Mathematical modelling of friction-vibration interactions of nuclear fuel rods

Authors

  • Vladimír Zeman NTIS – New Technologies for Information Society, Faculty of Applied Sciences, University of West Bohemia
  • Zdeněk Hlaváč NTIS – New Technologies for Information Society, Faculty of Applied Sciences, University of West Bohemia

Keywords:

nuclear fuel rod, friction-vibration interactions, friction work, fretting wear

Abstract

Nuclear fuel rods (FRs) are transverselly linked to each other by three spacer grid cells at several vertical levels inside a fuel assembly (FA). Vibration of FA components, caused by the motion of FA support plates in the reactor core, generates variable contact forces between FRs and spacer grid cells. Friction effects in contact surfaces have an influence on the expected lifetime period of nuclear FA in terms of FR cladding fretting wear. This paper introduces an original approach to mathematical modelling and simulation analysis of FR nonlinear vibrations and fretting wear taking into consideration friction forces at all levels of spacer grids.

Author Biography

  • Vladimír Zeman, NTIS – New Technologies for Information Society, Faculty of Applied Sciences, University of West Bohemia
    The professional CV of the Associate Editor can be found here.

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Published

30-Jun-2016

Issue

Vol. 10 No. 1 (2016)

Section

Articles

License

Copyright (c) 2016 Applied and Computational Mechanics

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

“Mathematical modelling of friction-vibration interactions of nuclear fuel rods” (2016) Applied and Computational Mechanics, 10(1). Available at: https://acm.kme.zcu.cz//article/view/305 (Accessed: 24 May 2025).