338-0310/03 – Lubricating Engineering (MazTe)

Gurantor departmentDepartment of Hydromechanics and Hydraulic EquipmentCredits4
Subject guarantorIng. Lukáš Dvořák, Ph.D.Subject version guarantorIng. Lukáš Dvořák, Ph.D.
Study levelundergraduate or graduateRequirementCompulsory
Year3Semestersummer
Study languageCzech
Year of introduction2008/2009Year of cancellation2012/2013
Intended for the facultiesFSIntended for study typesBachelor
Instruction secured by
LoginNameTuitorTeacher giving lectures
DVO31 Ing. Lukáš Dvořák, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 2+2
Combined Credit and Examination 12+4

Subject aims expressed by acquired skills and competences

Students will learn about types of friction, they can characterize dry, limiting, fluid and mixed friction. They can define sliding pairs and their behavior in different types of friction. Students will understand the nature of the lubrication and lubrication function. They will familiarize themselves with the types and properties of lubricants. Particular attention is paid to rheological properties of lubricants. They know the different types of lubrication and types of lubrication devices and lubrication systems and learn how to select the right type of lubrication device for a specific case.

Teaching methods

Lectures
Tutorials
Experimental work in labs
Project work

Summary

Students will learn about friction in industrial practice and the use of lubricants. It is based on sliding and rolling friction in dry friction, mixed and fluid friction. Above all, the properties of liquid lubricants, both Newtonian and Non-Newtonian, are defined and the student is acquainted with the determination of their properties. In addition, sliding pairs and their behavior are defined in different friction types, the student is acquainted with the Stribeck diagram. Possible types of lubrication are listed - individual, circular, central. Finally, the methods for detecting the degradation of lubricants and methods of their variation or regeneration are presented.

Compulsory literature:

Mang, T. Bobzin, K. Bartels, T. Industrial tribology : tribosystems, friction, wear and surface engineering, lubrication. Online. Dostupné z Neale, M.J. , Tribology handbook, online: http://www.sciencedirect.com/science/book/9780750611985

Recommended literature:

Szeri, A.Z. Tribology : friction, lubrication, and wear. Washington : Hemisphere Publishing Corporation, 1980. 548 p. ISBN 0-07-062663-4

Way of continuous check of knowledge in the course of semester

Během semestru budou vypracovány dva projekty (programy), do kterých vstupují jak teoretické poznatky a výpočty, tak data zjištěná při měření. Za projekty je možno získat 20, resp. 15 bodů.

E-learning

Další požadavky na studenta

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Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

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. Stribeckův chart. Types of wear. Increase of wear with time. Seizure. 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 diagnosis 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, credit.

Conditions for subject completion

Combined form (validity from: 1960/1961 Summer semester, validity until: 2010/2011 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
        Exercises evaluation Credit 35 (35) 0
                Other task type Other task type 35  0
        Examination Examination 65 (65) 0
                Oral Oral examination 65  0
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2012/2013 (B2341) Engineering (2302R007) Hydraulics and Pneumatics P Czech Ostrava 3 Compulsory study plan
2012/2013 (B2341) Engineering (2302R007) Hydraulics and Pneumatics K Czech Ostrava 3 Compulsory study plan
2011/2012 (B2341) Engineering (2302R007) Hydraulics and Pneumatics P Czech Ostrava 3 Compulsory study plan
2011/2012 (B2341) Engineering (2302R007) Hydraulics and Pneumatics K Czech Ostrava 3 Compulsory study plan
2010/2011 (B2341) Engineering (2302R007) Hydraulics and Pneumatics P Czech Ostrava 3 Compulsory study plan
2010/2011 (B2341) Engineering (2302R007) Hydraulics and Pneumatics K Czech Ostrava 3 Compulsory study plan
2009/2010 (B2341) Engineering (2302R007) Hydraulics and Pneumatics P Czech Ostrava 3 Compulsory study plan
2009/2010 (B2341) Engineering (2302R007) Hydraulics and Pneumatics K Czech Ostrava 3 Compulsory study plan
2008/2009 (B2341) Engineering (2302R007) Hydraulics and Pneumatics P Czech Ostrava 3 Compulsory study plan
2008/2009 (B2341) Engineering (2302R007) Hydraulics and Pneumatics K Czech Ostrava 3 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner