Resonance
Tsokos Ch. 9.6
Overview
Resonance occurs when the driving frequency equals the natural frequency of the system → amplitude reaches maximum. In lightly damped systems, the amplitude at resonance is very large. Damping: (1) reduces amplitude at all frequencies, (2) shifts the resonance peak slightly lower, (3) broadens the resonance curve. Examples: Tacoma Narrows Bridge, tuning a radio.