## OME552 Syllabus - Vibration And Noise Control - 2017 Regulation - Open Elective | Anna University

OME552

VIBRATION AND NOISE CONTROL

L T P C

3003

OBJECTIVE: The student will be able to understand
• Basic about the noise and its control methods
• the sources of vibration and noise in automobiles and make design modifications to reduce the vibration and noise and improve the life of the components
• About the noise in the automotive sources
• Various control techniques in controlling noise and vibrations.
• Know about the source of noise

UNIT I

BASICS OF VIBRATION

9

Introduction, classification of vibration: free and forced vibration, undamped and damped vibration, linear and non linear vibration, response of damped and undamped systems under harmonic force, analysis of single degree and two degree of freedom systems, torsional vibration, determination of natural frequencies.

UNIT II

BASICS OF NOISE

9

Introduction, amplitude, frequency, wavelength and sound pressure level, addition, subtraction and averaging decibel levels, noise dose level, legislation, measurement and analysis of noise, measurement environment, equipment, frequency analysis, tracking analysis, sound quality analysis.Introduction, amplitude, frequency, wavelength and sound pressure level, addition, subtraction and averaging decibel levels, noise dose level, legislation, measurement and analysis of noise, measurement environment, equipment, frequency analysis, tracking analysis, sound quality analysis.

UNIT III

AUTOMOTIVE NOISE SOURCES

9

Noise Characteristics of engines, engine overall noise levels, assessment of combustion noise, assessment of mechanical noise, engine radiated noise, intake and exhaust noise, engine necessary contributed noise, transmission noise, aerodynamic noise, tire noise, brake noise.

UNIT IV

CONTROL TECHNIQUES

9

Vibration isolation, tuned absorbers, un-tuned viscous dampers, damping treatments, application dynamic forces generated by IC engines, engine isolation, crank shaft damping, modal analysis of the mass elastic model shock absorbers.

UNIT V

SOURCE OF NOISE AND CONTROL

9

Methods for control of engine noise, combustion noise, mechanical noise, predictive analysis, palliative treatments and enclosures, automotive noise control principles, sound in enclosures, sound energy absorption, sound transmission through barriers

TOTAL: 45 PERIODS

OUTCOMES:
• Understand the basic of noise and vibrations.
• Understanding causes, source and types of vibrations in machineries
• Gaining knowledge in sources and measurement standard of noise
• Ability to design and develop vibrations and noise control systems.
• Ability to know techniques in controlling the noise and vibrations.

TEXT BOOKS:
1. Singiresu S.Rao, “Mechanical Vibrations”, 5th Edition, Pearson Education, 2010

REFERENCES:
1. Benson H. Tongue, “Principles of Vibrations”, 2nd Edition, Oxford University, 2007
2. David Bies and Colin Hansen, “Engineering Noise Control – Theory and Practice”,4th Edition, E and FN Spon, Taylore & Francise e-Library, 2009
3. William T. Thomson, Marie Dillon Dahleh, Chandramouli Padmanabhan, “Theory of Vibration with Application”, 5th Edition Pearson Education, 2011
4. Grover. G.T., “Mechanical Vibrations”, Nem Chand and Bros., 1996
5. Bernard Challen and Rodica Baranescu - “Diesel Engine Reference Book”, Second Edition, SAE International, 1999.
6. Julian Happian-Smith - “An Introduction to Modern Vehicle Design”- Butterworth-Heinemann, 2004
7. Rao, J.S and Gupta, K., “Introductory course on Theory and Practice of Mechanical Vibration”, 2nd Edition, New Age International Publications, 2010
8. Shabana. A.A., “Theory of vibrations – An introduction”, 2nd Edition, Springer, 2010
9. Balakumar Balachandran and Edward B. Magrab, “Fundamentals of Vibrations”, 1st Editon, Cengage Learning, 2009
10. John Fenton, “Handbook of Automotive body Construction and Design Analysis – Professional Engineering Publishing, 1998