SRI RAMAKRISHNA INSTITUTE OF TECHNOLOGY, COIMBATORE-10
(Approved by AICTE, New Delhi – Affiliated to Anna University, Chennai)
Department of Mechanical Engineering
(Accredited by NBA)
Course Title: ME 6503 DESIGN OF MACHINE ELEMENTS
Number of Hours: L T P C
Department : Mechanical Engineering
Programme : B.E
Class & Semester : III Year (B Section) & Fifth
Academic Year : 2015-16
Course Instructor :Mr.V.MUTHU KUMAR, AP(Sr.Gr)/Mech
Regulation :2013
30 0 3
Prerequisite Courses: 1. Engineering Mechanics.
2. Strength of Materials.
3.Engineering Materials and Metallurgy
References :
Text Books:
T1. Bhandari V. “Design of Machine Elements”, Third Edition, Tata McGraw-Hill Book Co, 2010.
T2. Joseph Shigley, Charles Mischke, Richard Budynas and Keith Nisbett “Mechanical Engineering Design”, 8th
Edition, Tata McGraw-Hill, 2008
Reference Books:
R1. Sundararajamoorthy T. V, Shanmugam .N, "Machine Design", Anuradha Publications, Chennai, 2003.
R2. Robert C. Juvinall and Kurt M. Marshek, “Fundamentals of Machine Design”, 4th Edition, Wiley, 2005
R3. Alfred Hall, Halowenko, A and Laughlin, H., “Machine Design”, Tata McGraw-Hill BookCo.
(Schaum’s Outline), 2010
R4. Bernard Hamrock, Steven Schmid,Bo Jacobson, “Fundamentals of Machine Elements”,2 nd Edition, Tata
McGraw-Hill Book Co., 2006.
R5. Orthwein W, “Machine Component Design”, Jaico Publishing Co, 2003.
R6. Ansel Ugural, “Mechanical Design – An Integral Approach", 1st Edition, Tata McGraw-Hill Book Co,
2003.
R7. Merhyle F. Spotts, Terry E. Shoup and Lee E. Hornberger, “Design of Machine Elements” 8th Edition,
Printice Hall, 2003.
e-Learning Resources :
1. http://www2.mae.ufl.edu/designlab/Lab%20Assignments/EML2322LDesign%20Process.pdf.
2. http://stuff.mit.edu/afs/athena/course/3/3.225/book.pdf
3. http://www.newagepublishers.com/samplechapter/001873.pdf
4. http://www.nptel.iitm.ac.in/courses/Webcoursecontents/IIT%20Kharagpur/Machine%20design1/pdf/Module-3_lesson-2.pdf
5. http://www.eng.auburn.edu/users/marghitu/chapter3.pdf
6. http://elearning.vtu.ac.in/P7/enotes/AU51/Crankshaft-KGK.pdf
7. http://users.beagle.com.au/lathefan/Cutting%20keyway%20with%20a%20shaper.pdf
8. http://www.nptel.iitm.ac.in/courses/Webcoursecontents/IIT%20Kharagpur/Machine%20design1/pdf/module-5%20lesson-2.pdf
9. http://www.nptel.iitm.ac.in/courses/Webcoursecontents/IIT%20Kharagpur/Machine%20design1/pdf/mod11les1.pdf
10. http://vedyadhara.ignou.ac.in/wiki/images/e/e2/UNIT_4_PC.pdf
11. http://www.clear.rice.edu/mech400/Adhesive_joint_stress.pdf
12. http://elearning.vtu.ac.in/12/enotes/Des_Mac-Ele2/Unit3-RK.pdf.
13. http://www.engineersaustralia.org.au/sites/default/files/shado/Learned%20Groups/National
%20Committees%20and%20Panels/Engineering%20Design/Part%203.pdf
14. http://nptel.iitm.ac.in/courses/IIT-MADRAS/Machine_Design_II/pdf/5_3.pdf
Instructor Mail : muthu07megct@gmail.com
Course Objectives :
1 .To familiarize the various steps involved in the Design Process
2. To understand the principles involved in evaluating the shape and dimensions of a component to satisfy
functional and strength requirements.
3. To learn to use standard practices and standard data
4 To learn to use catalogues and standard machine components
Course Plan
1
2
3
Unit
Unit I - STEADY STRESSES AND
VARIABLE STRESSES IN
MACHINE
MEMBERS
Sl.
No.
Topics to be Discussed
Unit Objectives
Introduction to the design
process – factors influencing
machine design, selection of
materials based on mechanical
properties-Preferred numbers,
fits and tolerances
Direct, Bending and torsional
stress equations – Impact and
shock loading – calculation of
principle stresses for various
load combinations, eccentric
loading
Design of curved beams – crane
hook and ‘C’ frame - Factor of
safety - theories of failure –
stress concentration – design for
variable loading.
To understand the design
process and selection of
materials
for
machine
members
To able to understand the
variable stresses induced in
the machine members
To able to understand the
factor of safety of various
machine members
Reference
Page No
T1
2-12,
65-69
No. of
Periods
Required
T1
76-85,
102-106,
180-182
4
T1
130-140,
77-79,
106-117,
141-165
4
4
5
6
Unit II-SHAFTS AND
COUPLINGS
Total Hours:
Design of solid and hollow
shafts based on strength, rigidity
and critical speed
Design of keys, key ways and
splines
To able to understand the
design of shaft based on
strength and stiffness.
To able to Know the stresses
induced in the Keys.
