Rheology Volume I

Rheology   Volume I Book
Author : Crispulo Gallegos
Publisher : EOLSS Publications
Release : 2010-11-30
ISBN : 1848263198
Language : En, Es, Fr & De

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Book Description :

Rheology is a component of Encyclopedia of Chemical Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty Encyclopedias. Rheology is the study of the flow of matter. It is classified as a physics discipline and focuses on substances that do not maintain a constant viscosity or state of flow. That can involve liquids, soft solids and solids that are under conditions that cause them to flow. It applies to substances which have a complex molecular structure, such as muds, sludges, suspensions, polymers and other glass formers, as well as many foods and additives, bodily fluids and other biological materials. The theme on Rheology focuses on five main areas, namely, basic concepts of rheology; rheometry; rheological materials, rheological processes and theoretical rheology. Of course, many of the chapters contain material from more than one general area. Rheology is an interdisciplinary subject which embraces many aspects of mathematics, physics, chemistry, engineering and biology. These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.

Finite Element Modeling of Elastohydrodynamic Lubrication Problems

Finite Element Modeling of Elastohydrodynamic Lubrication Problems Book
Author : Wassim Habchi
Publisher : John Wiley & Sons
Release : 2018-07-23
ISBN : 1119225124
Language : En, Es, Fr & De

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Book Description :

Covers the latest developments in modeling elastohydrodynamic lubrication (EHL) problems using the finite element method (FEM) This comprehensive guide introduces readers to a powerful technology being used today in the modeling of elastohydrodynamic lubrication (EHL) problems. It provides a general framework based on the finite element method (FEM) for dealing with multi-physical problems of complex nature (such as the EHL problem) and is accompanied by a website hosting a user-friendly FEM software for the treatment of EHL problems, based on the methodology described in the book. Finite Element Modeling of Elastohydrodynamic Lubrication Problems begins with an introduction to both the EHL and FEM fields. It then covers Standard FEM modeling of EHL problems, before going over more advanced techniques that employ model order reduction to allow significant savings in computational overhead. Finally, the book looks at applications that show how the developed modeling framework could be used to accurately predict the performance of EHL contacts in terms of lubricant film thickness, pressure build-up and friction coefficients under different configurations. Finite Element Modeling of Elastohydrodynamic Lubrication Problems offers in-depth chapter coverage of Elastohydrodynamic Lubrication and its FEM Modeling, under Isothermal Newtonian and Generalized-Newtonian conditions with the inclusion of Thermal Effects; Standard FEM Modeling; Advanced FEM Modeling, including Model Order Reduction techniques; and Applications, including Pressure, Film Thickness and Friction Predictions, and Coated EHL. This book: Comprehensively covers the latest technology in modeling EHL problems Focuses on the FEM modeling of EHL problems Incorporates advanced techniques based on model order reduction Covers applications of the method to complex EHL problems Accompanied by a website hosting a user-friendly FEM-based EHL software Finite Element Modeling of Elastohydrodynamic Lubrication Problems is an ideal book for researchers and graduate students in the field of Tribology.

Grease Lubrication in Rolling Bearings

Grease Lubrication in Rolling Bearings Book
Author : Piet M. Lugt
Publisher : John Wiley & Sons
Release : 2012-12-10
ISBN : 1118483979
Language : En, Es, Fr & De

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Book Description :

The definitive book on the science of grease lubrication forroller and needle bearings in industrial and vehicleengineering. Grease Lubrication in Rolling Bearings provides anoverview of the existing knowledge on the various aspects of greaselubrication (including lubrication systems) and the state of theart models that exist today. The book reviews the physical andchemical aspects of grease lubrication, primarily directed towardslubrication of rolling bearings. The first part of the book covers grease composition, propertiesand rheology, including thermal and dynamics properties. Laterchapters cover the dynamics of greased bearings, including greaselife, bearing life, reliability and testing. The final chaptercovers lubrications systems – the systems that deliver greaseto the components requiring lubrication. Grease Lubrication in Rolling Bearings: Describes the underlying physical and chemical properties ofgrease. Discusses the effect of load, speed, temperature, bearinggeometry, bearing materials and grease type on bearing wear. Covers both bearing and grease performance, includingthermo-mechanical ageing and testing methodologies. It is intended for researchers and engineers in thepetro-chemical and bearing industry, industries related to this(e.g. wind turbine industry, automotive industry) and forapplication engineers. It will also be of interest for teaching inpost-graduate courses.

