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Last updated:

September 21, 2023

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FREE

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Description

Acoustics. Instructor: Prof. Nachiketa Tiwari, Department of Mechanical Engineering, IIT Kanpur.

This course discusses topics in acoustics: acoustics fundamentals, terminology, 1-D wave equation in Cartesian coordinates and in spherical coordinates, transmission line equations, electromechanical transduction and mechano-acoustic transduction using lumped parameter approach, modeling of complex electro-magnetic-mechanical-acoustic systems, sound radiation, propagation and attenuation of sound, waveguides, and the interplay between vibrations and acoustics. (from nptel.ac.in)

Course Curriculum

    • Lecture 01 – Introduction, Sound Wave vs Vibration, Different Types of Waves Unlimited
    • Lecture 02 – Review: Linearity, Complex Numbers and Spring Mass System Unlimited
    • Lecture 03 – Review: Poles and Zeros, Phase and Magnitude Plots, Transfer Functions, Bode Plots Unlimited
    • Lecture 04 – Review: Transfer Function and Bode Plots Unlimited
    • Lecture 05 – 1-D Wave Equation and its Solution Unlimited
    • Lecture 06 – Solution for 1-D Wave Equation Unlimited
    • Lecture 07 – Waveguides, Transmission Line Equations and Standing Waves Unlimited
    • Lecture 08 – Waveguides, Transmission Line Equations and Standing Waves (cont.) Unlimited
    • Lecture 09 – Examples of 1-D Waves in Tubes, Short tubes, Kundt’s Tube Unlimited
    • Lecture 10 – Thermodynamic Processes during Sound Transmission Unlimited
    • Lecture 11 – Numerical Examples 1 Unlimited
    • Lecture 12 – Sound Transmission through Walls Unlimited
    • Lecture 13 – Sound Transmission through Walls (cont.) Unlimited
    • Lecture 14 – Leakage in Walls, Sound Transmission Class Ratings, Octave Bands Unlimited
    • Lecture 15 – Instantaneous Power Flow Unlimited
    • Lecture 16 – Radial Propagation of Sound, Monopoles, and Dipoles Unlimited
    • Lecture 17 – Radial Propagation of Sound, Monopoles, and Dipoles (cont.) Unlimited
    • Lecture 18 – Radial Propagation of Sound, Monopoles, and Dipoles (cont.) Unlimited
    • Lecture 19 – Numerical Examples 2 Unlimited
    • Lecture 20 – Numerical Examples 3 Unlimited
    • Lecture 21 – Directivity: Expression of Pressure Unlimited
    • Lecture 22 – Directivity of Different Sound Sources Unlimited
    • Lecture 23 – Directivity Pattern associated with Sound Sources Unlimited
    • Lecture 24 – Directivity Pattern associated with the Doublet Unlimited
    • Lecture 25 – Generalized Elements Unlimited
    • Lecture 26 – Examples of Electromechanical Systems Unlimited
    • Lecture 27 – Transformers, Radiation Impedance, and Helmholtz Resonator Unlimited
    • Lecture 28 – Radiation Impedance Unlimited
    • Lecture 29 – Radiation Impedance (cont.) Unlimited
    • Lecture 30 – Models of Electromechanical Acoustics System Unlimited
    • Lecture 31 – Solution of Loudspeaker Model Unlimited
    • Lecture 32 – Microphones Unlimited
    • Lecture 33 – Vibrometer, Seismometer, Accelerometer, Shaker Table Unlimited
    • Lecture 34 – Sound Propagation in Rooms, 1-D Rooms, 2-D Rooms Unlimited
    • Lecture 35 – Sound in 3D Rooms Unlimited
    • Lecture 36 – Absorption Coefficient, and Irregular Rooms Unlimited
    • Lecture 37 – Room Constant, and Sabine’s Coefficient Unlimited
    • Lecture 38 – Design of a muffler Unlimited
    • Lecture 39 – Noise in Machines, Basics of Noise Management Unlimited

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