Impact Dynamics in Four-Segment Tilting Pad Journal Bearings Subjected to Pad Fluttering

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F21%3A43962985" target="_blank" >RIV/49777513:23520/21:43962985 - isvavai.cz</a>
Result on the web
<a href="https://asmedigitalcollection.asme.org/IDETC-CIE/proceedings-abstract/IDETC-CIE2021/85475/V010T10A021/1128256" target="_blank" >https://asmedigitalcollection.asme.org/IDETC-CIE/proceedings-abstract/IDETC-CIE2021/85475/V010T10A021/1128256</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/DETC2021-70457" target="_blank" >10.1115/DETC2021-70457</a>

Result language
angličtina
Original language name
Impact Dynamics in Four-Segment Tilting Pad Journal Bearings Subjected to Pad Fluttering
Original language description
This paper presents a transient analysis of the motion of unloaded upper pads in a tilting pad journal bearing. It is known that such pads can exhibit self-excited vibration called pad fluttering, which can initiate fatigue damage due to elastic contacts between the fluttering pad and the journal. Unlike previous studies, this work attempts to evaluate forces in the contact. This evaluation is done using a robust nonlinear model, which considers hydrodynamic lubrication, out-of-balance forces and Hertzian contacts. Furthermore, qualitative changes of the bearing’s components motions are analysed in a wide range of journal speeds using bifurcation diagrams, phase portraits and estimates of the largest Lyapunov coefficients. The analysis reveals the intriguing nature of the system, which bifurcates between the periodic motion, period-doubling and chaos.
Czech name
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Czech description
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Project
<a href="/en/project/EF17_048%2F0007267" target="_blank" >EF17_048/0007267: Research and Development of Intelligent Components of Advanced Technologies for the Pilsen Metropolitan Area (InteCom)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the ASME 2021 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 10: 33rd Conference on Mechanical Vibration and Sound (VIB)
ISBN
978-0-7918-8547-5
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
1-9
Publisher name
American Society of Mechanical Engineers (ASME)
Place of publication
New York
Event location
Virtual, Online
Event date
Aug 17, 2021
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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