Tribology in Machine Design

COURSE CONTENT
- Friction and wear. Contact processes (Hertz theory).
- Surface roughness.
- Measure the actual contact surface.
- Slip friction, contact temperature.
- Rolling friction. Theories of friction.
- Viscosity and flow indexes.
- Newtonian and non-Newtonian fluids.
- Viscosity Measurements. Petroff’s equation, Friction power losses.
- Stribeck curve.
- Hydrodynamic lubrication. Reynolds equation.
- Sliding bearings.
- Hydrostatic lubrication. Journal bearings.
- Aircraft bearings.
- Elastohydrodynamic lubrication.
- Mixed and boundary lubrication.
- Lubricant properties. Bearing materials. Tribological Applications.
LEARNING OUTCOMES
The course concerns the tribological design of machines and products. The subject matter of the course aims to give to the students of the Department of Mechanical and Aeronautical Engineering the knowledge of Tri-mechanical systems. Friction and wear. Contact processes (Hertz theory). Surface roughness. Measure the actual contact surface. Slip friction, contact temperature. Rolling friction. Theories of friction. Viscosity and flow indexes. Newtonian and non-Newtonian fluids. Viscosity Measurements. Petroff’s equation, Friction power losses. Lubrication. Stribeck curve. Hydrodynamic lubrication. Reynolds equation. Sliding bearings. Hydrostatic lubrication. Journal bearings. Aircraft bearings. Elastohydrodynamic lubrication. Mixed and boundary lubrication. Lubricant properties. Bearing materials. Tribological Applications.
Upon successful completion of the course the student will be able to:
- Has understand concepts related to theory in the design and application of friction wear and lubrication in Machine Elements in typical problems of Mechanical Engineer.
- To have methodological and quantitative understanding through the solving of related exercises, issues related to the tribological design of machine components in applications of Mechanical Engineering.
- In the Machine Design Laboratory, to has performed experimental tests ( not obligatory) related to the friction and wear measurements as well as viscosity measurements with appropriate devices.
- Through the semester project and the collaboration with the team members, they have to undergo a semester study focused in the tribo design of machine elements and products.
Course Features
- Lectures 0
- Quizzes 0
- Skill level All levels
- Language English
- Students 0
- Assessments Yes