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## Main Question or Discussion Point

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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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

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.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

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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