Difference between revisions of "Resonance"

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==Resonating Chambers==
 
==Resonating Chambers==
  
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Resonating Chambers are specially shaped housings which trap air in a particular shape. The shape of the air column is designed to have a specific natural frequency, and when the air in the chamber is excited, it will resonate, reflect between the sides of the chamber, and produce sounds. Sound waves exit the chamber, and these are the sound waves that we perceive, but [[standing waves]] are produced in the chamber due to the reflection and resonance. The design of resonating chambers is paramount in the creation of almost all wind instruments.
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Revision as of 14:16, 5 August 2011

Inprogress.png
Resonance
Clarinet.jpg
Field: Dynamic Systems
Image Created By: Jeffrey Disharoon
Website: [1]

Resonance

A picture of a clarinet, an instrument that utilizes a vibrating reed and a resonating chamber to produce sounds.


Basic Description

Resonance is a sound phenomenon in which sounds with particular frequencies are amplified more than other sounds in a system. The system could be anything from a solid structure such as a steel beam, to a trapped column of air. In a resonant system, the specific frequencies which cause the highest amplitude are those which match the natural frequency of the system.

Natural Frequency

The natural frequency of a system is the frequency at which the system vibrates naturally when set into motion. This frequency often corresponds to the length and shape of the system. For instance, skyscrapers and bridges have natural frequencies whose wavelengths correspond to their height and length respectively. For this reason, engineers who build structures like this must be very careful in their designs. If too many components of such structures resonate at the same frequency, then the amplitude could become great enough to cause structural damage or failure. Such was the case of the Tacoma Narrows Bridge in 1940.

[2]

Resonating Chambers

Resonating Chambers are specially shaped housings which trap air in a particular shape. The shape of the air column is designed to have a specific natural frequency, and when the air in the chamber is excited, it will resonate, reflect between the sides of the chamber, and produce sounds. Sound waves exit the chamber, and these are the sound waves that we perceive, but standing waves are produced in the chamber due to the reflection and resonance. The design of resonating chambers is paramount in the creation of almost all wind instruments.





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About the Creator of this Image

Jeffrey Disharoon; Tyler Sammann

References








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