Fundamentals of tribology and bridging the gap between the macro- and micro/nanoscales : [abstracts ; NATO Advanced Study Institute (ASI), August 13 - August 25, 2000, Keszthely, Hungary,] PDF Download
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Author: Bharat Bhushan
Publisher:
ISBN: 9789630040778
Category :
Languages : en
Pages : 110
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Book Description
![Fundamentals of tribology and bridging the gap between the macro- and micro/nanoscales : [abstracts ; NATO Advanced Study Institute (ASI), August 13 - August 25, 2000, Keszthely, Hungary,] PDF](https://books.google.com/books/content/images/frontcover/I1zTsgEACAAJ?fife=w80-h100)
Author: Bharat Bhushan
Publisher:
ISBN: 9789630040778
Category :
Languages : en
Pages : 110
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Book Description
Author: Bharat Bhushan
Publisher: Springer Science & Business Media
ISBN: 9401007365
Category : Science
Languages : en
Pages : 961
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Book Description
The word tribology was fIrst reported in a landmark report by P. Jost in 1966 (Lubrication (Tribology)--A Report on the Present Position and Industry's Needs, Department of Education and Science, HMSO, London). Tribology is the science and technology of two interacting surfaces in relative motion and of related subjects and practices. The popular equivalent is friction, wear and lubrication. The economic impact of the better understanding of tribology of two interacting surfaces in relative motion is known to be immense. Losses resulting from ignorance of tribology amount in the United States alone to about 6 percent of its GNP or about $200 billion dollars per year (1966), and approximately one-third of the world's energy resources in present' use, appear as friction in one form or another. A fundamental understanding of the tribology of the head-medium interface in magnetic recording is crucial to the future growth of the $100 billion per year information storage industry. In the emerging microelectromechanical systems (MEMS) industry, tribology is also recognized as a limiting technology. The advent of new scanning probe microscopy (SPM) techniques (starting with the invention of the scanning tunneling microscope in 1981) to measure surface topography, adhesion, friction, wear, lubricant-fIlm thickness, mechanical properties all on a micro to nanometer scale, and to image lubricant molecules and the availability of supercomputers to conduct atomic-scale simulations has led to the development of a new fIeld referred to as Microtribology, Nanotribology, or Molecular Tribology (see B. Bhushan, J. N. Israelachvili and U.
Author: Ramsey Gohar
Publisher: World Scientific
ISBN: 1786345196
Category : Technology & Engineering
Languages : en
Pages : 519
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Book Description
Fundamentals of Tribology deals with the fundamentals of lubrication, friction and wear, as well as mechanics of contacting surfaces and their topography. It begins by introducing the reader to the importance of tribology in everyday life and offers a brief history of the subject. It then describes the nature of rough surfaces and the mechanics of contacting elastic solids and their deformation under load and friction in their relative motion. The book goes on to discuss the importance of lubricant rheology with respect to viscosity and density. Then, the principles of hydrodynamic lubrication are covered with derivations of the governing Reynolds and energy equations. Applications of hydrodynamic lubrication in various forms of bearings — journal bearings, thrust bearings and externally pressurised bearings — are outlined. The important and still evolving subject of elastohydrodynamic lubrication is treated in some detail, both at its fundamentals and its applications in thin shell or overlay bearings, cam-followers and internal combustion engine pistons.The fundamentals of biotribology are also covered, particularly its applications to endo-articular mammalian joints such as hip and knee joints and their arthroplasty. In addition, there is a treatment of the rapidly emerging knowledge of tribological phenomena in lightly loaded vanishing conjunctions (nanotribology), in natural systems and very small devices, such as MEMS and high density data storage media. There is also a new chapter on the rapidly emerging subject of surface texturing to promote retention of microreservoirs of lubricant, acting as microbearings and improving lubrication of otherwise poorly lubricated conjunctions.This book targets the undergraduate and postgraduate body as well as engineering professionals in industry, where often a quick solution or understanding of certain tribological fundamentals is sought. The book can also form an initial basis for those interested in research into certain aspects of tribology.
Author: Nam P. Suh
Publisher: MIT Press (MA)
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 1240
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Book Description
This volume provides an overview of tribology and a forum for diverse views on this crucial subject.
