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

[@TheyCallMeApplePie]

Extremely informative! Thank you 😊

[@nhtcgu2664]

Thanks for uploading this.
Can you please do an example of extracting mode shapes using an impact hammer on a structure?

[@SrinathSrinivasan]

I had done some examples of mode shapes in general. You can watch them here : czcams.com/play/PLTkzvdFCLGkjrGqSw_C5J7iduYqwkVcZj.html

[@nhtcgu2664]

@@SrinathSrinivasan Thanks!!

[@neonnnXD]

Hows this any different from a transfer function??

[@SrinathSrinivasan]

A transfer function is basically output/input. FRF is a measure of how the transfer function varies with respect to frequency.