Počet záznamů: 1
Numerical Simulation Feedback Control Fluid-Induced Instabilities In Rotor System Supported By Hydrodynamic Bearings
- 1.
SYSNO ASEP 0335159 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Numerical Simulation Feedback Control Fluid-Induced Instabilities In Rotor System Supported By Hydrodynamic Bearings Tvůrce(i) Ferfecki, Petr (UT-L) RID
Ondrouch, Jan (UT-L)
Poruba, Z. (CZ)Zdroj.dok. Active Noise and Vibration Control Methods. - Krakow : AGH University of Science and Technology, 2009 - ISBN 83-89772-06-X Rozsah stran s. 41-50 Poč.str. 10 s. Forma vydání CD-ROM - CD-ROM Akce Conference on Active Noise and Vibration Control Methods /9./ Datum konání 24.05.2009-27.05.2009 Místo konání Zakopane Země PL - Polsko Typ akce EUR Jazyk dok. eng - angličtina Země vyd. PL - Polsko Klíč. slova active control ; rotor system ; hydrodynamic bearing instability Vědní obor RIV JR - Ostatní strojírenství CEZ AV0Z20760514 - UT-L (2005-2011) Anotace Hydrodynamic bearings are frequently used due to their large carrying capacity and favourable damping characteristics. However for the operation at higher revolutions the fluid-induced instabilities known as oil whirl and oil whip can appear. The mathematical model of the rotor system is assembled under the assumption of rigid shaft, massless bearing shells and nonlinear bearing forces determined on the base of short cylindrical bearing theory from Reynolds equation. By proposed feedback controller the movable bearing shells are directly excited by kinematic excitation. On the base of simulations it was found out that the displacement amplitude of shaft with feedback control was always reduced in the whole revolution range and the limit of oil whirl was shifted to the higher revolutions in case of properly chosen control parameters. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2010
Počet záznamů: 1