scholarly journals Multimode vibration analysis with high-speed TV holography and a spatiotemporal 3D Fourier transform method

2009 ◽  
Vol 17 (20) ◽  
pp. 18014 ◽  
Author(s):  
Cristina Trillo ◽  
Ángel F. Doval ◽  
Fernando Mendoza-Santoyo ◽  
Carlos Pérez-López ◽  
Manuel de la Torre-Ibarra ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Vibration Analysis ◽  
High Speed ◽  
Transform Method ◽  
Fourier Transform Method

Research on Vibratory Behavior Assessment and Maintenance of Drilling and Threading Machine VA20A

2013 ◽  
Vol 436 ◽  
pp. 205-212 ◽  
Author(s):  
Mikuláš Hajduk ◽  
Dan Florin Niculescu ◽  
Adrian Olaru ◽  
Marek Vagaš ◽  
Adrian Ghionea
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Vibration Analysis ◽  
Direct Impact ◽  
Vibration Level ◽  
Transform Method ◽  
Fourier Transform Method ◽  
Entire Structure ◽  
Fast Fourier Transform Method ◽  
Spectral Components

Vibrations due to mechanical defects,are transmitted within the entire structure of the equipment, are amplified during its dynamical operation, having a direct impact on the accuracy of the processed surfaces. Spectral components need vibration analysis is required. In order to determine the operation state and the vibration level caused by the mechanical failures , the FFT (Fast Fourier Transform Method) method has been used. The vibrations measurements is repeated at constant intervals; It specify the measured vibration limits; It compares the values in ISO-sites exist for determining optimal predictive maintenance intervals.

High-speed fan-beam reconstruction using direct two-dimensional fourier transform method

1985 ◽  
Vol 16 (3) ◽  
pp. 48-55 ◽  
Author(s):  
Noboru Niki ◽  
Toshio Mizutani ◽  
Yoshizo Takahashi ◽  
Tamon Inouye
Keyword(s):  
Fourier Transform ◽  
High Speed ◽  
Two Dimensional ◽  
Transform Method ◽  
Fourier Transform Method
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