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Conference Papers Year : 2018

Model Validation for the RBC-type Control Rods in ASTRID during Seismic Activities

Abstract

The purpose of this paper is to compare methods for analyzing the interaction of a rod with a stiff sleeve. This is shown via the application to the RBC-type control rods for the ASTRID fast reactor. Current motivations are to replace experimental testing that was performed on previously designed reactors with a computationalmodel to allow for appropriate estimations in a timely manor to be used during the design phase of the development. The methods used include the use of a finite element model and a newly developed tool that uses an analytical representation of the beam. This tool currently contains a static solver using the Breese'sformulations and some preliminary work for a dynamic solver using the Euler-Bernoulli representation. The static solver is compared to the finite element model used in previous work on this example system, while the dynamic solver compares the modal information to the Eigen-solution via finite elements. Results from thesecomparisons show very good agreement between the methods. This work signifies the current progress of an ongoing project to produce an accurate, analytically based tool for design engineers to predict mechanical coupling during vibration events such as seismic activities.
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Dates and versions

cea-02400206 , version 1 (21-02-2020)
cea-02400206 , version 2 (05-03-2020)

Identifiers

  • HAL Id : cea-02400206 , version 1

Cite

M. Bonney, M. Zabiego. Model Validation for the RBC-type Control Rods in ASTRID during Seismic Activities. ISMA2018 International Conference on Noise and Vibration Engineering, Sep 2018, Leuven, Belgium. ⟨cea-02400206v1⟩
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