Title: Modal properties of the flexural vibrating package of rods linked by spacer grids
Authors: Zeman, Vladimír
Hlaváč, Zdeněk
Citation: Applied and Computational Mechanics. 2011, vol. 5, no. 1, p. 111-122.
Issue Date: 2011
Publisher: University of West Bohemia
Document type: článek
URI: http://www.kme.zcu.cz/acm/index.php/acm/article/view/115/95
ISSN: 1802-680X (Print)
2336-1182 (Online)
Keywords: distanční mřížky;modelování vibrací;modální veličiny
Keywords in different language: spacer grids;modelling of vibrations;modal values
Abstract: The paper deals with the modelling and modal analysis of the large package of identical parallel rods linked by transverse springs (spacer grids) placed on several level spacings. The rod discretization by finite element method is based on Rayleigh beam theory. For the cyclic and central symmetric package of rods (such as fuel rods in nuclear fuel assembly) the system decomposition on the identical revolved rod segments was applied. A modal synthesis method with condensation is used for modelling of the whole system. The presented method is the first step for modelling the nuclear fuel assembly vibration caused by excitation determined by the support plate motion of the reactor core.
Rights: © 2011 - University of West Bohemia. All rights reserved.
Appears in Collections:Volume 5, number 1 (2011)
Články / Articles (KME)
Volume 5, number 1 (2011)

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/1367

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