2015/16 Taught Postgraduate Module Catalogue
MECH5570M Introduction to Tribology
15 creditsClass Size: 75
Module manager: Associate Professor Tomasz Liskiewicz
Email: T.Liskiewicz@leeds.ac.uk
Taught: 1 Sep to 31 Jan (Adv pre 2223), Semester 1 (Sep to Jan) View Timetable
Year running 2015/16
This module is not approved as an Elective
Objectives
Provide a broad based introduction to the interdisciplinary scientific discipline of tribology such that the students should gain an appreciation of how tribology impacts on the design and operation of mechanisms and the means adopted to lubricate them.Three approximately equal size work units containing interactive learning material, self-assessment questions (SAQs) and exercises will be provided with the following objectives:
- Work Unit 1: introduce tribology, the nature of real surfaces and their contact.
- Work Unit 2: develop an understanding of friction and wear.
- Work Unit 3: explain the regimes of lubrication and the role of the lubricant.
Syllabus
Work Unit 1: Introduction to Tribology and Real Surfaces
Fundamental concepts, major factors that affect tribological performance, Hertzian analysis of the contact of smooth surfaces, the complex nature of real rough surfaces, measurement and characterisation of rough surfaces, contact between rough surfaces.
Work Unit 2: Friction and Wear of Surfaces
Laws of friction, theories of friction, frictional properties of engineering materials, static and dynamic friction, stick-slip, wear mechanisms, laws of wear, analysis of wear, wear properties of engineering materials, oxides and surface films, experimental methods.
Work Unit 3: Lubricants and Lubrication
Types of lubricants (solid, liquid and gas), lubrication regimes, Stribeck curve, boundary lubrication, fluid film lubrication, the Reynolds equation, mixed lubrication, elastohydrodynamic lubrication, analysis of common bearing types.
Teaching methods
Delivery type | Number | Length hours | Student hours |
Class tests, exams and assessment | 3 | 1.00 | 3.00 |
Lecture | 19 | 1.00 | 19.00 |
Private study hours | 128.00 | ||
Total Contact hours | 22.00 | ||
Total hours (100hr per 10 credits) | 150.00 |
Private study
Student Centred distance learning delivered by the Internet and CD, solving example sheet problems, study for MCQ tests, essay assignment and preparation for examinations.Opportunities for Formative Feedback
- 1 essay assignment.- 3 x MCQ tests; one at the end of each work unit.
Methods of assessment
Coursework
Assessment type | Notes | % of formal assessment |
In-course MCQ | 3 x MCQ tests; one per work unit; equally weighted | 15.00 |
Assignment | 1 x essay assignment | 25.00 |
Total percentage (Assessment Coursework) | 40.00 |
Normally resits will be assessed by the same methodology as the first attempt, unless otherwise stated
Exams
Exam type | Exam duration | % of formal assessment |
Standard exam (closed essays, MCQs etc) | 2 hr 00 mins | 60.00 |
Total percentage (Assessment Exams) | 60.00 |
Normally resits will be assessed by the same methodology as the first attempt, unless otherwise stated
Reading list
There is no reading list for this moduleLast updated: 17/07/2015
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