Incorporation of a vapour cavitation in short lemon hydrodynamical bearings with a deep central groove into computational models of rotor systems - response on unbalance excitation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F04%3A00010506" target="_blank" >RIV/61989100:27230/04:00010506 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Incorporation of a vapour cavitation in short lemon hydrodynamical bearings with a deep central groove into computational models of rotor systems - response on unbalance excitation
Original language description
Incorporation of a vapour cavitation into the computational models of fluid film bearings assumes that two kinds of areas exist in the bearing gap. In noncavitated regions a hydrodynamical effect is developed. In cavitated areas the pressure remains constant. To be conserved the continuity of flow the pressure gradient must be zero on common borders between both regions. If the bearing with a deep central groove can be considered as short, then the pressure distribution taking into account a vapor cavitation can be expressed by analytical relationships. For solution of the equation of motion a modified Newmark method has been adopted.
Czech name
Zahrnutí párové kavitace i v krátkých hydrodynamických ložiskách s hlubokou centrální drážkou do výpočetních modelů rotorových soustav - odezva na buzení nevývahou
Czech description
Incorporation of a vapour cavitation into the computational models of fluid film bearings assumes that two kinds of areas exist in the bearing gap. In noncavitated regions a hydrodynamical effect is developed. In cavitated areas the pressure remains constant. To be conserved the continuity of flow the pressure gradient must be zero on common borders between both regions. If the bearing with a deep central groove can be considered as short, then the pressure distribution taking into account a vapor cavitation can be expressed by analytical relationships. For solution of the equation of motion a modified Newmark method has been adopted.
Classification
Type
D - Article in proceedings
CEP classification
JR - Other machinery industry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA101%2F02%2F0011" target="_blank" >GA101/02/0011: New approach to the analysis of dynamic behaviour of nonlinear coupling elements using in rotor dynamic systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Engineering Mechanics 2004
ISBN
80-85918-88-9
ISSN
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e-ISSN
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Number of pages
10
Pages from-to
1-10
Publisher name
Institute of Thermomechanics - Academy of Science
Place of publication
Praha
Event location
Svratka
Event date
May 10, 2004
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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