Physics of Sliding Friction

Physics of Sliding Friction
Available:
Author: Bo N.J. Persson,E. Tosatti
Pages: 460
ISBN: 9789401587051
Release: 2013-04-17
Editor: Springer Science & Business Media

DESCRIPTION OF THE BOOK:

The study of sliding friction is one of the oldest problems in physics, and certainly one of the most important from a practical point of view. Low-friction surfaces are in increasingly high demand for high-tech components such as computer storage systems, miniature motors, and aerospace devices. It has been estimated that about 5% of the gross national product in the developed countries is "wasted" on friction and the related wear. In spite of this, remarkable little is understood about the fundamental, microscopic processes responsible for friction and wear. The topic of interfacial sliding has experienced a major burst of in terest and activity since 1987, much of which has developed quite independently and spontaneously. This volume contains contributions from leading scientists on fundamental aspects of sliding friction. Some problems considered are: What is the origin of stick-and-slip motion? What is the origin of the rapid processes taking place within a lub at low sliding velocities? On a metallic surface, is the rication layer electronic or phononic friction the dominating energy dissipation pro cess? What is the role (if any) of self-organized criticality in sliding friction? How thick is the water layer during sliding on ice and snow? These and other questions raised in this book are of course only part ly answered: the topic of sliding friction is still in an early state of development.

Friction

Friction
Available:
Author: Anna Lowenhaupt Tsing
Pages: 344
ISBN: 9781400830596
Release: 2011-10-23
Editor: Princeton University Press

DESCRIPTION OF THE BOOK:

A wheel turns because of its encounter with the surface of the road; spinning in the air it goes nowhere. Rubbing two sticks together produces heat and light; one stick alone is just a stick. In both cases, it is friction that produces movement, action, effect. Challenging the widespread view that globalization invariably signifies a "clash" of cultures, anthropologist Anna Tsing here develops friction in its place as a metaphor for the diverse and conflicting social interactions that make up our contemporary world. She focuses on one particular "zone of awkward engagement"--the rainforests of Indonesia--where in the 1980s and the 1990s capitalist interests increasingly reshaped the landscape not so much through corporate design as through awkward chains of legal and illegal entrepreneurs that wrested the land from previous claimants, creating resources for distant markets. In response, environmental movements arose to defend the rainforests and the communities of people who live in them. Not confined to a village, a province, or a nation, the social drama of the Indonesian rainforest includes local and national environmentalists, international science, North American investors, advocates for Brazilian rubber tappers, UN funding agencies, mountaineers, village elders, and urban students, among others--all combining in unpredictable, messy misunderstandings, but misunderstandings that sometimes work out. Providing a portfolio of methods to study global interconnections, Tsing shows how curious and creative cultural differences are in the grip of worldly encounter, and how much is overlooked in contemporary theories of the global.

Friction and Instabilities

Friction and Instabilities
Available:
Author: J.A.C. Martinis,M. Raous
Pages: 291
ISBN: 3211836950
Release: 2002-11-11
Editor: Springer Science & Business Media

DESCRIPTION OF THE BOOK:

The book addresses instability and bifurcation phenomena in frictional contact problems. The treatment of this subject has its roots in previous studies of instability and bifurcation in elastic, thermoelastic or elastic-plastic bodies, and in previous mathematical, mechanical and computational studies of unilateral problems. The salient feature of this book is to put together and develop concepts and tools for stability and bifurcation studies in mechanics, taking into account the inherent non-smoothness and non-associativity (non-symmetry) of unilateral frictional contact laws. The mechanical foundations, the mathematical theory and the computational algorithms for such studies are developed along six chapters written by the lecturers of a CISM course. Those concepts and tools are illustrated not only with enlightening academic examples but also with some demanding industrial applications, related, namely, to the automotive industry.

