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2017/18 Taught Postgraduate Module Catalogue

MECH5570M Introduction to Tribology

15 creditsClass Size: 100

Module manager: Associate Professor Tomasz Liskiewicz
Email: T.Liskiewicz@leeds.ac.uk

Taught: Semester 1 (Sep to Jan) View Timetable

Year running 2017/18

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 typeNumberLength hoursStudent hours
Class tests, exams and assessment31.003.00
Lecture191.0019.00
Private study hours128.00
Total Contact hours22.00
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 typeNotes% of formal assessment
In-course MCQ3 x MCQ tests; one per work unit; equally weighted15.00
Assignment1 x essay assignment25.00
Total percentage (Assessment Coursework)40.00

Normally resits will be assessed by the same methodology as the first attempt, unless otherwise stated


Exams
Exam typeExam duration% of formal assessment
Standard exam (closed essays, MCQs etc)2 hr 00 mins60.00
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 module

Last updated: 17/10/2016

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