Modelling of the nuclear fuel assembly with impact interactions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F17%3A43932797" target="_blank" >RIV/49777513:23520/17:43932797 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Modelling of the nuclear fuel assembly with impact interactions

Original language description

The paper concerns with the modelling of vibration of the nuclear fuel assembly (FA). The model includes all possible nonlinearities to describe the FA vibration - impact forces between fuel pellets stack and the fuel rods (FRs) cladding, impact forces between guide thimbles (GTs) and spacer grids (SGs) and contact friction forces between FRs cladding and SGs cells. The method is applied for the Russian TVSA-T FA with hexagonal cross-section. The paper presents a complex modelling concept of FA vibration caused by pressure pulsations of coolant. Based on the simulated vibration, the evolution of the grid-to-rod fretting occurs in contact points between the FR cladding and SGs can be determined.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

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