Friction

Friction
Available:
Author: Sandra Brown
Pages: 300
ISBN: 9781455581177
Release: 2015-08-18
Editor: Grand Central Publishing

DESCRIPTION OF THE BOOK:

From #1 New York Times bestselling author Sandra Brown comes a gripping story of family ties and forbidden attraction. Crawford Hunt wants his daughter back. Following the death of his wife four years ago, Crawford, a Texas Ranger, fell into a downward spiral that left him relegated to deskwork and with his five-year-old daughter Georgia in the custody of her grandparents. But Crawford has cleaned up his act, met all the court imposed requirements, and now the fate of his family lies with Judge Holly Spencer. Holly, ambitious and confident, temporarily occupies the bench of her recently deceased mentor. With an election upcoming, she must prove herself worthy of making her judgeship permanent. Every decision is high-stakes. Despite Crawford's obvious love for his child and his commitment to being an ideal parent, Holly is wary of his checkered past. Her opinion of him is radically changed when a masked gunman barges into the courtroom during the custody hearing. Crawford reacts instinctually, saving Holly from a bullet. But his heroism soon takes on the taint of recklessness. The cloud over him grows even darker after he uncovers a horrifying truth about the courtroom gunman and realizes that the unknown person behind the shooting remains at large . . .and a threat. Catching the real culprit becomes a personal fight for Crawford. But pursuing the killer in his customary diehard fashion will jeopardize his chances of gaining custody of his daughter, and further compromise Judge Holly Spencer, who needs protection not only from an assassin, but from Crawford himself and the forbidden attraction between them. FRICTION will keep you on the edge of your seat with breathtaking plot twists and the unforgettable characters that make Sandra Brown one of the world's best-loved authors. It is an extraordinary novel about the powerful ties that bind us to the ones we love and the secrets we keep to protect them.

Dynamics of Mechanical Systems with Coulomb Friction

Dynamics of Mechanical Systems with Coulomb Friction
Available:
Author: Le Xuan Anh
Pages: 269
ISBN: 3540006540
Release: 2003-04-23
Editor: Springer Science & Business Media

DESCRIPTION OF THE BOOK:

This book addresses the general theory of motion of mechanical systems with Coulomb friction. In particular, the book focuses on the following specific problems: i) derivation of the equations of motion, ii) Painleve's paradoxes, iii) tangential impact and dynamic seizure, and iiii) frictional self-excited oscillations. In addition to theoretical results, the book contains a detailed description of experiments that have been performed. These show that, in general, the friction force at the instant of transition to motion is determined by the rate of tangential load and does not depend on the duration of the previous contact. These results are used to develop the theory of frictional self-excited oscillations. A number of industrially relevant mechanisms are considered, including the Painleve-Klein scheme, epicyclic mechanisms, crank mechanisms, gear transmission, the link mechanism of a planing machine, and the slider of metal-cutting machine tools. The book is intended for researchers, engineers and students in mechanical engineering.

What Is Friction

What Is Friction
Available:
Author: Lisa Idzikowski
Pages: 32
ISBN: 9781622755035
Release: 2014-07-15
Editor: Encyclopaedia Britannica

DESCRIPTION OF THE BOOK:

Readers are introduced to friction, its characteristics, and how it works in the world around us. The author shows how this physical force operates and how it can work to both our advantage and disadvantage. Readers will to learn the role friction plays in nature, in sports, in transportation, and many other domains.

Friction Science and Technology

Friction Science and Technology
Available:
Author: Peter J. Blau
Pages: 416
ISBN: 0824795768
Release: 1995-10-12
Editor: CRC Press

DESCRIPTION OF THE BOOK:

This work offers a multidisciplinary approach to static and kinetic friction, both with and without lubrication, and reviews the conventional and novel methods used to measure friction. The elementary problems found in the mechanics of sliding objects and machine components, and the effects of contact pressure, sliding speed, surface roughness, humidity and temperature on friction, are discussed.;College or university bookstores may order five or more copies at a special student price, available upon request.

