Naslov
Influence of Clearance in Insufficiently Lubricated Bearings on Natural Frequencies of Rotor

Autori
Butković, Mirko ; Žigulić, Roberto ; Braut, Sanjin

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

Izvornik
Proceedings of the 17^th “Danubia – Adria” Symposium on Experimental Methods in Solid Mechanics / Stanislav Holy, Jiri Maštovski, Karel Vitek - Prag : Czech technical university in Prague, 2000, 51-57

Skup
The 17^th “Danubia – Adria” Symposium on Experimental Methods in Solid Mechanics

Mjesto i datum
Prag, Češka Republika, 11.10.2000. - 14.10.2000

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Rotor; Insufficient Lubrication; Clearance; Natural Frequencies; FEM

Sažetak
Turbomachinery rotors can be severely damaged by loosing several blades. In that case rotor has large unbalance forces, and during run down passes through critical speeds which increase even large forces. Bearing can be damaged through increase of clearance and loss of oil. Severe rubbing can occur and complete disintegration can be expected. To overcome secondary consequences, turbomachines have to be designed against disintegration of bearing caps and pedestals. One of the steps in solving this problem is knowing critical speeds with increased clearances in bearings and bearings without oil. Computational analysis and measurements on test rotor are undertaken.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA