DYNAMICS OF A ROTOR SYSTEM SUPPORTED BY RADIAL ACTIVE MAGNETIC BEARINGS UNDER UNDESIRABLE OPERATING CONDITIONS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F08%3A00019855" target="_blank" >RIV/61989100:27690/08:00019855 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

DYNAMICS OF A ROTOR SYSTEM SUPPORTED BY RADIAL ACTIVE MAGNETIC BEARINGS UNDER UNDESIRABLE OPERATING CONDITIONS

Original language description

In order to correctly diagnose faults, the basic dynamic behaviour of a rotor system supported by active magnetic bearings with a fatigue crack must be first studied, since many differences in the responses between conventional and active rotor systems exist. The submitted paper presents investigation of a rotor system with one transverse fatigue crack and with two transverse fatigue cracks. The influence of breathing cracks on the steady-response of a rotor system excited by centrifugal forces and by aharmonic kinematic excitation is shown through computer simulations. The partial opening and closing of cracks is considered by means of status of stress intensity factor along cracks edges. The response of the rotor system is obtained by direct integration of equations of motion. The influence of the different depths of cracks is investigated with help of frequency spectra, time domain responses and orbit plots.

Czech name

DYNAMICS OF A ROTOR SYSTEM SUPPORTED BY RADIAL ACTIVE MAGNETIC BEARINGS UNDER UNDESIRABLE OPERATING CONDITIONS

Czech description

In order to correctly diagnose faults, the basic dynamic behaviour of a rotor system supported by active magnetic bearings with a fatigue crack must be first studied, since many differences in the responses between conventional and active rotor systems exist. The submitted paper presents investigation of a rotor system with one transverse fatigue crack and with two transverse fatigue cracks. The influence of breathing cracks on the steady-response of a rotor system excited by centrifugal forces and by aharmonic kinematic excitation is shown through computer simulations. The partial opening and closing of cracks is considered by means of status of stress intensity factor along cracks edges. The response of the rotor system is obtained by direct integration of equations of motion. The influence of the different depths of cracks is investigated with help of frequency spectra, time domain responses and orbit plots.

Type

D - Article in proceedings

CEP classification

JR - Other machinery industry

OECD FORD branch

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Project

<a href="/en/project/GP101%2F07%2FP368" target="_blank" >GP101/07/P368: Numerical modelling of vibration during of undesirable operating conditions of a rotor systems supported by active magnetic bearings</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2008

Confidentiality

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

Article name in the collection

Applied Mechanics 2008

ISBN

978-83-60102-49-7

ISSN

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e-ISSN

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Number of pages

14

Pages from-to

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Publisher name

Wydawnictwo Katerdy Mechianiki Stosowanej

Place of publication

Gliwice

Event location

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Event date

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Type of event by nationality

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UT code for WoS article

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