Friction

Friction
Available:
Author: Sandra Brown
Pages: 370
ISBN: 1455581194
Release: 2016-07-26
Editor: Grand Central Publishing

DESCRIPTION OF THE BOOK:

From #1 New York Times bestselling author Sandra Brown comes a gripping story of family ties and forbidden attraction. Crawford Hunt wants his daughter back. Following the death of his wife four years ago, Crawford, a Texas Ranger, fell into a downward spiral that left him relegated to deskwork and with his five-year-old daughter Georgia in the custody of her grandparents. But Crawford has cleaned up his act, met all the court imposed requirements, and now the fate of his family lies with Judge Holly Spencer. Holly, ambitious and confident, temporarily occupies the bench of her recently deceased mentor. With an election upcoming, she must prove herself worthy of making her judgeship permanent. Every decision is high-stakes. Despite Crawford's obvious love for his child and his commitment to being an ideal parent, Holly is wary of his checkered past. Her opinion of him is radically changed when a masked gunman barges into the courtroom during the custody hearing. Crawford reacts instinctually, saving Holly from a bullet. But his heroism soon takes on the taint of recklessness. The cloud over him grows even darker after he uncovers a horrifying truth about the courtroom gunman and realizes that the unknown person behind the shooting remains at large . . .and a threat. Catching the real culprit becomes a personal fight for Crawford. But pursuing the killer in his customary diehard fashion will jeopardize his chances of gaining custody of his daughter, and further compromise Judge Holly Spencer, who needs protection not only from an assassin, but from Crawford himself and the forbidden attraction between them. FRICTION will keep you on the edge of your seat with breathtaking plot twists and the unforgettable characters that make Sandra Brown one of the world's best-loved authors. It is an extraordinary novel about the powerful ties that bind us to the ones we love and the secrets we keep to protect them.

FRICTION The Untapped Force That Can Be Your Most Powerful Advantage

FRICTION   The Untapped Force That Can Be Your Most Powerful Advantage
Available:
Author: Roger Dooley
Pages: 320
ISBN: 9781260135701
Release: 2019-05-17
Editor: McGraw Hill Professional

DESCRIPTION OF THE BOOK:

In 2016, $4.6 trillion of merchandise was left in abandoned e-commerce shopping carts. Every year, the U.S. economy loses $3 trillion dollars in productivity due to excess bureaucracy. Red tape and over-complicated licenses have contributed to China’s GDP exceeding India’s by $82 trillion over the span of just three decades. If you’re a business leader, these statistics should give you nightmares. According to science-based marketing and business expert Roger Dooley, they illustrate the real and growing threat of “friction,” which he defines as the unnecessary expenditure of time, effort, or money in performing a task. In today's high-speed, customer-empowered world, the levels of swiftness and efficiency of business transactions will determine ultimate success or failure. In this groundbreaking guide, Dooley helps you spot the inevitable points of friction in your organization, and he provides the tools and insight you need to eliminate them. By truly understanding the impact friction can have, you’ll be able to establish positive habits and eliminate negative ones—all with the end result of building a company that’s the envy of your industry. Friction takes you step-by-step through the process of: •Empowering frank conversations•Guiding individual and team behaviors•Getting ahead of friction •Optimizing the customer experience •Building a frictionless corporate culture Combining scientific research with real-life examples of leaders who have conquered business friction, Dooley teaches you how to identify roadblocks, alter them for the benefit of both business and customer, and create positive, lasting change. If you’re in a leadership position, now is the time to declare war on friction—before your competitors do. Stamp out ridiculous rules, pointless procedures, and meaningless meetings. Become a relentless advocate for the customer and for minimizing customer effort. Lubricate every point of friction and make your company run like a well-oiled machine. Friction provides the know-how you need to lead your company to industry dominance.

Dynamics and Control of Robotic Manipulators with Contact and Friction

Dynamics and Control of Robotic Manipulators with Contact and Friction
Available:
Author: Shiping Liu,Gang S. Chen
Pages: 400
ISBN: 9781119422488
Release: 2019-01-29
Editor: Wiley

DESCRIPTION OF THE BOOK:

A comprehensive guide to the friction, contact and impact on robot control and force feedback mechanism Dynamics and Control of Robotic Manipulators with Contact and Friction offers an authoritative guide to the basic principles of robot dynamics and control with a focus on contact and friction. The authors discuss problems in interaction between human and real or virtual robot where dynamics with friction and contact are relevant. The book fills a void in the literature with a need for a text that considers the contact and friction generated in robot joints during their movements. Designed as a practical resource, the text provides the information needed for task planning in view of contact, impact and friction for the designer of a robot control system for high accuracy and long durability. The authors include a review of the most up-to-date advancements in robot dynamics and control. It contains a comprehensive resource to the effective design and fabrication of robot systems and components for engineering and scientific purposes. This important guide: Offers a comprehensive reference with systematic treatment and a unified framework Includes simulation and experiments used in dynamics and control of robot considering contact, impact and friction Discusses the most current tribology methodology used to treat the multiple–scale effects Contains valuable descriptions of experiments and software used Presents illustrative accounts on the methods employed to handle friction in the closed loop, including the principles, implementation, application scope, merits and demerits Offers a cohesive treatment that covers tribology and multi-scales, multi-physics and nonlinear stochastic dynamics control Written for graduate students of robotics, mechatronics, mechanical engineering, tracking control and practicing professionals and industrial researchers, Dynamics and Control of Robotic Manipulators with Contact and Friction offers a review to effective design and fabrication of stable and durable robot system and components.

Sliding Friction

Sliding Friction
Available:
Author: Bo N.J. Persson
Pages: 463
ISBN: 9783662036464
Release: 2013-03-14
Editor: Springer Science & Business Media

DESCRIPTION OF THE BOOK:

Sliding friction is one of the oldest problems in physics and certainly one of the most important from a practical point of view. The ability to produce durable low-friction surfaces and lubricant fluids has become an important factor in the miniaturization of moving components in many technological devices, e.g., magnetic storage, recording systems, miniature motors and many aerospace components. This book will be useful to physicists, chemists, materials scientists, and engineers who want to understand sliding friction. The book (or parts of it) could also form the basis for a modern undergraduate or graduate course on tribology.

Micromechanisms of Friction and Wear

Micromechanisms of Friction and Wear
Available:
Author: Dmitrij Lyubimov,Kirill Dolgopolov,Leonid Pinchuk
Pages: 219
ISBN: 9783642351488
Release: 2013-02-01
Editor: Springer Science & Business Media

DESCRIPTION OF THE BOOK:

The modern vision of the micromechanism of friction and wear is explored, from the examination of ideal and real crystal structure and adhesion properties to the dynamics of solid frictional interaction. The fundamental quantum-mechanical and relativity principles of particle interaction are considered as basis of friction micro-process examination. The changes in solid structure originated from the influence of different kinds of force fields are considered. The principal possibility of relativity effect manifestation by friction is explained. The critical state of friction – triboplasma – was studied. Structural peculiarities of triboplasma, the kinetics of its transformation during frictional interaction as well as the influence of plasma and postplasma processes on tribojunction friction characteristics and complex formation by friction were examined. The book addresses to tribology researchers.

Friction and Wear in Polymer Based Materials

Friction and Wear in Polymer Based Materials
Available:
Author: V. A. Bely,A. I. Sviridenok,M. I. Petrokovets
Pages: 426
ISBN: 9781483152059
Release: 2013-10-22
Editor: Elsevier

DESCRIPTION OF THE BOOK:

Friction and Wear in Polymer-Based Materials discusses friction and wear problems in polymer-based materials. The book is organized into three parts. The chapters in Part I cover the basic laws of friction and wear in polymer-based materials. Topics covered include frictional interaction during metal-polymer contact and the influence of operating conditions on wear in polymers. The chapters in Part II discuss the structure and frictional properties of polymer-based materials; the mechanism of frictional transfer when a polymer comes into contact with polymers, metals, and other materials; and controlling the frictional properties of polymer materials. Part III is devoted to applications of polymer-based materials in friction assemblies. It covers composite self-lubricating materials and polymer materials for complexly loaded main friction assemblies. This work may prove useful to specialists interested in the problems of using polymer materials. It also aims to stimulate deeper research into the field of friction and wear in polymer-based materials.