Journal of Tribology

Journal of Tribology Book
Author : Anonim
Publisher : Unknown
Release : 2008
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Journal of Tribology book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Proceedings

Proceedings Book
Author : Anonim
Publisher : Unknown
Release : 2007
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Proceedings book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

The British National Bibliography

The British National Bibliography Book
Author : Arthur James Wells
Publisher : Unknown
Release : 2007
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download The British National Bibliography book written by Arthur James Wells, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Elasto Hydrodynamic Lubrication

Elasto Hydrodynamic Lubrication Book
Author : D. Dowson,G. R. Higginson
Publisher : Elsevier
Release : 2014-07-18
ISBN : 1483181898
Language : En, Es, Fr & De

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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.

Encyclopedia of Tribology

Encyclopedia of Tribology Book
Author : Q. Jane Wang,Yip-Wah Chung
Publisher : Springer
Release : 2013-09-26
ISBN : 9780387928982
Language : En, Es, Fr & De

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Book Description :

TRIBOLOGY – the study of friction, wear and lubrication – impacts almost every aspect of our daily lives. The Springer Encyclopedia of Tribology is an authoritative and comprehensive reference covering all major aspects of the science and engineering of tribology that are relevant to researchers across all engineering industries and related scientific disciplines. This is the first major reference that brings together the science, engineering and technological aspects of tribology of this breadth and scope in a single work. Developed and written by leading experts in the field, the Springer Encyclopedia of Tribology covers the fundamentals as well as advanced applications across material types, different length and time scales, and encompassing various engineering applications and technologies. Exciting new areas such as nanotribology, tribochemistry and biotribology have also been included. As a six-volume set, the Springer Encyclopedia of Tribology comprises 1630 entries written by authoritative experts in each subject area, under the guidance of an international panel of key researchers from academia, national laboratories and industry. With alphabetically-arranged entries, concept diagrams and cross-linking features, this comprehensive work provides easy access to essential information for both researchers and practicing engineers in the fields of engineering (aerospace, automotive, biomedical, chemical, electrical, and mechanical) as well as materials science, physics, and chemistry.

Nanoscience Friction and Rheology on the Nanometer Scale

Nanoscience  Friction and Rheology on the Nanometer Scale Book
Author : E Meyer,T Gyalog,R M Overney,K Dransfeld
Publisher : World Scientific
Release : 1998-12-30
ISBN : 981449934X
Language : En, Es, Fr & De

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Book Description :

Friction force microscopy is an important analytical tool in the field of tribology on the nanometer-scale. The contact area between the probing tip and the sample is reduced to some square nanometers, corresponding to the ideal of a single asperity contact. Traditional concepts, such as friction coefficients, adhesion and elasticity and stick-slip are re-examined with this novel technique. New concepts based upon classical and quantum mechanics are investigated. Contents:Introduction and MotivationInstrumentsNormal Forces at the Atomic ScaleUnderstanding of Lateral ForcesDissipation MechanismsNanorheology and NanoconfinementGeneration of Ultrasonic Waves in Sliding FrictionFriction Force Microscopy ExperimentsAppendix: Instrumental Aspects of Force Microscopy Readership: Graduate and researchers in physics, chemistry and materials science. keywords: “This book provides a good introduction to tribology and will be of use for students.” Applied Rheology

Synthetics Mineral Oils and Bio Based Lubricants

Synthetics  Mineral Oils  and Bio Based Lubricants Book
Author : Leslie R. Rudnick
Publisher : CRC Press
Release : 2005-12-22
ISBN : 1420027182
Language : En, Es, Fr & De

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Book Description :

As the field of tribology has evolved, the lubrication industry is also progressing at an extraordinary rate. Updating the author's bestselling publication, Synthetic Lubricants and High-Performance Functional Fluids, this book features the contributions of over 60 specialists, ten new chapters, and a new title to reflect the evolving nature of the

Nonequilibrium Molecular Dynamics

Nonequilibrium Molecular Dynamics Book
Author : Billy D. Todd,Peter J. Daivis
Publisher : Cambridge University Press
Release : 2017-03-10
ISBN : 0521190096
Language : En, Es, Fr & De

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Book Description :

This coherent collection of theory, algorithms, and illustrative results presents the field of nonequilibrium molecular dynamics in detail.

