ED4154 Vibration Analysis and Control Syllabus:

ED4154 Vibration Analysis and Control Syllabus – Anna University PG Syllabus Regulation 2021

COURSE OBJECTIVES

1. To appreciate the basic concepts of vibration in damped and undamped systems
2. To calculate the natural frequencies and mode shapes of the two degree freedom systems
3. To determine the natural frequencies and mode shapes of the multi degree freedom and continuous systems
4. To learn the fundamentals of control techniques of vibration and noise levels
5. To use the instruments for the measuring and analyzing the vibration levels in a body

UNIT-I FUNDAMENTALS OF VIBRATION

Introduction -Sources of Vibration-Mathematical Models- Displacement, velocity and Acceleration Review Of Single Degree Freedom Systems -Vibration isolation Vibrometers and accelerometers – Response To Arbitrary and non- harmonic Excitations – Transient Vibration –Impulse loads Critical Speed Of Shaft-Rotor systems

UNIT-II TWO DEGREE FREEDOM SYSTEM

Introduction-Free Vibration Of Undamped And Damped – Forced Vibration With Harmonic Excitation System –Coordinate Couplings And Principal Coordinates.

UNIT-III MULTI-DEGREE FREEDOM SYSTEM AND CONTINUOUS SYSTEM

Multi Degree Freedom System –Influence Coefficients and stiffness coefficients- Flexibility Matrix and Stiffness Matrix – Eigen Values and Eigen Vectors-Matrix Iteration Method –Approximate Methods: Dunkerley, Rayleigh’s, and Holzer Method -Geared Systems-Eigen Values & Eigenvectors for large system of equations using sub space, Lanczos method – Continuous System: Vibration of String, Shafts and Beams

UNIT-IV VIBRATION AND NOISE CONTROL

Specification of Vibration Limits – Vibration severity standards- Vibration as condition Monitoring Tool-Vibration Isolation methods – Dynamic Vibration Absorber – Static and Dynamic Balancing machines – Field balancing – Major sources of noise – Noise survey techniques – Measurement technique for vehicular noise – Road vehicle noise standards – Industrial noise sources – Control Strategies – Noise control at the source and along the path – use of acoustic barriers – Noise control at the receiver.

UNIT-V EXPERIMENTAL METHODS IN VIBRATION ANALYSIS

Vibration Analysis Overview – Experimental Methods in Vibration Analysis.-Vibration Measuring Instruments – Selection of Sensors- Accelerometer Mountings. -Vibration Exciters-Mechanical, Hydraulic, Electromagnetic And Electrodynamics –Frequency Measuring Instruments-. System Identification from Frequency Response -Testing for resonance and mode shapes

COURSE OUTCOMES:

On Completion of the course the student will be able to
CO1 Apply the basic concepts of vibration in damped and undamped systems
CO2 Determine the natural frequencies and mode shapes of the two degree freedom systems.
CO3 Calculate the natural frequencies and mode shapes of the multi degree freedom and continuous systems
CO4 Control the vibration and noise levels in a body
CO5 Measure and analyze the vibration levels in a body

REFERENCES:

1. Graham Kelly, Sand Shashidhar K. Kudari, “Mechanical Vibrations”, Tata McGraw – Hill Publishing Com. Ltd., 2007
2. Singiresu S. Rao,”Mechanical Vibrations,”Pearson Education Incorporated, 2017
3. Ramamurti.V,“MechanicalVibrationPracticewithBasicTheory”,NarosaPublishingHouse, 2010
4. WilliamT.Thomson,“TheoryofVibrationwithApplications”,Taylor&Francis,2018