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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 : 2007-04-27
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.

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.

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.

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.

A Bridge between Conceptual Frameworks

A Bridge between Conceptual Frameworks Book
Author : Raffaele Pisano
Publisher : Springer
Release : 2015-06-30
ISBN : 9401796459
Language : En, Es, Fr & De

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Book Description :

This book analyzes scientific problems within the history of physics, engineering, chemistry, astronomy and medicine, correlated with technological applications in the social context. When and how is tension between disciplines explicitly practised? What is the conceptual bridge between science researches and the organization of technological researches in the development of industrial applications? The authors explain various ways in which the sciences allowed advanced modelling on the one hand, and the development of new technological ideas on the other hand. An emphasis on the role played by mechanisms, production methods and instruments bestows a benefit on historical and scientific discourse: theories, institutions, universities, schools for engineers, social implications as well. Scholars from different traditions discuss the emergency style of thinking in methodology and, in theoretical perspective, aim to gather and re-evaluate the current thinking on this subject. It brings together contributions from leading experts in the field, and gives much-needed insight into the subject from a historical point of view. The volume composition makes for absorbing reading for historians, philosophers and scientists.

Applied Tribology

Applied Tribology Book
Author : Michael M. Khonsari,E. Richard Booser
Publisher : John Wiley & Sons
Release : 2017-08-01
ISBN : 1118700260
Language : En, Es, Fr & De

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Book Description :

Insightful working knowledge of friction, lubrication, and wear in machines Applications of tribology are widespread in industries ranging from aerospace, marine and automotive to power, process, petrochemical and construction. With world-renowned expert co-authors from academia and industry, Applied Tribology: Lubrication and Bearing Design, 3rd Edition provides a balance of application and theory with numerous illustrative examples. The book provides clear and up-to-date presentation of working principles of lubrication, friction and wear in vital mechanical components, such as bearings, seals and gears. The third edition has expanded coverage of friction and wear and contact mechanics with updated topics based on new developments in the field. Key features: Includes practical applications, homework problems and state-of-the-art references. Provides presentation of design procedure. Supplies clear and up-to-date information based on the authors’ widely referenced books and over 500 archival papers in this field. Applied Tribology: Lubrication and Bearing Design, 3rd Edition provides a valuable and authoritative resource for mechanical engineering professionals working in a wide range of industries with machinery including turbines, compressors, motors, electrical appliances and electronic components. Senior and graduate students in mechanical engineering will also find it a useful text and reference.

The Proceedings of the 2018 Asia Pacific International Symposium on Aerospace Technology APISAT 2018

The Proceedings of the 2018 Asia Pacific International Symposium on Aerospace Technology  APISAT 2018  Book
Author : Xinguo Zhang
Publisher : Springer
Release : 2019-06-08
ISBN : 981133305X
Language : En, Es, Fr & De

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Book Description :

This book is a compilation of peer-reviewed papers from the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018). The symposium is a common endeavour between the four national aerospace societies in China, Australia, Korea and Japan, namely, the Chinese Society of Aeronautics and Astronautics (CSAA), Royal Aeronautical Society Australian Division (RAeS Australian Division), the Korean Society for Aeronautical and Space Sciences (KSAS) and the Japan Society for Aeronautical and Space Sciences (JSASS). APISAT is an annual event initiated in 2009 to provide an opportunity for researchers and engineers from Asia-Pacific countries to discuss current and future advanced topics in aeronautical and space engineering.

Tribology of Polymeric Nanocomposites

Tribology of Polymeric Nanocomposites Book
Author : Klaus Friedrich,Alois K. Schlarb
Publisher : Elsevier
Release : 2011-08-30
ISBN : 9780080559087
Language : En, Es, Fr & De

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Book Description :

The area of tribology deals with the design, friction, wear and lubrication of interacting surfaces in relative motion. Polymer nanocomposite materials are increasingly common and offer remarkable improvements in the friction and wear properties of both bulk materials and coatings. This book gives a comprehensive description of polymeric nanocomposites, both as bulk materials and as thin surface coatings, and their behavior and potential use in tribological applications. It provides the preparation techniques, friction and wear mechanisms, properties of polymeric nanocomposites, characterization, evaluation and selection methodology. It also provides various examples of application of polymeric nanocomposites. * Provides a complete reference from the preparation to the selection of polymeric nanocomposites * Explains the theory through examples of real-world applications * More than 20 international tribology experts contribute to their area of expertise

Development of an Ultrasonic Sensing Technique to Measure Lubricant Viscosity in Engine Journal Bearing In Situ

Development of an Ultrasonic Sensing Technique to Measure Lubricant Viscosity in Engine Journal Bearing In Situ Book
Author : Michele Schirru
Publisher : Springer
Release : 2017-02-21
ISBN : 3319534084
Language : En, Es, Fr & De

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Book Description :

This thesis presents a novel ultrasonic instrument for non-invasive and in-situ characterization of journal bearing lubricant viscosity. In particular, the application to journal bearings is described by non-invasively measuring the viscosity and localized power losses throughout operation. This ultrasonic viscometer is based on the reflection of polarized shear waves from a thin resonating coating layer to increase the measurement sensitivity, in comparison to conventional ultrasonic methods. This instrument allows for a full engine oil viscoelastic characterization in-situ. The book investigates the effects of temperature, pressure and shear rate, and describes in detail the ultrasonic setup and method. Further, it demonstrates that the same technique can be applied similarly to monitor the lubrication of other engine components. As such, it offers a unique instrument that can drive the research of oil formulations to improve engine performance and fulfill the requirements of international fuel economy regulations.

