Numerical simulation of feedback controlled fluid-induced instabilities in rotor system supported by hydrodynamic bearings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F10%3A86076229" target="_blank" >RIV/61989100:27230/10:86076229 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27690/10:86076229

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Numerical simulation of feedback controlled fluid-induced instabilities in rotor system supported by hydrodynamic bearings

Original language description

In certain operating conditions, the oil-film forces, by which the hydrodynamic bearings act on the rotor, destabilize and induce a self-excited vibration. In this paper several concepts based on controlled kinematic excitation of the bearing shells is investigated by computer simulation and by experimental test. The mathematical model of the uncontrolled and controlled rotor system contains the nonlinear hydrodynamic forces determined by the solution of the Reynolds equation assuming short case of bearing. The computer simulations were performed for rotor system without feedback control and with feedback controller. Results of the computer simulations proved that the analyzed approaches reduce amplitude of the rotor vibration caused by the imbalance forces. Experimental test and computer simulations demonstrate that the active vibration control increases considerably the rotation speed when the self-excited vibration of the oil-film occurred.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JR - Other machinery industry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Archives of Control Sciences

ISSN

1230-2384

e-ISSN

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Volume of the periodical

20

Issue of the periodical within the volume

3

Country of publishing house

PL - POLAND

Number of pages

15

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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