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Module 1 - Physical Acoustics

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Intro  ::  Acoustics  ::  Vibration  ::  Waves  ::  Resonance

Vibrating Systems

Physical systems that vibrate will do so at one or more unique frequencies. In this chapter you will learn about simple harmonic motion, vibrating systems, complex vibrating systems, and you will be introduced to vibration in musical instruments.

To successfully complete this chapter you should...

  • Read chapter 2 in your text book (pages 19 - 32).
  • Carefully study the important concepts.
  • Be able to determine the frequency of vibration for simple harmonic motion of different systems.
  • Be able to describe the motion of complex vibrating systems as harmonic or non-harmonic.

Important Concepts

Simple harmonic motion
Mass-spring system
Pendulum
Spring of air
Helmholtz resonator
Multiple mass systems
Degrees of freedom
Vibrational modes
Vibrating bodies
Vibrating strings
Vibrating membrane
Vibrating bar
Vibrating plate
Air-filled pipe
Modes
Complex vibration

Animations

Mass-String (SWF)
Mass-Spring (SWF)
Pendulum (SWF)

Copyright 2008, by the Contributing Authors. Cite/attribute Resource. admin. (2005, January 25). Module 1 - Physical Acoustics. Retrieved November 07, 2009, from Free Online Course Materials — USU OpenCourseWare Web site: http://ocw.usu.edu/Electrical_and_Computer_Engineering/Science_of_Sound/Module_1_-_Physical_Acoustics.htm. This work is licensed under a Creative Commons License. Creative Commons License
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