Pregled bibliografske jedinice broj: 99298
Influence of bearing dry friction on rotor nonlinear vibrations
Influence of bearing dry friction on rotor nonlinear vibrations // Proceedings of the 18th Danubia – ; Adria Symposium on Experimental Methods in Solid Mechanics / Beer, Rudolf (ur.).
Steyr: Austrian Society of Experimental Strain Analysis, 2001. str. 163-164 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), ostalo)
CROSBI ID: 99298 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Influence of bearing dry friction on rotor nonlinear vibrations
Autori
Žigulić, Roberto ; Jakšić, Nikola ; Boltežar, Miha ; Butković, Mirko
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo
Izvornik
Proceedings of the 18th Danubia – ; Adria Symposium on Experimental Methods in Solid Mechanics
/ Beer, Rudolf - Steyr : Austrian Society of Experimental Strain Analysis, 2001, 163-164
Skup
18th Danubia – ; Adria Symposium on Experimental Methods in Solid Mechanics
Mjesto i datum
Steyr, Austrija, 26.09.2001. - 29.09.2001
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Rotordynamics; dry friction bearings
Sažetak
The proposed nonlinear model of influence of bearing dry friction on rotor nonlinear vibrations shows good agreement with experimental results. Rotor is, due its weight, in permanent contact with vibrating stator except in the vicinity of vertical and horizontal rotor resonance where due to vibrations, rotor constantly enters and exits from the contact Cascade diagrams of this model indicates dominant synchronous motion with unbalance excitation which means that the rotor weight and internal damping influence (1/2 and harmonics of higher orders) can be neglected. By nonlinear model approximately 1 to 1.5 Hz lower natural frequencies are obtained related to measured natural frequencies. The difference would be smaller if better discretisation of FEM model was used.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
