Analysis of influence of short magnetorheological damping elements on vibrations attenuation of rigid rotors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F15%3A86094845" target="_blank" >RIV/61989100:27230/15:86094845 - isvavai.cz</a>
Alternative codes found
RIV/61388998:_____/15:00451913 RIV/61989100:27740/15:86094845
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Analysis of influence of short magnetorheological damping elements on vibrations attenuation of rigid rotors
Original language description
A frequently used technological solution for reducing lateral vibrations of rotating machines as a result of their unbalance consists in adding damping devices to the rotor supports. To achieve their optimum performance their damping effect must be adaptable to the current operating conditions. This is offered by magnetorheological squeeze film dampers. Magnetorheological oils belong to the class of liquids with a yielding shear stress. In the developed mathematical model of a short magnetorheological squeeze film damper the lubricant is represented by Bingham material. Then the pressure distribution in the lubricating layer is governed by the Reynolds equation adapted for Bingham fluid. The yielding shear stress depends on magnetic induction. Its stationary value can be approximated by a power function and its dependence on its time history in the past (characterized by a time constant) by a convolution integral that is consequently transformed to a linear differential equation of the
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JR - Other machinery industry
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
COMPDYN 2015: Computational Methods in Structural Dynamics and Earthquake Engineerin. Volume 1 + 2
ISBN
978-960-99994-7-2
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
1941-1948
Publisher name
National Technical University of Athens
Place of publication
Atheny
Event location
Hersonissos, Kréta
Event date
May 25, 2015
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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