Contents

• 1. Noise

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  Introduction, Subjective Response to Sound, Frequency Dependent Human Response to Sound, Sound Pressure Dependent Human Response, Decibel Scale, Relationship Among Sound Intensity and Sound Pressure Level, Sound Spectra, Octave Band Analysis, Loudness, Noise, Noise Rating and Regulation, Major Sources of Noise, Industrial Noise Sources, Industrial Noise Control Strategies, Noise Control, Noise Control at the Source, Noise Control Along the Path, Noise Control at the Receiver, Solved Examples, Review Questions.
   
  2. Vibration

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  Introduction, History of Vibration, Scope of Vibrations, Important Terminology used in Vibration Analysis, Degree of Freedom, Simple Harmonic Motion (SHM), Phase Difference, Addition of Simple Harmonic Motion (SHM), Representation of SHM into complex form, Classification of Vibrations, Newton’s Second Law, D’Alembert’s Principle, Derivation of Equation of Motion for One-dimensional Vibrations, Energy Method, Rayleigh’s Method (Method of Static Deflection of Mass), Compound Pendulum, Centre of Percussion, Springs in Combination, Damped Vibrations, Viscous Damping, Dry Friction or Coulomb Damping, Hysteresis Damping or Structural Damping, Solved Examples, Review Questions.
   
  3. Forced Vibration

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  Introduction, Types of Forced Vibration, Forced Vibration with Constant Harmonic Excitation, Frequency Response Curve and Phase Angle Plot, Transmissibility and Vibration Isolation (V.I.), Forced Vibration with Rotating and Reciprocating Unbalance, Forced Vibration with Rotating Unbalance, Forced Vibration with Reciprocating Unbalance, Materials used for Isolation, Solved Examples, Review Questions.
   
  4. Two Degree of Freedom Systems

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  Introduction, Principle Mode of Vibrations, Mode Shapes, Forced Undamped Vibration of Two Degree of Freedom with Harmonic Excitation, Vibration Absorber, Many Degree of Freedom System: Exact Analysis, Influence Coefficients, Matrix Iteration Method, Solved Examples, Review Questions.
   
  5. Many Degrees of Freedom Systems

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  Introduction, Rayleigh’s Method, Dunkerley's Method, Holzer Method, Stodola’s Method, Approximate Methods for Multi-Degrees of Freedom and Continuous Systems, Approximate Methods, Rayleigh's Upper Bound Approximation for Lumped Mass System, Dunkerley's Method (Semi Empirical) Approximate Solution, Matrix Iteration Method, Estimation of Higher Mode Frequencies, Vibration of Continuous Systems, Introduction to Continuous Systems, Lateral Vibration of a Flexible Taut String, Longitudinal Vibration of Rod, Torsional Vibration of Shafts, Solution of Wave Equation, Lateral Vibration of Euler-Bernoulli Beam, Solved Examples, Review Questions.
   
  P. Paper