Engineering tribology

As with the previous edition, the third edition of Engineering Tribology provides a thorough understanding of friction and wear using technologies such as lubrication and special materials. Tribology is a complex topic with its own terminology and specialized concepts, yet is vitally important throughout all engineering disciplines, including mechanical design, aerodynamics, fluid dynamics and biomedical engineering. This edition includes updated material on the hydrodynamic aspects of tribology as well as new advances in the field of biotribology, with a focus throughout on the engineering applications of tribology.New to this edition are end-of-chapter problems and an accompanying solutions manual, increasing the book's value as a textbook. The book offers an extensive range if illustrations which communicate the basic concepts of tribology in engineering better than text alone. All chapters include an extensive list of references and citations to facilitate further in-depth research and thorough navigation through particular subjects covered in each chapter. * Includes newly devised end-of-chapter problems, as well as an accompanying solutions manual. * Provides a comprehensive overview of the mechanisms of wear, lubrication and friction in an accessible manner designed to aid non-specialists.* Gives a reader-friendly approach to the subject using a graphic illustrative method to break down the typically complex problems associated with tribology. Engineering Tribology......Page 4 Copyright Page......Page 5 Contents......Page 8 1.1 Background......Page 30 1.2 Meaning of tribology......Page 31 1.3 Cost of friction and wear......Page 34 1.4 Summary......Page 36 Revision questions......Page 37 References......Page 38 2.2 Oil viscosity......Page 40 2.3 Viscosity temperature relationship......Page 42 2.4 Viscosity index......Page 44 2.5 Viscosity pressure relationship......Page 46 2.6 Viscosity-shear rate relationship......Page 51 2.7 Viscosity measurements......Page 53 2.9 Oil viscosity classification......Page 60 2.10 Lubricant density and specific gravity......Page 62 2.11 Thermal properties of lubricants......Page 63 2.12 Temperature characteristics of lubricants......Page 64 2.13 Other lubricant characteristics......Page 69 2.14 Optical properties of lubricants......Page 72 2.16 Lubricant impurities and contaminants......Page 73 2.17 Solubility of gases in oils......Page 74 Revision questions......Page 77 References......Page 78 3.1 Introduction......Page 80 3.2 Mineral oils......Page 81 3.3 Synthetic oils......Page 86 3.4 Emulsions and aqueous lubricants......Page 93 3.5 Greases......Page 96 3.6 Lubricant additives......Page 111 References......Page 127 4.2 Reynolds equation......Page 132 4.3 Pad bearings......Page 147 4.4 Converging-diverging wedges......Page 168 4.5 Journal bearings......Page 177 4.6 Thermal effects in bearings......Page 204 4.7 Limits of hydrodynamic lubrication......Page 214 4.8 Hydrodynamic lubrication with non-Newtonian fluids......Page 215 4.9 Reynolds equation for squeeze films......Page 222 4.10 Porous bearings......Page 227 Revision questions......Page 229 References......Page 231 5.2 Non-dimensionalization of the Reynolds equation......Page 234 5.3 The Vogelpohl parameter......Page 235 5.4 Finite difference equivalent of the Reynolds equation......Page 237 5.5 Numerical analysis of hydrodynamic lubrication in idealized journal and partial arc bearings......Page 243 5.6 Numerical analysis of hydrodynamic lubrication in a real bearing......Page 249 Revision questions......Page 287 References......Page 288 6.1 Introduction......Page 290 6.2 Hydrostatic bearing analysis......Page 291 6.3 Generalized approach to hydrostatic bearing analysis......Page 299 6.4 Optimization of hydrostatic bearing design......Page 300 6.5 Aerostatic bearings......Page 308 6.7 Stability of hydrostatic and aerostatic bearings......Page 311 Revision questions......Page 312 References......Page 313 7.1 Introduction......Page 316 7. 2 Contact stresses......Page 317 7.3 Contact between two elastic spherical or spheroidal bodies......Page 319 7.4 Elastohydrodynamic lubricating films......Page 340 7.5 Micro-elastohydrodynamic lubrication and mixed or partial EHL......Page 357 7.6 Surface temperature at the conjunction between contacting solids and its effect on EHL......Page 362 7.7 Traction and EHL......Page 378 Revision questions......Page 387 References......Page 389 8.1 Introduction......Page 392 8.2 Low temperature - low load lubrication mechanisms......Page 394 8.3 Low temperature - high load lubrication mechanisms......Page 395 8.4 High temperature - medium load lubrication mechanisms......Page 416 8.5 High temperature - high load lubrication mechanisms......Page 424 8.6 Boundary and EP lubrication of non-metallic surfaces......Page 439 Revision questions......Page 440 References......Page 441 9.2 Lubrication by solids......Page 448 9.3 Wear resistant coatings and surface treatments......Page 463 Revision questions......Page 482 References......Page 483 10.2 Surfaces of solids......Page 490 10.3 Contact between solids......Page 504 10.4 Friction and wear......Page 512 Revision questions......Page 523 References......Page 524 11.2 Abrasive wear......Page 530 11.3 Erosive wear......Page 556 11.4 Cavitation wear......Page 571 11.5 Summary......Page 574 Revision questions......Page 575 References......Page 576 12.2 Mechanism of adhesion......Page 582 12.3 Control of the adhesive wear......Page 597 Revision questions......Page 599 References......Page 600 13.2 Corrosive wear......Page 602 13.3 Oxidative wear......Page 611 Revision questions......Page 619 References......Page 620 14.1 Introduction......Page 624 14.2 Fatigue wear during