### ME2302 DYNAMICS OF MACHINERY Syllabus for Mechanical Fifth(5th) Semester - Anna University

ME2302                                  DYNAMICS OF MACHINERY                             L  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 TorqueEngine 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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