6.1.7

Resonance

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Resonance

When a new frequency is applied to an oscillating system the amplitude of oscillation will change.

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Resonance

  • If the applied frequency is close to the natural frequency, resonance will occur and the amplitude will be at a maximum.
  • If the applied frequency is different from the natural frequency the amplitude will be reduced to almost nothing.
Illustrative background for Resonance curves Illustrative background for Resonance curves  ?? "content

Resonance curves

  • The amplitude of oscillations can be plotted against applied frequency to give a resonance curve.
  • It is easy to see that the closer the applied frequency is to the natural frequency the larger the amplitude.
  • The effect of damping is also clear, the more damping the smaller the amplitude and the wider the resonance peak.

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