Analysis of response of BWR core structures to earthquakes.

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概要

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• A study of the dynamic response of BWR core structures to earthquakes is reviewed in this paper. A structure which vibrates in a liquid is significantly affected by fluid inertia. A BWR core consists of several hundred of fuel elements and these fuel elements, being submerged in hot water, are hydrodynamically coupled with each other, when they are vibrated by an earthquake. A practical method is devised to analyze the vibration of the fuel-elements/water system. Dynamic characteristics of a core are identified by the method and checked by a series of experiments. Finally a simple single-degree-of-freedom model is shown to be effective in the seismic design analysis of a BWR core.

• 一般社団法人 日本原子力学会の論文

著者

• Tomita Hisao

  Toshiba Research And Development Center

• IKEDA Toru

  Nuclear Power Construction Department, Tokyo Electric Power Co. Ltd.,

• KASAI Hiroaki

  Mechanical Engineering Research Laboratory, Hitachi Ltd.,

• MATSUMOTO Takuji

  Plant Design and Engineering Department, Nuclear Energy Group, Toshiba Corp.,

• MORIYAMA Takeo

  Nuclear Construction Engineering Department, Hitachi Works, Hitachi Ltd.,

関連論文

• Vibration of Rotating Bladed Disc Excited by Stationary Distributed Forces
• Analysis of response of BWR core structures to earthquakes.

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