Modelling of the nuclear fuel assembly components as a flexible 1D continua with inner and outer impact interactions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F17%3A43950895" target="_blank" >RIV/49777513:23520/17:43950895 - isvavai.cz</a>
Result on the web
<a href="http://multibody2017.cz/wp-content/uploads/2017/12/MBD2017_Conference_Proceedings_online.pdf" target="_blank" >http://multibody2017.cz/wp-content/uploads/2017/12/MBD2017_Conference_Proceedings_online.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Modelling of the nuclear fuel assembly components as a flexible 1D continua with inner and outer impact interactions
Original language description
The paper concerns with the modelling of vibration of nuclear fuel assembly components – fuel rods and the guide thimbles. Mechanical model includes all the relevant nonlinearities to describe the single component motion – contact forces between fuel pellets stack and the cladding or contact between the component and spacer grid cells. The multiscale model is used to estimate the excitation of the single component. Global model of reactor (highest scale model) excited by the pressure pulsations of coolant is used to determine the mounting plates motion. Linearized model of the fuel assembly (middle scale model) is used to determine the motion of surrounding spacer grid cells. Motions of these bodies are used as an input for the numerical simulation of single component motion (lowest scale model). In subsequent analyses, the fretting wear of fuel rod cladding is analysed and dynamical components of lateral deformations of the guide thimbles are estimated.
Czech name
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Czech description
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Project
<a href="/en/project/LO1506" target="_blank" >LO1506: Sustainability support of the centre NTIS - New Technologies for the Information Society</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 8th ECCOMAS Thematic Conference on MULTIBODY DYNAMICS 2017, MBD 2017
ISBN
978-80-01-06174-9
ISSN
2523-9589
e-ISSN
neuvedeno
Number of pages
6
Pages from-to
353-358
Publisher name
Nakladatelství ČVUT (CTN), Zikova 1903/4, 166 36 Praha 6 - Dejvice
Place of publication
Prague
Event location
Prague, Czech Republic
Event date
Jun 19, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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