Friction in Textile Materials

Friction in Textile Materials
Available:
Author: B S Gupta
Pages: 488
ISBN: 9781845694722
Release: 2008-06-02
Editor: Elsevier

DESCRIPTION OF THE BOOK:

Friction is a major issue in both the production of textiles and in the finished product. This authoritative book reviews how friction occurs and the ways it can be measured and controlled. The book begins by looking at how friction can be defined and how the structure and properties of textile fibres lead to friction behaviour. It also discusses slip-stick phenomena in textiles and ways of measuring friction in yarns and fabric. The second part of the book reviews friction in particular textiles, including cotton, wool and synthetic fibres as well as woven fabrics. These and other chapters also discuss ways of controlling friction, including fabric finishes and lubricants. With its distinguished editor and contributions from some of the world’s leading authorities in the subject, Friction in textile materials is a standard reference for the textile industry and those researching this important topic. An authoritative review of friction, its management and control

Dynamics with Friction Modeling Analysis and Experiment

Dynamics with Friction  Modeling  Analysis and Experiment
Available:
Author: Ard'shir Guran,Friedrich Pfeiffer,Karl Popp
Pages: 264
ISBN: 9789814498906
Release: 1996-08-23
Editor: World Scientific

DESCRIPTION OF THE BOOK:

The dynamics of dissipative mechanical and structural systems is being investigated at various institutions and laboratories worldwide with ever-increasing sophistication of modeling, analysis and experiments. This book offers a collection of contributions from these research centers that represent the state-of-the-art in the study of friction oscillators. It provides the reader with the fruits of a team effort by leaders in this fascinating field. The topics covered include friction modeling, self-excited friction oscillators, homogeneous frictional systems, unsteady lubricated friction, instantaneous contact geometry, impact damping, friction-induced instability and nonlinear dynamics of stick-slip systems, among other topics. This book gives a comprehensive picture of dynamics of dissipative mechanical and structural systems. It also gives an up-to-date account of the present state of the field. It will be of interest to engineers, rheologists, material scientists, applied mathematicians, physicists and historians of science and technology. Contents:Analysis of a Self-Excited Friction Oscillator with External Excitation (K Popp et al.)The Nonlinear Dynamics of Oscillators with Stick-Slip Friction (B Feeny)Dynamics of Homogeneous Frictional Systems (J Inaudi & J Kelly)Friction and Impact Damping in a Truss Using Pinned Joints (S Folkman et al.)Design of a Friction Damper to Control Vibration of Turbine Blades (J-H Wang)Modeling Unsteady Lubricated Friction (A Polycarpou & A Soom) Readership: Engineers, rheologists, materials scientists, applied mathematicians, physicists and historians of science and technology. keywords:

Numerics of Unilateral Contacts and Friction

Numerics of Unilateral Contacts and Friction
Available:
Author: Christian Studer
Pages: 182
ISBN: 9783642011009
Release: 2009-05-06
Editor: Springer Science & Business Media

DESCRIPTION OF THE BOOK:

Mechanics provides the link between mathematics and practical engineering app- cations. It is one of the oldest sciences, and many famous scientists have left and will leave their mark in this fascinating ?eld of research. Perhaps one of the most prominentscientists in mechanics was Sir Isaac Newton, who with his “laws of - tion” initiated the description of mechanical systems by differential equations. And still today, more than 300 years after Newton, this mathematical concept is more actual than ever. The rising computer power and the development of numerical solvers for diff- ential equations allowed engineersall over the world to predict the behavior of their physical systems fast and easy in an numerical way. And the trend to computational simulation methods is still further increasing, not only in mechanics, but practically in all branches of science. Numerical simulation will probablynot solve the world’s engineering problems, but it will help for a better understanding of the mechanisms of our models.

