Gif image animations about acoustic and vibration by Dan Russel, PhD
Animations :
Airborne Sound Waves and Sources
Basic Wave Phenomena
* What is a Wave?
* Wave Motion in Space and Time
* Superposition of Two Waves
* Fourier Decomposition
* Phase changes upon reflection from hard, soft, and mixed boundaries
* Refraction of Sound Waves
* The Doppler Effect
Sound Waves and Radiation from Sources
* Longitudinal and Transverse Waves
* Sound Fields Radiated by Simple Sources
* Sound Radiation from Cylindrical Radiators
* Sound field radiated by a Tuning Fork
* The Baffled Piston
More Complicated Wave Phenomena
* Evanescent Modes in Waveguides
* Waves in Dispersive Media
* Examples of Dispersive Waves
* Collision Between Two Solitary Waves
Room Acoustics
* Driving room modes & source location
* Reverberation Times in a small room
Vibration and Structural Waves
Vibration of 1-DOF Simple Oscillators
* Comparing Circular and Sinusoidal Motion
* Simple Harmonic Oscillator
* Damped Harmonic Oscillator
* Phase-Space Diagrams for an Oscillator
* Forced Harmonic Oscillator
* Base Motion
* The Simple Pendulum
Vibration of Multi-DOF Systems
* Coupled Oscillators
* Dynamic Absorbers
* Vibrational modes of a multi-dof system
Vibrational Modes of Continuous Systems
* Vibrational Modes of a Hanging Chain
* Vibration of a Fixed-Fixed String
* Rectangular Membrane
* Circular Membrane
* Flexural Vibrations of a Beam
* Vibration of Baseball Bats
* Bending and Torsional Vibration in a Hockey Stick
* Vibration Modes of a Glass Beer Bottle
* Vibrational Modes of an Electric Guitar
* Vibrational Modes of an Acoustic Guitar
* Tacoma Narrows Bridge
* Motion of the Center-of-Mass
Other Wave Phenomena (not acoustics, but still waves)
Optical Ray Tracing
* Ray Tracing for Mirrors
* Ray Tracing for Lenses
* Diffraction
Light as an Electromagnetic Wave
* Double Slit Interference
Human Sight – How the Eye Works
* How We See: The First Steps of Human Vision – Diane M. Szaflarski, Ph.D
* Check out some neat optical illusions at Illusions Works and The Science Museum of London
Matter Waves (Particle-Wave Duality)
* Atomic Spectra (Emission and Absorption)
* When Particles Behave Like Waves (in 2-D)
* Double Slit Interference for Particles!
Download : link
[...] PART 2: ONE-DIMENSIONAL WAVE MOTION TRANSVERSE VIBRATIONS OF STRINGS Introduction What is a wave equation? One dimensional Case Characterization of the mechanical system TIME-DOMAIN SOLUTIONS d’Alembert Solutions Example of Time Domain Solution BOUNDARY CONDITIONS AND FORCED VIBRATIONS Boundary Conditions Wave Properties Forced Vibrations [...]