Elastohydrodynamic Lubrication for Line and Point Contacts

Elastohydrodynamic Lubrication for Line and Point Contacts Book
Author : Ilya I. Kudish
Publisher : CRC Press
Release : 2013-06-17
ISBN : 1466583908
Language : En, Es, Fr & De

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Book Description :

Elastohydrodynamic Lubrication for Line and Point Contacts: Asymptotic and Numerical Approaches describes a coherent asymptotic approach to the analysis of lubrication problems for heavily loaded line and point contacts. This approach leads to unified asymptotic equations for line and point contacts as well as stable numerical algorithms for the so

Proceedings of Asia International Conference on Tribology 2018

Proceedings of Asia International Conference on Tribology 2018 Book
Author : Mohd Fadzli Bin Abdollah
Publisher : Malaysian Tribology Society
Release : 2018-09-17
ISBN : 9671362524
Language : En, Es, Fr & De

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Book Description :

This ebook is a compilation of 234 papers presented at the 6th Asia International Conference on Tribology (ASIATRIB2018): Kuching, Sarawak - Malaysia from 17 to 20 September 2018.

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.

Recent Advances in Mechanics of Non Newtonian Fluids

Recent Advances in Mechanics of Non Newtonian Fluids Book
Author : Wei-Tao Wu,Mehrdad Massoudi
Publisher : MDPI
Release : 2020-02-21
ISBN : 3039283081
Language : En, Es, Fr & De

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Book Description :

Non-Newtonian (non-linear) fluids are common in nature, for example, in mud and honey, but also in many chemical, biological, food, pharmaceutical, and personal care processing industries. This Special Issue of Fluids is dedicated to the recent advances in the mathematical and physical modeling of non-linear fluids with industrial applications, especially those concerned with CFD studies. These fluids include traditional non-Newtonian fluid models, electro- or magneto-rheological fluids, granular materials, slurries, drilling fluids, polymers, blood and other biofluids, mixtures of fluids and particles, etc.

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.

Rheology and Elastohydrodynamic Lubrication

Rheology and Elastohydrodynamic Lubrication Book
Author : B.O. Jacobson
Publisher : Elsevier
Release : 1991-07-24
ISBN : 9780080875835
Language : En, Es, Fr & De

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Book Description :

This book gives a thorough overview on recent developments in lubricant rheology, elastohydrodynamic lubrication and the effects of surface roughness and particulate contamination in the lubricant on the overall behaviour of a heavily loaded lubricated contact. One of the aims of the book is to make clear to the reader that a Newtonian model for the lubricant behaviour does not have enough degrees of freedom to be able to describe the friction - traction behaviour of heavily loaded lubricated contacts or the oil film build-up and collapse under surface asperities for rough surfaces. The book contains quite a lot of experimental data of lubricants at high pressures, both solidification pressures, compressibilities and shear strength increase coefficients, which make it possible to estimate the friction and power loss in heavily loaded lubricated contacts for different pressures, temperatures, sliding speeds, and lubricant types. This is the first time that data of this type has been included in a textbook and it is hoped that the questions highlighted will serve to initiate and guide future research in this field.

Tribology on the Small Scale

Tribology on the Small Scale Book
Author : C. Mathew Mate,Robert W. Carpick
Publisher : Oxford University Press
Release : 2019-08-30
ISBN : 0192585401
Language : En, Es, Fr & De

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Book Description :

Friction, lubrication, adhesion, and wear are prevalent physical phenomena in everyday life and in many key technologies. This book incorporates a bottom-up approach to friction, lubrication, and wear into a versatile textbook on tribology. This is done by focusing on how these tribological phenomena occur on the small scale — the atomic to the micrometer scale — a field often called nanotribology. The book covers the microscopic origins of the common tribological concepts of roughness, elasticity, plasticity, friction coefficients, and wear coefficients. Some macroscale concepts (like elasticity) scale down well to the micro- and atomic-scale, while other macroscale concepts (like hydrodynamic lubrication) do not. In addition, this book also has chapters on topics not typically found in tribology texts: surface energy, surface forces, lubrication in confined spaces, and the atomistic origins of friction and wear. These chapters cover tribological concepts that become increasingly important at the small scale: capillary condensation, disjoining pressure, contact electrification, molecular slippage at interfaces, atomic scale stick-slip, and atomic bond breaking. Throughout the book, numerous examples are provided that show how a nanoscale understanding of tribological phenomena is essential to the proper engineering of important modern technologies such as MEMS, disk drives, and nanoimprinting. For the second edition, all the chapters have been revised and updated to incorporate the most recent advancements in nanoscale tribology. Another important enhancement to the second edition is the addition of problem sets at the end of each chapter.

Applied Mechanics Reviews

Applied Mechanics Reviews Book
Author : Anonim
Publisher : Unknown
Release : 1988
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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

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.

Journal of Lubrication Technology

Journal of Lubrication Technology Book
Author : Anonim
Publisher : Unknown
Release : 1977
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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