Friction and the Hot Rolling of Steel

Friction and the Hot Rolling of Steel
Available:
Author: Vladimir Panjkovic
Pages: 239
ISBN: 9781482205893
Release: 2014-02-25
Editor: CRC Press

DESCRIPTION OF THE BOOK:

When it comes to metal rolling, understanding and controlling frictional phenomena is essential to improving product and developing a more effective approach to friction reduction. Providing a historical perspective that goes as far back as the days of Leonardo da Vinci and continues up until the present day, Friction and the Hot Rolling of Steel chronicles the fundamental causes of friction. This book includes well-documented, on-site observations in various commercial plants, presents and examines practical problems, and provides a critical analysis of literary data related to the subject. It explains the base mechanisms of friction, and offers insight and instruction on improving the control and understanding of friction in hot strip mills and other industrial plants. The text presents mathematical models of friction in control and general engineering in a way that enables engineers to test and refine them in their plants. Engineers have the ability to use them to control friction and minimize its negative effects, particularly as it relates to energy waste and product defects. Organized into four sections, this book outlines the evolutional concepts of friction, and covers the general phenomena relevant to the rolling of metals. This includes the impact of roughness and velocity, basics of liquid and solid lubrication, mathematical modelling, and the properties of materials that affect friction in steel rolling, such as metals, oxides, and carbides. It connects the theoretical concepts, laboratory-scale observations, and phenomena in other areas of science and engineering to the large-scale industrial process of hot rolling. It also addresses roll properties, oxidation, wear and chemical composition of rolls and their impact on friction, the evolution of friction over schedules and roll campaigns, and mathematical modelling of friction in hot rolling. Friction and the Hot Rolling of Steel contains a large body of technical information that includes various chemical and physical properties of relevant materials, mathematical models, and plant and laboratory observations. It also provides an extensive reference list of sources that address specific problems and interests in more detail. Presents practical problems that help academics and industrial researchers to identify promising new research areas in tribology and metal processing Offers an insight into the principles of the effective research that combines both academic excellence and industrial relevance Illustrates with observations and easy-to-understand analogies, enhancing the understanding and control of the mechanisms that influence friction in industrial plants This text services technical, research, and academic personnel working in steel processing, railway engineering, rolling of other metals, solid lubrication, the automotive industry, and more.

Transient Effects in Friction

Transient Effects in Friction
Available:
Author: Andreas Goedecke
Pages: 197
ISBN: 9783709115060
Release: 2014-07-08
Editor: Springer Science & Business Media

DESCRIPTION OF THE BOOK:

Transient friction effects determine the behavior of a wide class of mechatronic systems. Classic examples are squealing brakes, stiction in robotic arms, or stick-slip in linear drives. To properly design and understand mechatronic systems of this type, good quantitative models of transient friction effects are of primary interest. The theory developed in this book approaches this problem bottom-up, by deriving the behavior of macroscopic friction surfaces from the microscopic surface physics. The model is based on two assumptions: First, rough surfaces are inherently fractal, exhibiting roughness on a wide range of scales. Second, transient friction effects are caused by creep enlargement of the real area of contact between two bodies. This work demonstrates the results of extensive Finite Element analyses of the creep behavior of surface asperities, and proposes a generalized multi-scale area iteration for calculating the time-dependent real contact between two bodies. The toolset is then demonstrated both for the reproduction of a variety of experimental results on transient friction as well as for system simulations of two example systems.

A Treatise on the Theory of Friction

A Treatise on the Theory of Friction
Available:
Author: John Hewitt Jellett
Pages: 220
ISBN: UOM:39015067269954
Release: 1872
Editor: Unknown

DESCRIPTION OF THE BOOK:

Friction

Friction
Available:
Author: Jeff Rosenblum,Jordan Berg
Pages: 240
ISBN: 9781576878835
Release: 2017-11-14
Editor: powerHouse Books

DESCRIPTION OF THE BOOK:

Every industry around the globe is being completely disrupted. Stalwart brands are losing market share to upstarts that capture our collective consciousness. Trillions of dollars are at stake. Brands know a new approach is needed. But most don’t realize the strategic underpinnings need to change. Great brands are no longer built through interruptive advertisements. Friction argues that brands don't simply need clever messages or new, shiny technologies. They need a fundamental change in strategy. Friction provides a system for embracing transparency, engaging audiences, creating evangelists, and unleashing unprecedented growth. The authors of Friction have worked on some of the industry's most innovative assignments for the world’s most successful brands. This groundbreaking book reveals how corporations can divorce themselves from legacy business models to create a passion brand. A brand that breaks its addiction to traditional advertising. A brand that empowers its customers. A brand that dominates the competition.