Indian Institute of Technology Ropar

School of Mechanical, Materials & Energy Engineering

1st Semester 2014-2015

Tribology (MEL456)

(4 Credits; 3-0-2)

Details of Course Coordinator:

Name : Dr. Harpreet Singh

Office : Room No. 103/208

Phone : +91-1881-242226, 242177, +91-98557-09052

Email : harpreetsingh@iitrpr.ac.in

Web : http://www.iitrpr.ac.in/smmee/harpreetsingh

Details of Teaching Assistant:

Name : Manoj Kumar Singla

Office : Room No. 113, XRD Lab

Phone : +91-1881-242143

Email : manojks@iitrpr.ac.in

Class Timings and Lecture Hall:

Lecture Hall L10

Lectures - Wednesdays (4.15-5.05pm), Thursdays (1.30-2.20pm) and Fridays

(2.25-3.15pm)

Laboratory hours - Thursdays (0900-1045 hours)

Textbook(s):

The content will majorly be adopted from the following textbooks

1. B. Bhushan; Introduction to Tribology; Wiley; 2002

2. G.W. Stachowiak, A.W. Batchelor; Engineering Tribology; Elsevier; 3rd Edn;

2005

3. J.E. Shigley, C.R. Mischke, R.G. Budynas, K.J. Nisbett; Mechanical Engineering

Design; McGraw Hill; 8th Edn; 2009

Further Reading:

1. T.A. Stolarski; Tribology in Machine Design; Butterworth Heinemann; 1990

2. J. Williams; Engineering Tribology; Cambridge; 2005

Reference Books:

1. ASM Handbook; Friction, Lubrication and Wear Technology; ASM International;

Vol. 18; 1992

2. M. J. Neale; The Tribology Handbook; Butterworth Heinemann; 1999

In addition to these books, the students are advised to read some latest research

papers from the prestigious journals in the area of tribology.

Course Description and Contents:

Tribology is an interdisciplinary course, which deals mainly with friction, wear and

lubrication. It is a relatively younger course, which is now frequently considered for

inclusion in UG/PG curriculum in many engineering disciplines across the globe. The

knowledge of this course shall be useful for designing various mechanical

components with higher reliability and low maintenance. As a matter of fact,

tribology knowledge is also useful for several other application domains such as

designing electronic and biomedical components. This course also presents

engineering/technological aspects of friction, wear and lubrication along with their

basic science.

1. Tribology basics

2. Surfaces and their characterization and measurement

3. Apparent and real area of contact

4. Contact pressure and deformation

5. Genesis of friction

6. Friction in contacting surfaces

7. Sliding and rolling friction

8. Laws and theory of friction

9. Stick-slip friction behaviour

10. Frictional heating and temperature rise

11. Wear: types, mechanisms - adhesive, abrasive, corrosive, erosion, fatigue,

fretting, etc.

12. Wear models, rates their control and damage

13. Lubrication types

14. Hydrodynamics lubrication regimes, lubricating oils, their specification,

contamination in use Lube oil systems for engineering equipment, such as,

hydraulic and steam turbines, IC engines, Industrial machinery, brakes and

clutches, etc.

15. Micro- and nano-tribology

Marks Distribution:

The following mark distribution scheme will be followed:

Part A-Theory (Total Marks: 100)

Particulars Marks

Major Examination (3 Hour) 40

Mid-Semester Examination (2 hour) 25

Quiz (1 hour) 15

State-of-the-art Seminar on Tribology# (Minimum 10 minutes) 10

Assignment(s) 10

#State-of-the-art Seminar

Each student shall deliver a 10-minute presentation on recent developments in the

field of Tribology. It is anticipated that the students refer to some of the recent

research papers/reports published on Tribology and deliver a presentation on any

chosen topic related to the area. The presentations shall start immediately after the

Mid-semester examination by the students of 2011 batch according to their entry

numbers, followed by 2012 batch students (detailed presentation schedule shall be

notified later on).

Assignment(s)

Late submission will NOT be accepted. Please inform the instructor beforehand if for

some legitimate reason you shall not be able to submit on time. Please give an

application addressed to the instructor mentioning the reason for not submitting on

time and clearly mention the date by which you expect to submit it later. Only

under extraordinary conditions an exception may be permitted, that too only once a

semester. Such an exception shall be at the sole discretion of the instructor.

Part B-Laboratory (Total Marks: 50)

The students are requested to attend the laboratory experiments with utmost

sincerity, discipline and punctuality. They must involve themselves into each lab

activity. The performance of each student shall be monitored and evaluated during

each lab class.

Particulars Marks

Independent Case Study/ Test Rig Development 10

End-Semester Viva Voce 10

Laboratory Report 10

Attendance 10

Continuous Evaluation during Lab Classes 10

Independent Case Study/ Test Rig Development Guidelines

The students can work in a group of 4 (maximum) for this assignment.

The students may design and develop (fabricate) some test rig to conduct

tribological experiments

They may also select any actual component (may be that of automobile or any

machine etc) and study the same for various tribological issues. It is suggested that

some failed components (such as bearings, brackets, gears) may be procured or

taken from the workshop/laboratories of the department for such study.

Based upon their study, they will prepare a detailed tribology report (atleast 10

pages) along with drawings of the components/test rig, which shall be part of their

laboratory report. During end-semester viva, the students may be asked to explain

their findings.

Grading Scheme:

Institute rules will be followed for assigning the final grade for this course. The

minimum pass marks for this course will be 35%.

Exams:

Borrowing of any type (such as pen, book, calculator, eraser etc.) is prohibited

during any test or exam. All institute rules will be followed and strict disciplinary

action shall be taken for their violation.

Estimated Time Schedule: (May be modified later on. Topics may be

added/removed due to time constraint.)

S. No.

Week Topics Chapters from Textbook

1 Jul 28 Introduction to Tribology 1, 2

2 Aug 4 Friction 1, 2

3 Aug 11 Engineering Surfaces, Contact between Surfaces 1, 2

4 Aug 18 Abrasive Wear 1, 2

5 Aug 25 Erosive Wear 1, 2

6 Sep 1 Adhesion and Adhesive Wear 1, 2

7 Sep 8 Corrosive and Oxidative Wear 1, 2

8 Sep 15 Fatigue Wear 1, 2

9 Sep 22 Mid Semester Exam (22nd to 27th Sep)

-

10 Sep 29 Lubrication, Students seminars begin 1, 2, 3

11 Oct 6 Hydrodynamic Lubrication 1, 2, 3

12 Oct 13 Hydrostatic Lubrication 1, 2, 3

13 Oct 20 Squeeze Film Lubrication 1, 2

14 Oct 27 Elasto-hydrodynamic Lubrication 1,2

15 Nov 3 Mixed and Boundary Lubrication 1,2

16 Nov 10 Lubricants Ref. 2

17 Nov 17 Micro- and Nano-tribology 2

18 Nov 24 Major Exams (24th to 29th Nov)