Natural and Fundamental Frequencies

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How could you tell if you had missed one of the natural frequencies when you were finding natural frequencies above the fundamental? thnx a lot
 

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SGT
duoheer said:
How could you tell if you had missed one of the natural frequencies when you were finding natural frequencies above the fundamental? thnx a lot
Natural frequencies and fundamental frequency are different concepts. Natural frequencies are characteristics of linear systems and are associated with the transient behaviour of the system.
Fundamental and harmonic frequencies appear in the steady state of a linear system excited by a non sinusoidal periodic waveform (like a square wave) or a nonlinear system excited by a sinusoid.
 

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