Frequency Response Function (FRF) explained

A Frequency Response Function (FRF) is a function used to quantify the response of a system to an excitation, normalized by the magnitude of this excitation, in the frequency domain. FRF is a frequency based measurement function. It is used to identify the resonant frequencies, damping and mode shapes of a physical structure. Learn more about FRF in this video.
Mode Shapes Playlist:
• Mode Shapes
Sound harmonics Video:
• Sound harmonics explained