Naslov
Spectrum tracing : A vibroacoustic technique to identify mechanisms of turbine cavitation

Autori
Bajić, Branko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Modelling, Testing & Monitoring for Hydro Powerplants III / S.n. - : The International Journal on Hydropower & Dams, 1998, 641-652

Skup
Conference Modelling, Testing & Monitoring for Hydro Powerplants III

Mjesto i datum
Aix-en-Provence, Francuska, 1998

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Sažetak
A vibroacoustic technique for identifying mechanisms of turbine cavitation is proposed. It is based on tracing differences in mean form and fine structure of cavitation noise spectra as sensed in different turbine operational conditions by differently located sensors. The applicability of the method is demonstrated by an experiment on a Francis turbine model, where one had to distinguish between three cavitation types. One cavitation pattern was fully visible and thus could be detected and described vibroacoustically and verified visually. The second could not be seen but could be detected and described vibroacoustically. The third, causing no erosion, had to be detected and described vibroacoustically but only in order to be removed from the total effect estimate.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA