Manufacturing Technology 2017, 17(6):836-841 | DOI: 10.21062/ujep/x.2017/a/1213-2489/MT/17/6/836

Using the Fourier Transform in the Analysis of Vibration Load Tests of Heterogeneous Mechanical Systems

Václav Bittner1, Richard Tuček2, ©árka Panská1, Martin Svoboda3, Karel Jelen1
1 Faculty of Physical Education and Sport, Charles University, José Martího 31, Praha 6, Czech Republic and Faculty of Science, Humanities and Education, Technical University of Liberec, Studentská 1402/2, Liberec, Czech Republic
2 Faculty of Science, Humanities and Education, Technical University of Liberec, Studentská 1402/2, Liberec, Czech Republic
3 Faculty of Mechanical Engineering of Jan Evangelista Purkyně University in Ústí nad Labem, Na Okraji 1001, Czech Republic

The aim of this study was to find possibilities of using the Fourier transform in the analysis of vibration load tests of heterogeneous mechanical systems, especially those of a biological nature. The study applied the idea that the dispersion of a stationary stochastic signal depends on its power spectral density. We have verified that a sophisticated reduction in the spectral power of the ergodic signal may be used to filter it effectively. The proposed procedure is suitable for the detection and separation of harmonic artefacts. We have created an algorithm in the MATLAB environment and tested its functionality when analysing the vibration transfer within the human axial system.

Keywords: Signal Filtering, Vibration Analysis, Heterogeneous Systems, Fourier Transform

Published: December 1, 2017  Show citation

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Bittner V, Tuček R, Panská ©, Svoboda M, Jelen K. Using the Fourier Transform in the Analysis of Vibration Load Tests of Heterogeneous Mechanical Systems. Manufacturing Technology. 2017;17(6):836-841. doi: 10.21062/ujep/x.2017/a/1213-2489/MT/17/6/836.
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