Abstract
This paper will present a discussion as to how the Fourier transform and/or frequency response function generated by spectrum analyzers can be used to gain insight and an understanding of the dynamic properties of noise and/or vibrational problems. A single degree of freedom (spring‐mass‐damper) system will be used as the focal point of this discussion. We will present a heuristic discussion of the frequency response function of this single degree of freedom system and show how its dynamic properties can be directly related to the graphical characteristics of the frequency response function. We will also examine how the coherence function can be used as a measure of the “goodness” of the frequency response function.
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