Author: Bahman Azarhoushang
Publisher: William Andrew
ISBN: 0128237783
Category : Technology & Engineering
Languages : en
Pages : 772
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Book Description
This new edition draws upon the fundamentals of abrasive machining processes and the science of tribology to understand, predict, and improve abrasive machining processes. Each of the main elements of the abrasive machining system is looked at alongside the tribological factors that control the efficiency and quality of the processes described. The new edition has been updated to include a variety of industrial applications. Grinding and conditioning of grinding tools are dealt with in particular detail, and solutions are proposed for many of the most commonly experienced industrial problems, such as poor accuracy, poor surface quality, rapid tool wear, vibrations, workpiece burn, and high process costs. The entire book has been rewritten and restructured, with ten completely new chapters. Other new features include: - Extensive explanations of the main abrasive machining processes such as grinding (including reciprocating and creep-feed grinding, high-speed high-efficiency deep grinding, external and internal cylindrical grinding, and centerless grinding), honing, superfinishing, lapping, polishing, and finishing - Discussions of the new classes of abrasives, abrasive tools, and bonding materials - New case studies and troubleshooting on the most common grinding practices - New coverage on grinding tool conditioning, mechanical dressing, and nonmechanical dressing processes - Detailed explanations of the effects of process input parameters (such as cutting parameters, workpiece material and geometry, and abrasive tools) on process characteristics, workpiece quality, tool wear, and process parameters (such as cutting forces and temperature as well as achievable material removal rate) - Updated topics regarding process fluids for abrasive machining and fluid delivery
Author: N. P. Suh
Publisher:
ISBN:
Category :
Languages : en
Pages : 1206
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Book Description
Author: Harish Hirani
Publisher: Cambridge University Press
ISBN: 1107063876
Category : Science
Languages : en
Pages : 464
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Book Description
"Presents explanation on the theories and applications of hydrodynamic thrust bearing, gas (air) lubricated bearing and elasto-hydrodynamic lubrication"--
Author: P.B. Senholzi
Publisher: Springer
ISBN: 9789401198073
Category : Science
Languages : en
Pages : 0
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Book Description
Peter B. Senholzi Manager, Applications Engineering Mechanical Technology Incorporated In most discussions concerning tribology, authors felt compelled to introduce the topic by first defining the term. In this discussion, however, the term will not be defined until after the circumstances that spawned its existence have been summarized. This discussion will revolve around two facets of mechanical system design, that of structural integrity and wear integrity. In the not too distant past, the evolutionary process of machine design had in most cases attained a stage of development where the structural integrity of a system was ensured. Simply stated, this means that the machine components would not "break. " However, at this development phase, little emphasis was placed on component wear integrity. This meant that although machinery components would not break, they would be subject to high wear/wear-out rates. Frequent component replacements were used in order to compensate for this situation. A "throw away" philosophy was thus adopted. This philosophy, however, resulted in many undesirable secondary effects. Mechanical systems were characterized by expensive logistics, costly maintenance, limited availability, limited lives, and substantial energy consumption. This energy consumption resulted from primary effects of high equipment frictional levels {causing the high wear rate) and such secondary effects as spare parts production and transportation. As a result of these factors, the "throw-away" philosophy was a very vulnerable luxury. During the last fifteen or so years, environmental factors with respect to mechanical system operation have changed 2 drastically.
Author: Jürgen Gegner
Publisher: BoD – Books on Demand
ISBN: 9535111353
Category : Technology & Engineering
Languages : en
Pages : 334
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Book Description
As the subject of tribology comprises lubrication, friction and wear of contact components highly relevant to practical applications, it challenges scientists from chemistry, physics and materials engineering around the world on todays sophisticated experimental and theoretical foundation to complex interdisciplinary research. Recent results and developments are preferably presented and evaluated in the context of established knowledge. Consisting of eleven chapters divided into the four parts of Lubrication and Properties of Lubricants, Boundary Lubrication Applications, Testing and Modeling, and Sustainability of Tribosystems, this textbook therefore merges basic concepts with new findings and approaches. Tribology Fundamentals and Advancements, supported by competent authors, aims to convey current research trends in the light of the state of the art to students, scientists and practitioners and help them solve their problems.
Author: Ahmed Abdelbary
Publisher: CRC Press
ISBN: 0429828977
Category : Science
Languages : en
Pages : 374
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Book Description
Tribology is an unfamiliar term for many, but is experienced by all. It is the science of friction, wear and lubrication of contacting surfaces in relative motion. The aim of this book is to introduce the fundamentals of tribology as well as its challenges in extreme operating conditions. The book comprises a historical background and an introduction to familiarize both undergraduate and postgraduate readers with such an important topic. It addresses a comprehensive coverage of classical tribology of solid contacts, friction mechanics, wear mechanisms and lubrication technologies. The tribology of polymer composites, MEMS and NEMS are explored. In addition, tribology of automotive components is presented, as are tribological applications in many practical situations.Various test methods used in evaluating wear are reviewed. Diverse techniques applied in predicting wear behavior by mathematical models, FE modeling and ANN approach are discussed. The book reviews key features of extraordinary conditions associated with, but not limited to, harsh environments, severe sliding and poor lubrication challenges. A basic understanding of failure modes in tribological systems is covered. The state-of-the-art research on tribology under these extreme conditions is extensively discussed, which will be of interest to researchers. The book highlights solutions for extreme tribology problems and provides an overview of various factors affecting tribosystems in harsh conditions.
