Elasto-Hydrodynamic Lubrication

Elasto-Hydrodynamic Lubrication
Author: D. Dowson
Publisher: Elsevier
Total Pages: 254
Release: 2014-07-18
Genre: Technology & Engineering
ISBN: 1483181898

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.

Biotribology of Natural and Artificial Joints

Biotribology of Natural and Artificial Joints
Author: Teruo Murakami
Publisher: Elsevier
Total Pages: 310
Release: 2022-11-23
Genre: Technology & Engineering
ISBN: 0128236701

Biotribology of Natural and Artificial Joints: Reducing Wear Through Material Selection and Geometric Design with Actual Lubrication Mode provides a thorough overview of key issues surrounding the tribological behaviors of both natural and artificial joints, covering methods for optimizing the properties of biomaterials, summarizing the lubrication and contact mechanics of natural and artificial joints, and offering solutions to tribological problems in soft biomaterials and surface failures of materials. Sections cover biomechanics and biotribology of natural and artificial joints, articular cartilage and synovial fluids, methods for improving the tribological properties of artificial joints, and the biotribology of artificial joints with artificial cartilage, regenerated cartilage, and biomimetic design solutions. - Provides insights on how to optimize the performance of artificial joints via friction reduction, better material selection and improved geometric design - Looks at the effects of rubbing and loading on tissue regeneration with chondrocytes - Discusses lubrication and contact mechanisms for reducing friction and wear in artificial and natural joints - Outlines artificial joint design considerations for achieving low wear

Biotribology

Biotribology
Author: T V V L N Rao
Publisher: CRC Press
Total Pages: 284
Release: 2021-10-03
Genre: Technology & Engineering
ISBN: 1000457702

Biotribology includes tribological phenomena of natural and implant surface interactions under relative motion in the human body. Biotribology: Emerging Technologies and Applications disseminates ideas and research trends in biotribology and presents pioneering recent research advances impacting the field, focusing on the roles of mathematics, chemistry, physics, materials, and mechanical engineering. Discusses lubrication of joint replacements, computational modeling of biotribology and multibody biomechanical models Describes metal-organic frameworks, medical friction pairs, and electrochemical techniques to tribocorrosion tests Covers state of the art and future technological developments and applications, as well as challenges and opportunities Biotribology is an important and growing field, and the topics covered in this book will be of great interest to the international tribology community, appealing to readers working in the fields of materials science, biomedical engineering, biotechnology, mechanical engineering, and related areas.

Elastohydrodynamics - '96

Elastohydrodynamics - '96
Author: C. Taylor
Publisher: Elsevier
Total Pages: 773
Release: 1997-07-22
Genre: Technology & Engineering
ISBN: 0080875963

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.

Fundamentals of Fluid Film Lubrication

Fundamentals of Fluid Film Lubrication
Author: Mihir Kumar Ghosh
Publisher: McGraw Hill Professional
Total Pages: 497
Release: 2014-06-20
Genre: Technology & Engineering
ISBN: 0071834982

Comprehensive coverage of fluid film lubrication Written by global experts in the field, this in-depth engineering resource discusses the theory, design, analysis, and application of fluid film lubrication, providing proven methods for reducing friction in rotating machinery components. The book thoroughly addresses all aspects of the topic, from viscosity and rotor-bearing dynamics to elastohydrodynamic lubrication and fluid inertia effects. Fully worked examples, analytical and numerical methods of solutions, practice problems, and detailed illustrations are included in this authoritative reference. Fundamentals of Fluid Film Lubrication covers: Introduction to tribology Viscosity and rheology of lubricants Mechanics of lubricant films and basic equations Hydrodynamic lubrication Finite bearings Thermohydrodynamic analysis of fluid film bearings Design of hydrodynamic bearings Dynamics of fluid film bearings Externally pressurized lubrication Fluid inertia effects and turbulence in fluid film lubrication Gas-lubricated bearings Hydrodynamic lubrication of rolling contacts Elastohydrodynamic lubrication Vibration analysis with lubricated ball bearings Thermal effect in rolling–sliding contacts

