Communications - Scientific Letters of the University of Zilina 2018, 20(4):24-28 | DOI: 10.26552/com.C.2018.4.24-28

Vibration Analysis by the Wigner-Ville Transformation Method

Jaroslav Smutny1, Viktor Nohal1, Daniela Vukusicova1, Herbert Seelmann2
1 Institute of Railway Structures and Constructions, Faculty of Civil Engineering, Brno University of Technology, Czech republic
2 Rail Data Services Austria GmbH & Co KG, Wien, Austria

This paper deals with description and application of the Wigner-Ville transformation for vibration analysis. This transformation belongs to the group of non-linear time-frequency processes. Thanks to its properties, it may be successfully used in the area of non-stationary and transitional signals describing various natural processes. The use in the field of the railway constructions testing represents a quite an interesting application area of the transformation. This paper contains mathematical analysis of the transformation, a case study and practical experience obtained and recommendations for its practical use.

Keywords: non-linear time-frequency transform; cross-component; Heisenberg uncertainty principle; vibration; railway fastening

Received: June 29, 2018; Accepted: September 28, 2018; Published: December 31, 2018  Show citation

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Smutny, J., Nohal, V., Vukusicova, D., & Seelmann, H. (2018). Vibration Analysis by the Wigner-Ville Transformation Method. Communications - Scientific Letters of the University of Zilina, 20(4), 24-28. doi: 10.26552/com.C.2018.4.24-28
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