Lectures:
1st Basic terms: Tribology, Tribotechnics. Lubrication - friction - wear: relations. Division of lubricants. Lubricants and their properties: viscosity, viscosity dependance on temperature and pressure, compressibility, lubricity.
2nd Lubricants and their properties: the rheology of lubricants, consistency, penetration. Rheometers.
3rd Modes of friction and lubrication. Stribeck chart. Types of wear. Increase of wear with time.
4th Sliding pair on dry friction and boundary lubrication. Bearing materials.
5th Sliding pair o fluid and mixed-friction lubrication. Plain bearings. Stick-slip.
6th Friction, wear and lubrication of rolling bearings.
7th Lubrication systems and devices: classification, description, properties, applications. Components of lubrication systems.
8th Calculations of lubrication systems.
9th Degradation of lubricants. Thermo-oxidative stability. Tribotechnical diagnostics of oils.
Exercises:
1st Physical properties of lubricants: viscosity, temperature dependence.
2nd Measurement of fluid viscosity and rheograms of grease.
3rd Measurement of pressure loss in the flow of grease - Programme No.1 - Part I
4th Calculation of pressure loss in pipes, comparing the measured and calculated values - Program 1 – Part II. Programme No.1 – max. 20 points.
5th Dry friction - boundary lubrication – Fluid friction: examples.
6th Calculation of Bearing - hydrodynamic axial and radial.
7th Calculation of Bearing - complete. Entering the Programme No. 2 Design lubrication system. Programme No.1 - max. 15 points.
8th Work on Program 2, and consultation.
9th Repetition, consultation, test: max 65 points.
1st Basic terms: Tribology, Tribotechnics. Lubrication - friction - wear: relations. Division of lubricants. Lubricants and their properties: viscosity, viscosity dependance on temperature and pressure, compressibility, lubricity.
2nd Lubricants and their properties: the rheology of lubricants, consistency, penetration. Rheometers.
3rd Modes of friction and lubrication. Stribeck chart. Types of wear. Increase of wear with time.
4th Sliding pair on dry friction and boundary lubrication. Bearing materials.
5th Sliding pair o fluid and mixed-friction lubrication. Plain bearings. Stick-slip.
6th Friction, wear and lubrication of rolling bearings.
7th Lubrication systems and devices: classification, description, properties, applications. Components of lubrication systems.
8th Calculations of lubrication systems.
9th Degradation of lubricants. Thermo-oxidative stability. Tribotechnical diagnostics of oils.
Exercises:
1st Physical properties of lubricants: viscosity, temperature dependence.
2nd Measurement of fluid viscosity and rheograms of grease.
3rd Measurement of pressure loss in the flow of grease - Programme No.1 - Part I
4th Calculation of pressure loss in pipes, comparing the measured and calculated values - Program 1 – Part II. Programme No.1 – max. 20 points.
5th Dry friction - boundary lubrication – Fluid friction: examples.
6th Calculation of Bearing - hydrodynamic axial and radial.
7th Calculation of Bearing - complete. Entering the Programme No. 2 Design lubrication system. Programme No.1 - max. 15 points.
8th Work on Program 2, and consultation.
9th Repetition, consultation, test: max 65 points.