Mechanical - Acoustics (English)

   Wednesday, May 07, 2025   

Starting a new Lecture Notes Series on Mechanical - Acoustics

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Mechanical - Acoustics By Lecture Notes together!

Lecture 1: Intro, sound wave versus vibration, different types of waves, octave, music scales, sense of SPL

Lecture 2: Review: Linearity, complex numbers, and spring mass system

Lecture 3: Review: Poles and zeroes, phase and magnitude plots, transfer functions, Bode plots

Lecture 4: Review: Transfer functions, and Bode plots

Lecture 5: 1-D wave equation, and its solution

Lecture 6: Solution for 1-D wave equation

Lecture 7: Waveguides, transmission line equations, and standing waves

Lecture 8: Waveguides,transmission line equations, and standing waves

Lecture 9: Examples of 1-D waves in tubes, short tubes, Kundt's tube

Lecture 10: Thermodynamic processes during sound transmission

Lecture 11: Numerical examples

Lecture 12: Sound transmission through walls

Lecture 13: Sound transmission through walls

Lecture 14: Leakage in walls, STC Ratings, Octave bands

Lecture 15: Instantaneous power flow

Lecture 16: Radial propagation of sound, monopoles, and dipoles - 1

Lecture 17: Radial propagation of sound, monopoles, and dipoles - 2

Lecture 18: Radial propagation of sound, monopoles, and dipoles - 3

Lecture 19: Numerical examples

Lecture 20: Numerical examples

Lecture 21: Mod-05 Lec-01 Directivity

Lecture 22: Mod-05 Lec-02 Directivity

Lecture 23: Mod-05 Lec-03 Directivity

Lecture 24: Mod-05 Lec-04 Directivity

Lecture 25: Generalized elements

Lecture 26: Examples of electromechanical systems

Lecture 27: Transformers, radiation impedance, and Helmholtz resonator

Lecture 28: Radiation impedance

Lecture 29: Radiation impedance

Lecture 30: Models of electro-mechanical-acoustic systems

Lecture 31: Solution for a loudspeaker model

Lecture 32: Microphones

Lecture 33: Vibro-meter, seismometer, accelerometer, shaker table

Lecture 34: Sound propagation in rooms, 1-D rooms, 2D rooms

Lecture 35: Sound in 3-D rooms

Lecture 36: Absorption coefficient, and irregular rooms

Lecture 37: Room constant, and Sabine's coefficient

Lecture 38: Design of a muffler

Lecture 39: Noise in machines, basics of noise management