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Axial response of PWR fuel assemblies for earthquake and pipe break excitations

  • Jhung, Myung J. (Mechanical Engineering Group, Korea Institute of Nuclear Safety)
  • 발행 : 1997.03.25

초록

A dynamic time-history analysis of the coupled internals and core in the vertical direction is performed as a part of the fuel assembly qualification program. To reflect the interaction between the fuel rods and grid cage, friction element is developed and is implemented. Also derived here is a method to calculate a hydraulic force on the reactor internals due to pipe break. Peak responses are obtained for the excitations induced from earthquake and pipe break. The dynamic responses such as fuel assembly axial forces and lift-off characteristics are investigated.

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참고문헌

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  9. Jhung, M.J. and Hwang, W.G. (1994), "Seismic behavior of a fuel assemby in the reactor core," Seismic Engineering, ASME PVP, 275-1, New York.
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피인용 문헌

  1. Modal characteristics of partially perforated rectangular plate with triangular penetration pattern vol.55, pp.3, 2015, https://doi.org/10.12989/sem.2015.55.3.583
  2. Free vibration analysis of perforated plate with square penetration pattern using equivalent material properties vol.47, pp.4, 2015, https://doi.org/10.1016/j.net.2015.01.012
  3. Integrity evaluation of fuel assembly for earthquake vol.185, pp.1, 1998, https://doi.org/10.1016/S0029-5493(98)00230-1