Fluid Film Lubrication

Fluid Film Lubrication
Author: Andras Z. Szeri
Publisher: Cambridge University Press
Total Pages: 565
Release: 2010-12-27
Genre: Science
ISBN: 1139495194

Fluid film bearings are machine elements that should be studied within the broader context of tribology. The three subfields of tribology - friction, lubrication, and wear - are strongly interrelated. The last decade has witnessed significant advances in the area of fluid film lubrication and its applications, and this second edition offers a look at some of these advances. This edition adds to the fundamentals of fluid film lubrication, a discourse on surface effects and the inclusion of treatment of flow with significant inertia within the section on turbulence. Basic ideas of the multigrid method are conveyed along with multilevel multi-integration in the treatment of elastohydrodynamic lubrication. New chapters have been included on ultra-thin films, both liquid and gaseous, and lubrication of articulating joints and their replacement. Some of the most recent literature is discussed.

Biobased Lubricants and Greases

Biobased Lubricants and Greases
Author: Lou Honary
Publisher: John Wiley & Sons
Total Pages: 215
Release: 2011-06-28
Genre: Technology & Engineering
ISBN: 1119956366

Due to the rise in petroleum prices as well as increasing environmental concerns, there is a need to develop biochemicals and bioproducts that offer realistic alternatives to their traditional counterparts; this book will address the lack of a centralized resource of information on lubricants and greases from renewable sources, and will be useful to a wide audience in industry and academia. It is based on 20 years of research and development at the UNI-NABL Center, and discusses the various types of vegetable oils available, comparing their characteristics, properties and benefits against those of typical petroleum oils as well as discussing common evaluation tests and giving examples and case studies of successful applications of biobased lubricants and greases. Whilst scientific and engineering research data is included, the book is written in an accessible manner and is illustrated throughout. Focuses on an industrial application of lubrication technology undergoing current explosive growth in the global market. Includes a detailed review of the material benefits of plant-based lubricants that include a better viscosity index and lubricity even at extreme temperatures, lower flammability due to higher flash points and lower pour points. Covers the basic chemistry of vegetable oils as well as their profiles for use in lubricants and greases and environmental benefits. Includes examples and case studies of where vegetable-based lubricants have been successfully employed in industry applications.

Synthetics, Mineral Oils, and Bio-Based Lubricants

Synthetics, Mineral Oils, and Bio-Based Lubricants
Author: Leslie R. Rudnick
Publisher: CRC Press
Total Pages: 1195
Release: 2020-01-29
Genre: Science
ISBN: 1351655744

Highlighting the major economic and industrial changes in the lubrication industry since the first edition, Synthetics, Mineral Oils, and Bio-Based Lubricants: Chemistry and Technology, Third Edition highlights the major economic and industrial changes in the lubrication industry and outlines the state of the art in each major lubricant application area. Chapters cover the use of lubricant fluids, growth or decline of market areas and applications, potential new applications, production capacities, and regulatory issues, including biodegradability, toxicity, and food production equipment lubrication. The highly-anticipated third edition features new and updated chapters including those on automatic and continuously variable transmission fluids, fluids for food-grade applications, oil-soluble polyalkylene glycols, functional bio-based lubricant base stocks, farnesene-derived polyolefins, estolides, bio-based lubricants from soybean oil, and trends in construction equipment lubrication. Features include: Contains an index of terms, acronyms, and analytical testing methods. Presents the latest conventions for describing upgraded mineral oil base fluids. Considers all the major lubrication areas: engine oils, industrial lubricants, food-grade applications, greases, and space-age applications Includes individual chapters on lubricant applications—such as environmentally friendly, disk drive, and magnetizable fluids—for major market areas around the globe. In a single, unique volume, Synthetics, Mineral Oils, and Bio-Based Lubricants: Chemistry and Technology, Third Edition offers property and performance information of fluids, theoretical and practical background to their current applications, and strong indicators for global market trends that will influence the industry for years to come.