sliding......Page 625 14.3 Fatigue wear during rolling......Page 632 Revision questions......Page 644 References......Page 645 15.1 Introduction......Page 650 15.2 Fretting wear......Page 651 15.3 Melting wear......Page 668 15.4 Wear due to electrical discharges and passage of electric current across a contact......Page 671 15.6 Impact wear......Page 672 Revision questions......Page 675 References......Page 676 16.2 Tribology of polymers......Page 680 16.3 Tribology of polymer composites......Page 704 16.4 Wear and friction of ceramics......Page 710 16.5 Summary......Page 726 Revision questions......Page 727 References......Page 728 17.2 Biotribology......Page 734 17.3 Environmental implications of tribology......Page 738 17.4 Nanotribology - basic concepts......Page 740 17.5 Summary......Page 743 References......Page 744 A.1 User-friendly interface......Page 748 A.2 Program 'VISCOSITY'......Page 750 A.3 Program 'SIMPLE'......Page 753 A.4 Program 'PARTIAL'......Page 757 A.5 Program 'THERMAL'......Page 766 A.6 Program 'DEFLECTION'......Page 777 A.7 Program 'GROOVE'......Page 786 A.8 Program 'STABILITY'......Page 800 INDEX......Page 806 As with the previous edition, the third edition of Engineering Tribology provides a thorough understanding of friction and wear using technologies such as lubrication and special materials. Tribology is a complex topic with its own terminology and specialized concepts, yet is vitally important throughout all engineering disciplines, including mechanical design, aerodynamics, fluid dynamics and biomedical engineering. This edition includes updated material on the hydrodynamic aspects of tribology as well as new advances in the field of biotribology, with a focus throughout on the engineering applications of tribology. New to this edition are end-of-chapter problems and an accompanying solutions manual, increasing the books value as a textbook. The book offers an extensive range if illustrations which communicate the basic concepts of tribology in engineering better than text alone. All chapters include an extensive list of references and citations to facilitate further in-depth research and thorough navigation through particular subjects covered in each chapter. * Includes newly devised end-of-chapter problems, as well as an accompanying solutions manual. * Provides a comprehensive overview of the mechanisms of wear, lubrication and friction in an accessible manner designed to aid non-specialists. * Gives a reader-friendly approach to the subject using a graphic illustrative method to break down the typically complex problems associated with tribology "This book provides a valuable insight into an important yet obscure subject where there are few available guides. The reader is first introduced to the fundamental concept of tribology. This concept is then used to show how the various topics in tribology are interrelated to form one coherent subject. Illustrations are widely used throughout the book to assist readers in grasping the fundamental tribological concepts. Mechanisms of wear, friction and lubrication are comprehensively described in an accessible manner that is designed to be helpful to non-specialists. The control of wear is given extensive treatment with a thorough discussion of lubricant additives, solid lubricants and surface coatings. The effectiveness of coatings in suppressing specific forms of wear is described together with the methods of coating deposition. More than 1000 references are provided to give the reader access to more specialized information if required. The numerical analysis of hydrodynamic lubrication is supported by a number of computer programs, written in Matlab, which enable the readers to quantitatively analyze lubrication problems. A careful study of the book will not only enable the readers to understand what tribology is, but also to comprehend how it can be applied to solve problems of mechanical failure, reduce maintenance costs and lower the energy consumption."--BOOK JACKET. As with the previous edition, the third edition of Engineering Tribology provides a thorough understanding of friction and wear using technologies such as lubrication and special materials. Tribology is a complex topic with its own terminology and specialized concepts, yet is vitally important throughout all engineering disciplines, including mechanical design, aerodynamics, fluid dynamics and biomedical engineering. This edition includes updated material on the hydrodynamic aspects of tribology as well as new advances in the field of biotribology, with a focus throughout on the engineering applications of tribology.

This book offers an extensive range if illustrations which communicate the basic concepts of tribology in engineering better than text alone. All chapters include an extensive list of references and citations to facilitate further in-depth research and thorough navigation through particular subjects covered in each chapter.

* Includes newly devised end-of-chapter problems * Provides a comprehensive overview of the mechanisms of wear, lubrication and friction in an accessible manner designed to aid non-specialists. * Gives a reader-friendly approach to the subject using a graphic illustrative method to break down the typically complex problems associated with tribology.

"As with the previous edition, the third edition of Engineering Tribology provides a thorough understanding of friction and wear, including an understanding of lubrication and materials with specific friction properties. This new edition includes updated information on the hydrodynamic aspects of tribology as well as new advances in the field of biotribology, with a focus throughout on the engineering applications of tribiology"--Jacket