Sunday, June 24, 2012
ME2302 DYNAMICS OF MACHINERY Syllabus for Mechanical Fifth(5th) Semester - Anna University
ME2302 DYNAMICS OF MACHINERY L T P C
3 1 0 4
OBJECTIVE:
· To understand the method of static force analysis and dynamic force analysis of mechanisms
· To study the undesirable effects of unbalances in rotors and engines.
· To understand the concept of vibratory systems and their analysis
· To understand the principles of governors and gyroscopes.
UNIT I
FORCE ANALYSIS AND
FLYWHEELS
12
Static force analysis of mechanisms – D ’ Alemberts principle - Inertia force and Inertia torque – Dynamic force analysis - Dynamic Analysis in Reciprocating Engines – Gas Forces
- Equivalent masses - Bearing loads - Crank shaft Torque–Engine shaking Forces - Turning moment diagrams -
Flywheels of engines and punch press
UNIT II BALANCING
12
Static and
dynamic
balancing - Balancing of
rotating masses
-
Balancing a
single cylinder Engine – Primary and secondary unbalanced forces - Balancing Multi-cylinder Engines – Firing order – Pivoted cradle balancing machines
UNIT III
FREE VIBRATION
12
Basic features of vibratory systems - Basic elements and lumping of parameters - Degrees of freedom - Single degree of freedom -
Free vibration - Equations of motion -
natural frequency - Types of Damping - Damped free vibration – Whirling of shafts and
critical
speed -
Torsional
systems; Natural frequency of two and three rotor
systems.
UNIT IV FORCED
VIBRATION
12
Response to
periodic forcing
-
Harmonic
Forcing
–
Forced
vibration caused
by unbalance - Support motion – Force transmissibility and amplitude
transmissibility - Vibration isolation
UNIT V
MECHANISMS FOR
CONTROL
12
Governors - Types - Centrifugal
governors -
Gravity controlled and spring controlled
centrifugal governors –Characteristics - Effect of friction - Controlling Force
– Quality of
governors – effect of friction.
Gyroscopes
-
Gyroscopic
couple - Gyroscopic stabilization - Gyroscopic effects in
Automobiles and ships
TEXT BOOKS:
TUTORIAL = 15 L = 45 TOTAL: 60 PERIODS
1. Ambekar A. G., Mechanism and Machine Theory, Prentice Hall of India, New
Delhi,
2007.
REFERENCES
1. Thomas Bevan, "Theory of Machines", CBS Publishers and Distributors, 1984.
2. Ghosh A. and Mallick A.K., "Theory of Mechanisms and Machines", Affiliated East-
West Press Pvt. Ltd., New Delhi, 1988.
3. Shigley J.E. and Uicker J.J., "Theory of Machines and Mechanisms", McGraw-Hill,
Inc., 1995.
4. Rao J.S. and Dukkipati
R.V., "Mechanism and Machine Theory ",
Wiley-Eastern
Limited, New
Delhi, 1992.
5. John Hannah and Stephens R.C., "Mechanics of Machines", Viva low-Priced Student
Edition, 1999.
6. Sadhu Singh “Theory of Machines” Pearson Education, 2002.
STANDARDS:
1. IS 11717 : 2000, Vocabulary on Vibration and Shock
2. IS 13301 : 1992, Guidelines for vibration isolation for
machine foundations
3. IS 10000 : Part 7 : 1980, Methods of tests for
internal
combustion engines: Part 7
Governing tests for
constant speed engines and selection of engines for use with
electrical generators
4. IS 13274 : 1992, Mechanical vibration - Balancing – Vocabulary
5. IS 13277 : 1992, Balancing machine - Description and evaluation
By Vinoth
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