Introduction to Engineering Acoustics

Prof. Dr.-Ing. Dieter Kraus

1. Fundamentals of Oscillations (pdf)
   1.1 Harmonic Oscillations
   1.2 Superposition of Oscillations
        1.2.1 Superposition of harmonic Oscillations of the same Frequency
        1.2.2 Superposition of harmonic Oscillations of different Frequencies
        1.2.3 Fourier Analysis
   1.3 Mechanical Impedance
   1.4 Mechanical Resonance Systems
   1.5 Active Power of a Force that is acting on a Oscillation System

2. Sound Field Parameters and Wave Equation in fluid Media (pdf)
   2.1 Sound Field Quantities
   2.2 Wave Equation

3. Plane Waves in fluid Media (pdf)
   3.1 Solution of the Wave Equation
   3.2 Characteristic Wave Impedance 
   3.3 Harmonic Plane Waves
   3.4 Sound Velocity
   3.5 Intensity
   3.6 Sound Level Quantities
   3.7 Sound Level Calculation
        3.7.1 Superposition of coherent Sound Waves
        3.7.2 Superposition of incoherent Sound Waves
   3.8 Propagation Loss

4. Spherical Waves (pdf)   
   4.1 Introduction
   4.2 Harmonic Spherical Waves
   4.3 Power of a Point Sound Source
   4.4 Radiation Impedance
   4.5 Doppler Effect
        4.5.1 Source stays, Receiver is moving
        4.5.2 Receiver stays, Source is moving
        4.5.3 Receiver und Source are moving
        4.5.4 Source is moving with Supersonic Speed

5. Synthesis of Sound Sources (pdf)   
   5.1 Fundamentals
   5.2 Radiating Dipol
   5.3 Straight Line Radiator Array
   5.4 Circular Piston Membrane

6. Reflection, Refraction und Diffraction (pdf)
   6.1 Elementary Wave
   6.2 Reflection
   6.3 Refraction
   6.4 Deffraction
   6.5 Reflection and Transmission Coefficient

7. Acoustic Waveguides (pdf)
   7.1 Transmission Equation
   7.2 Transmission Lines with discontinuously changing Cross Sections
        7.2.1 Single Cross-Sectional Jump
        7.2.2 Double Cross-Sectional Jump
   7.3 Transmission Lines with continuously changing Cross Sections
        7.3.1 Introduction
        7.3.2 Conical Horn
        7.3.3 Exponential Horn
   7.4 Higher Wave Modes
        7.4.1 Parallele Planes
        7.4.2 Rectangular Waveguide
   7.5 Dispersion

8. Geometrical Acoustics (pdf)
   8.1 Homogeneous Waveguides
   8.2 Inhomogeneous Waveguides
        8.2.1 Ray Paths through layers of constant Sound Velocity
        8.2.2 Ray Paths in a continuously varying Sound Velocity Profile