Title: Estimation of the nuclear fuel assembly eigenfrequencies in the probability sense
Authors: Zeman, Vladimír
Hlaváč, Zdeněk
Citation: Applied and Computational Mechanics. 2014, vol. 8, no. 2, p. 229-236.
Issue Date: 2014
Publisher: University of West Bohemia
Document type: článek
URI: http://www.kme.zcu.cz/acm/acm/article/view/278/305
ISSN: 1808-680X (Print)
2336-1182 (Online)
Keywords: nukleární palivový článek;vlastní frekvence;náhodné parametry;matematické modelování
Keywords in different language: nuclear fuel assembly;eigenfrequency;random parametres;mathematical modelling
Abstract: The paper deals with upper and lower limits estimation of the nuclear fuel assembly eigenfrequencies, whose design and operation parameters are random variables. Each parameter is defined by its mean value and standard deviation or by a range of values. The gradient and three sigma criterion approach is applied to the calculation of the upper and lower limits of fuel assembly eigenfrequencies in the probability sense. Presented analytical approach used for the calculation of eigenfrequencies sensitivity is based on the modal synthesis method and the fuel assembly decomposition into six identical revolved fuel rod segments, centre tube and load-bearing skeleton linked by spacer grids. The method is applied for the Russian TVSA-T fuel assembly in the WWER1000/320 type reactor core in the Czech nuclear power plant Temelín.
Rights: © 2014 University of West Bohemia. All rights reserved.
Appears in Collections:Volume 8, number 2 (2014)
Články / Articles (KME)
Volume 8, number 2 (2014)

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/11960

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