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1998 | Buch

Introduction Kapitel lesen Erstes Kapitel lesen

Contact Mechanics in Tribology

verfasst von: I. G. Goryacheva

Verlag: Springer Netherlands

Buchreihe : Solid Mechanics and Its Applications

Enthalten in: Professional Book Archive

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Über dieses Buch

Tribology is the science of friction, lubrication and wear of moving components. Results obtained from tribology are used to reduce energy losses in friction pro­ cesses, to reduce material losses due to wear, and to increase the service life of components. Contact Mechanics plays an important role in Tribology. Contact Mechanics studies the stress and strain states of bodies in contact; it is contact that leads to friction interaction and wear. This book investigates a variety of contact problems: discrete contact of rough surfaces, the effect of imperfect elasticity and mechanical inhomogeneity of contacting bodies, models of friction and wear, changes in contact characteristics during the wear process, etc. The results presented in this book were obtained during my work at the Insti­ tute for Problems in Mechanics of the Russian Academy of Sciences. The first steps of this research were carried out under the supervision of Professor L. A. Galin who taught me and showed me the beauty of scientific research and solutions. Some of the problems included in the book were investigated together with my col­ leagues Dr. M. N. Dobychin, Dr. O. G. Chekina, Dr. I. A. Soldatenkov, and Dr. E. V. Tor­ skaya from the Laboratory of Friction and Wear (IPM RAS) and Prof. F. Sadeghi from Purdue University (West Lafayette, USA). I would like to express my thanks to them. I am very grateful to Professor G. M. L.

Inhaltsverzeichnis

Frontmatter
Chapter 1. Introduction
Abstract
Tribology deals with the processes and phenomena which occur in friction interaction of solids.
I. G. Goryacheva
Chapter 2. Mechanics of Discrete Contact
Abstract
Contact problems in the classical formulation are posed for topographically smooth surfaces; this ensures that the contact region will be continuous.
I. G. Goryacheva
Chapter 3. Friction in Sliding/Rolling Contact
Abstract
The causes of friction have been explored for many years. According to the modern conception of tribology there are two main causes of energy dissipation which give rise to a resistance in sliding contact.
I. G. Goryacheva
Chapter 4. Contact of Inhomogeneous Bodies
Abstract
The use of surface treatment of different types leads to the changes in the surface properties relative to the bulk ones. This chapter is devoted to contact problems for bodies with specific surface properties, and to the analysis of the influence of mechanical properties of the surface layer (i.e. coating, boundary lubricant, etc.) on contact characteristics and internal stresses that govern the surface fracture of contacting bodies.
I. G. Goryacheva
Chapter 5. Wear Models
Abstract
The study of wear is one of the main targets of tribology. Let us remember, that a brief definition of tribology is as follows: “Tribology is friction, wear and lubrication”.
I. G. Goryacheva
Chapter 6. Wear Contact Problems
Abstract
One of the principal results of wear is that there are irreversible changes in the shape of the surfaces. These changes are comparable to elastic deformations and thus should be taken into account in the estimation of the contact characteristics of the bodies in sliding contact (distribution of stresses, dimensions of contact area etc.).
I. G. Goryacheva
Chapter 7. Wear of Inhomogeneous Bodies
Abstract
Different technical methods used for hardening of surfaces change their properties and essentially influence the character of the surface wear during the friction process. Local surface hardening (laser processing, ion implantation, etc) produces a structural inhomogeneity and, as a consequence, nonuniform wear. This leads to a waviness which often improves the performance of friction pairs. For example, it is well known that in the imperfect lubrication regime artificial hollows are created on the friction surface, thereby increasing the oil capacity of the surface, which in turn reduces the wear and the danger of seizure (see Garkunov, 1985). The presence of such pockets makes it possible to limit the presence of wear products in the friction zone, thereby improving the wear resistance of the junction and the stability of its tribotechnical characteristics.
I. G. Goryacheva
Chapter 8. Wear of Components
Abstract
In this chapter we give some applications of the methods presented in Chapter 6 to the analysis of the wear kinetics of some components. Study of wear kinetics makes it possible to predict the durability of moving parts of machines during operation; this is one of the most important problems in tribology.
I. G. Goryacheva
Chapter 9. Conclusion
Abstract
In this book we have considered various contact problems which reproduce the peculiarities of friction interaction. The solutions of these problems have two main applications.
I. G. Goryacheva
Chapter 10. References
I. G. Goryacheva
Backmatter
Metadaten
Titel
Contact Mechanics in Tribology
verfasst von
I. G. Goryacheva
Copyright-Jahr
1998
Verlag
Springer Netherlands
Electronic ISBN
978-94-015-9048-8
Print ISBN
978-90-481-5102-8
DOI
https://doi.org/10.1007/978-94-015-9048-8