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What does FFT in vibration testing stand for?

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+2 votes
in Fluid Mechanics by (118k points)
What does FFT in vibration testing stand for?

(a) Fast Fourier Transformation

(b) Fast Foil Temperature

(c) Fast Foil Transformation

(d) Feature Fourier Transformation

I had been asked this question in an international level competition.

Question is from Model Testing of Partially Submerged Bodies in portion Dimensional and Model Analysis of Fluid Mechanics

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Best answer
Correct option is (a) Fast Fourier Transformation

Easy explanation: FFT stands for Fast Fourier Transformation. Depending on the pump design, housing and vibration it is measured and plotted. FFT is a spectrum which denotes each data point from minimum to maximum.

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