Design of rigid and flexible
Couplings
To able to understand the
need
of
coupling
and
difference between coupling
and clutch
2
10
330-344,
3
T1
346-354
1
T1
356-371
4
T1
7
8
9
UNIT III - TEMPORARY AND
PERMANENT JOINTS
Total Hours : 08
Threaded fasteners - Design of
bolted joints including eccentric
loading
Knuckle joints, Cotter joints
To able to know the
difference
between
temporary and permanent
joints.
To able to know the
application of knuckle and
cotter joints.
Design of welded joints, riveted
joints for structures- Theory of
bonded joints.
To able to know the strength
of welded joints
Design of
springs,
To able to know the types of
springs and its applications.
T1
219-254
3
T1
94-102,
85-94
2
T1
272-305
4
10
11
12
UNIT IV ENERGY
STORING
ELEMENTS AND
ENGINE
COMPONENTS
Total Hours: 09
various
types
of
optimization of helical springsrubber springs
Design of flywheels considering
stresses in rims and arms, for
engines
and
punching
machines.
To able to know the optimum
parameter of spring.
To able to understand the
stresses induced in rims and
arms.
T1
T1
T1
393-403
3
403-447
3
750-767,
1
Design of Connecting Rods and
crank shafts.
13
To able to know the forces
acting on the connecting rod.
T1
867-880
880-903
2
Total Hours: 09
UNIT V
BEARINGS
14
15
Design of Sliding contact and
rolling contact bearings
Design of hydrodynamic journal
bearings, Sommerfield Number,
Raimondi & Boyd graphs,
Selection of Rolling Contact
bearings.
To able to know the selection
of lubricating oil of sliding
contact and rolling contact
bearings.
To able to know the static
and dynamic load carrying
capacity of bearings
T1
T1
606-647
4
564-596
5
Total Hours: 09
Bridging the Curriculum gap:
16
Topic 1
Creep
17
Topic 2
Modes of Failure
To able to know the
deformation of a component
under constant load
To able to know the functional
performance of a component
T1
50-52
2
T1
76-77
1
Total Hours:3
Additional Contents over and above the curriculum:
18
Module 1
19
Module 2
Design Considerations of
Castings
Design considerations of
Forgings
To able to know the stresses
induced in a castings
To able to know the principle
of forged components
T1
57-59
1
T1
59-61
2
Total Hours :3
Total duration required :
45 periods +3 periods for bridging the curriculum gap+ 3 periods for over and above curriculum+ 6 periods for Tests = 57 Periods
Programme Educational Objectives PEOs
This Course is conducted to achieve the following Programme Educational Objectives (PEOs):
•
PEO 1. Be able to apply the principles of Mechanical engineering to solve real time problems and succeed in their career.
•
PEO 2.Be able to contribute and communicate effectively in multidisciplinary projects and perform services related to
mechanical engineering to meet the customer requirements in both quality and quantity.
•
•
PEO 3.Be able to update the modern trends in engineering and technology through continuous learning and be the leaders
in their profession.
Program Outcomes (POs)
•
PO1: An ability to solve basic Engineering problems by applying mathematics, science, and engineering fundamentals.
•
PO2: An ability to conduct Investigations using design of experiments, analysis and interpretation of data to arrive at valid
conclusions.
•
PO3: An ability to design a mechanical engineering component and processes within economic, environmental, ethical and
manufacturability constraints.
•
PO4: Ability to identify, formulate, analyze and solve Mechanical Engineering Problems.
•
PO5: An ability to communicate effectively through written reports or oral presentations.
•
PO6: An ability to understand the impact of engineering solutions in a global, economic, environmental, professional and
societal context.
•
PO7: An ability to recognize the need and to engage in independent and life-long learning.
•
PO8: An ability to have knowledge of contemporary issues
•
PO9: An ability to use the appropriate techniques and modern engineering tools necessary for engineering practice.
•
PO10: An ability to apply the principles of management to manage projects Multidisciplinary environment.
Course Outcome:
At the End of the Course , a student will be able to
Apply
CO1: Analyze the component and investigate the stresses induced in it
Analyze
CO2: Design and analyze the shaft based on strength and Rigidity
CO3: Design Machine elements such as couplings, Design of welded joint, Threaded Fastners,springs, flywheel
Create
and bearing etc using allowable load under the given operating conditions
Mapping:
CO1
CO2
CO3
1
2
PO1
2
1
1
PO2
1
2
2
PO3
2
2
2
PO4
2
1
2
PO5
PO6
1
PO7
PO8
1
PO9
1
2
1
PO10
1
1
Moderately Correlated
Strongly Correlated
Assignments / Tutorials / Case Study / Innovative Work :
Tutorials:
T1.Problems in Theories of failure
T2.Problems in design of Couplings
T3.Problems in design of welded joints
T4. Problems in design of springs
T5. Problems in design of bearings
1.
Internal Assessment (20)
Internal Assessment Test 1 will be conducted for 50 Marks. (5*2=10 & 2*20=40)
Internal Assessment Test 2 will be conducted for 50 Marks. (5*2=10 & 2*20=40)
Internal Assessment Test 3 will be conducted for 50 Marks. (5*2=10 & 2*20=40)
Tests as per the schedule given by the university - Average performance is considered for assessment out of 20.
2. External Assessment (80)
University will conduct end semester examination for 100 marks (10*2=20 & 5*16=80)
Performance will be considered for assessment out of 80.
COURSE INSTRUCTOR
HoD-MECH
PRINCIPAL