Naslov
Comparison of a Different Implicit Time-integration Methods for the Numerical Solving of Contact Problem of the Rotor in Two Dry Friction Bearings

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

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

Izvornik
The 11th World Congress in Mechanism and Machine Science, Proceedings / Tian Huang - Tianjin : China Machine Press, 2004, 2148-2152

Skup
The 11th World Congress in Mechanism and Machine Science, Proceedings

Mjesto i datum
Tianjin, Kina, 01.04.2004. - 04.04.2004

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Rotordynamics; Generalized alpha method; Adaptive time step; Dry friction bearings

Sažetak
In the paper the determination of transient nonlinear multidisc rotor response, whirling with slip on the vibrating stator, is shown. Some results and experiences in using HHT alpha, WBZ alpha and generalized alpha method, for numerical obtaining of response of run-down rotor during the contact with vibrating stator in the dry friction bearings, are given. The numerical stability, and accuracy of these methods is compared. Special attention is paid to the possibility of using the adaptive time step calculation. Results of calculations, in the form of rotor displacement amplitudes in horizontal and vertical directions as well in the form of whirl orbits is compared with experimental results obtained on the test rig.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA