Resonance

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Resonance effect for various input frequencies and damping coefficients.

In physics, resonance is the tendency of a system to vibrate with increasing amplitudes at some frequencies of excitation. These are known as the system's resonant frequencies (or resonance frequencies) [1].

An example of useful effect of resonant frequency is a guitar string which makes a characteristic noise when it is touched. The noise depends on how thick or slack the string is.

In earthquake engineering, on contrary, any possibility of a resonance is detrimental for the building structure.

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References[edit]

  1. Tongue, Benson, Principles of Vibration, Oxford University Pres, 2001, ISBN 0-195-142462