Seismic response of high temperature gas-cooled reactor core with block-type fuel. II. Three-dimensional vibration characteristics of stacked block column.:Three-Dimensional Vibration Characteristics of Stacked Block Column

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概要

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• For the aseismic design of a high temperature gas-cooled reactor (HTGR) with block-type fuel, it is necessary to predict the motion and force of core columns and blocks. To reveal column vibration characteristics in three-dimensional space and impact response•column vibration tests were carried out with a scale model of a one-region section (seven columns) of the HTGR core.<BR>The results are as follows : (1) the column has a soft spring characteristic based on stacked blocks connected with loose pins, (2) the column has whirling phenomena, (3) the compression spring force simulating the gas pressure has the effect of raising the column resonance frequency, and (4) the vibration behavior of the stacked block column and impact response of the surrounding columns show agreement between experiment and analysis.

• 一般社団法人 日本原子力学会の論文

著者

• IKUSHIMA Takeshi

  Japan Atomic Energy Research Institute

• HONMA Toshiaki

  Mitsubishi Heavy Industries Ltd.

関連論文

• Seismic response of high temperature gas-cooled reactor core with block-type fuel. II. Three-dimensional vibration characteristics of stacked block column.:Three-Dimensional Vibration Characteristics of Stacked Block Column

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