Colloidal Suspension Rheology

Colloidal Suspension Rheology Book
Author : Jan Mewis,Norman J. Wagner
Publisher : Cambridge University Press
Release : 2012
ISBN : 0521515998
Language : En, Es, Fr & De

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Book Description :

Presented in an accessible and introductory manner, this is the first book devoted to the comprehensive study of colloidal suspensions.

Elastohydrodynamics

Elastohydrodynamics Book
Author : Ramsey Gohar
Publisher : Ellis Horwood
Release : 1988
ISBN : 0987650XXX
Language : En, Es, Fr & De

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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. Copyright © Libri GmbH. All rights reserved.

Rheology Abstracts

Rheology Abstracts Book
Author : Anonim
Publisher : Unknown
Release : 1981
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Rheology Abstracts book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Grease Lubrication in Rolling Bearings

Grease Lubrication in Rolling Bearings Book
Author : Piet M. Lugt
Publisher : John Wiley & Sons
Release : 2013-02-18
ISBN : 1118353919
Language : En, Es, Fr & De

DOWNLOAD

Book Description :

The definitive book on the science of grease lubrication for roller and needle bearings in industrial and vehicle engineering. Grease Lubrication in Rolling Bearings provides an overview of the existing knowledge on the various aspects of grease lubrication (including lubrication systems) and the state of the art models that exist today. The book reviews the physical and chemical aspects of grease lubrication, primarily directed towards lubrication of rolling bearings. The first part of the book covers grease composition, properties and rheology, including thermal and dynamics properties. Later chapters cover the dynamics of greased bearings, including grease life, bearing life, reliability and testing. The final chapter covers lubrications systems – the systems that deliver grease to the components requiring lubrication. Grease Lubrication in Rolling Bearings: Describes the underlying physical and chemical properties of grease. Discusses the effect of load, speed, temperature, bearing geometry, bearing materials and grease type on bearing wear. Covers both bearing and grease performance, including thermo-mechanical ageing and testing methodologies. It is intended for researchers and engineers in the petro-chemical and bearing industry, industries related to this (e.g. wind turbine industry, automotive industry) and for application engineers. It will also be of interest for teaching in post-graduate courses.

Coatings Tribology

Coatings Tribology Book
Author : Kenneth Holmberg,Allan Matthews
Publisher : Elsevier
Release : 2009-03-18
ISBN : 9780080931463
Language : En, Es, Fr & De

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Book Description :

The surface coating field is a rapidly developing area of science and technology that offers new methods and techniques to control friction and wear. New coating types are continually being developed and the potential applications in different industrial fields are ever growing, ranging from machine components and consumer products to medical instruments and prostheses. This book provides an extensive review of the latest technology in the field, addressing techniques such as physical and chemical vapour deposition, the tribological properties of coatings, and coating characterization and performance evaluation techniques. Eleven different cases are examined in close detail to demonstrate the improvement of tribological properties and a guide to selecting coatings is also provided. This second edition is still the only monograph in the field to give a holistic view of the subject and presents all aspects, including test and performance data as well as insights into mechanisms and interactions, thus providing the level of understanding vital for the practical application of coatings. * An extensive review of the latest developments in the field of surface coatings * Presents both theory and practical applications * Includes a guide for selecting coatings

Rheology

Rheology Book
Author : Aleksandr I︠A︡kovlevich Malkin,Alexander Y. Malkin,Avraam I. Isayev
Publisher : ChemTec Publishing
Release : 2006
ISBN : 189519833X
Language : En, Es, Fr & De

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Book Description :

There are few comprehensive books on the market on the subject of Rheology -- the complex science dealing with flow and deformation of matter -- and these are several years old. At least now there is a book that explains the meaning of a science that many scientists need to use but only a few can fully grasp. It does so by striking the balance between oversimplification and overload of theory in a very compelling and readable manner. The authors' systematic presentation enables the authors to include all components of Rheology in one volume. The first four chapters of this book discuss various aspects of theoretical Rheology and, by examples of many studies, show how particular theory, model, or equation can be used in solving different problems. The main emphasis is on liquids, but solid materials are discussed in one full chapter as well. Methods of measurement and raw data treatment are included in one large chapter which constitutes more than one quarter of the book. Eight groups of methods are discussed giving many choices for experimentation and guidance on where and how to use them properly. The final chapter shows how to use rheological methods in different groups of products and methods of their manufacture. Usefulness of chemorheological (rheokinetical) measurements is also emphasized. This chapter continues with examples of purposeful applications in practical matters.