ME6505 DYNAMICS OF MACHINES L T P C
3 0 0 3
OBJECTIVES:
- To understand the force-motion relationship in components subjected to external forces and analysis of standard mechanisms.
- To understand the undesirable effects of unbalances resulting from prescribed motions in mechanism.
- To understand the effect of Dynamics of undesirable vibrations.
- To understand the principles in mechanisms used for speed control and stability control.
UNIT I FORCE ANALYSIS 9
Dynamic force analysis – Inertia force and Inertia torque– D Alembert’s principle –Dynamic Analysis in reciprocating engines – Gas forces – Inertia effect of connecting rod– Bearing loads – Crank shaft torque – Turning moment diagrams –Fly Wheels – Flywheels of punching presses- Dynamics of Cam- follower mechanism.
UNIT II BALANCING 9
Static and dynamic balancing – Balancing of rotating masses – Balancing a single cylinder engine – Balancing of Multi-cylinder inline, V-engines – Partial balancing in engines – Balancing of linkages – Balancing machines-Field balancing of discs and rotors.
UNIT III SINGLE DEGREE FREE VIBRATION 9
Basic features of vibratory systems – Degrees of freedom – single degree of freedom – Free vibration
– Equations of motion – Natural frequency – Types of Damping – Damped vibration– Torsional vibration of shaft – Critical speeds of shafts – Torsional vibration – Two and three rotor torsional
systems.
UNIT IV FORCED VIBRATION 9
Response of one degree freedom systems to periodic forcing – Harmonic disturbances –Disturbance caused by unbalance – Support motion –transmissibility – Vibration isolation vibration measurement.
UNIT V MECHANISM FOR CONTROL 9
Governors – Types – Centrifugal governors – Gravity controlled and spring controlled centrifugal governors – Characteristics – Effect of friction – Controlling force curves. Gyroscopes –Gyroscopic forces and torques – Gyroscopic stabilization – Gyroscopic effects in Automobiles, ships and airplanes.
OUTCOMES:
TOTAL : 45 PERIODS
- Upon completion of this course, the Students can able to predict the force analysis in mechanical system and related vibration issues and can able to solve the problem
TEXT BOOK:
- Uicker, J.J., Pennock G.R and Shigley, J.E., “Theory of Machines and Mechanisms” ,3rd
Edition, Oxford University Press, 2009.
- Rattan, S.S, “Theory of Machines”, 3rd Edition, Tata McGraw-Hill, 2009
REFERENCES:
- Thomas Bevan, "Theory of Machines", 3rd Edition, CBS Publishers and Distributors, 2005.
- Cleghorn. W. L, “Mechanisms of Machines”, Oxford University Press, 2005
- Benson H. Tongue, ”Principles of Vibrations”, Oxford University Press, 2nd Edition, 2007
- Robert L. Norton, "Kinematics and Dynamics of Machinery", Tata McGraw-Hill, 2009.
- Allen S. Hall Jr., “Kinematics and Linkage Design”, Prentice Hall, 1961
- Ghosh. A and Mallick, A.K., “Theory of Mechanisms and Machines", Affiliated East-West Pvt.
Ltd., New Delhi, 1988.
- Rao.J.S. and Dukkipati.R.V. "Mechanisms and Machine Theory", Wiley-Eastern Ltd., New
Delhi, 1992.
- John Hannah and Stephens R.C., "Mechanics of Machines", Viva Low-Prices Student Edition,
1999.
- Grover. G.T., “Mechanical Vibrations”, Nem Chand and Bros., 1996
- William T. Thomson, Marie Dillon Dahleh, Chandramouli Padmanabhan, “Theory of Vibration with Application”, 5th edition, Pearson Education, 2011
- V.Ramamurthi, "Mechanics of Machines", Narosa Publishing House, 2002.
- Khurmi, R.S.,”Theory of Machines”, 14th Edition, S Chand Publications, 2005.
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