CHAPTER 1 INTRODUCTION TO TRIBOLOGY 1
2 1.1 Definition of Tribology Contents 1.2 History of Tribology 1.3 Importance of Tribology 1.4 Research in Tribology 1.5 Tribological Components and Applications
3 Upon completing this chapter, you should be able to: Learning objectives 1. Define tribology. 2. Understand the history and importance of tribology. 3.Identify the tribological components/machine elements/ and their applications in machine design and operation.
Introduction Tribology is the branch of engineering that deals with the interaction of surfaces in relative motion (as in bearings or gears): their design • friction • Adhesion • lubrication • and wear 4
1.1 Definition of tribology • “Tribology” is derived from the Greek word ‘tribos’ meaning rubbing or sliding. • It is the study of rubbing or sliding. • Tribology focuses on friction , wear and lubrication of interacting surfaces in relative motion (1967) • Tribology is an applied art and as such should be based upon, or requires background knowledge, in many topics. In mechanical engineering (the seat of most design instruction): • Fluid mechanics , • Elasticity, 5
• Material science , • Dynamics, • Heat transfer , Methods of mechanical design and the like. But the complete tribologist will have added some knowledge • Plasticity • Contact mechanics • Surface Chemistry, (oxidation, adhesion, adsorption), • Lubricant Chemistry and the like.
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- Fall '19
- Msc. Amar Yemim