Measurement of the bending vibration frequencies of a rotating turbo wheel using an optical fibre reflective sensor
Slavič, Janko (Author), Čermelj, Primož (Author), Babnik, Aleš (Author), Rejec, Jožica (Author), Možina, Janez (Author), Boltežar, Miha (Author)

URLURL - Presentation file, Visit http://stacks.iop.org./0957-0233/13/477 This link opens in a new window

An optical fibre reflective sensor was used to analyse the vibrations of a rotating turbo wheel up to 20400 rpm. The measured signal required correction because of the natural unevenness of the turbo wheel and because of the variable deflection. Because the turbo wheel was rotating the signal became distorted and so we used a special method to extract the frequencies of the vibrations from the power spectra. The analysis showed increased intensity of the first three natural frequencies with an increased speed of rotation. The experimental results match very well with those obtained by numerical computation.

Keywords:rotating turbo wheel, disc, natural frequency, frequency extraction, optical fibre, distortion
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Number of pages:str. 477-482
Numbering:Vol. 13, no. 4
ISSN on article:0957-0233
COBISS.SI-ID:4901915 Link is opened in a new window
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Record is a part of a journal

Title:Measurement science & technology
Shortened title:Meas. sci. technol.
Publisher:IOP Publishing
COBISS.SI-ID:6000901 This link opens in a new window

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