Study on Seismic Test of PWR Fuel Assembly

Guo Yan; Zhang Guoliang; Zhang Yanhong; Li Weicai; Hu Xiao; Gu Chenglong

doi:10.13832/j.jnpe.2023.02.0109

Volume 44 Issue 2

Apr. 2023

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Guo Yan, Zhang Guoliang, Zhang Yanhong, Li Weicai, Hu Xiao, Gu Chenglong. Study on Seismic Test of PWR Fuel Assembly[J]. Nuclear Power Engineering, 2023, 44(2): 109-115. doi: 10.13832/j.jnpe.2023.02.0109

Citation:

Guo Yan, Zhang Guoliang, Zhang Yanhong, Li Weicai, Hu Xiao, Gu Chenglong. Study on Seismic Test of PWR Fuel Assembly[J]. Nuclear Power Engineering, 2023, 44(2): 109-115. doi: 10.13832/j.jnpe.2023.02.0109

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Study on Seismic Test of PWR Fuel Assembly

doi: 10.13832/j.jnpe.2023.02.0109

1.
China Nuclear Power Technology Research Institute Co., Ltd., Shenzhen, Guangdong, 518026, China
2.
China Institute of Water Resources and Hydropower Research, Beijing, 100048, China

Received Date: 2022-06-02
Rev Recd Date: 2022-08-06
Publish Date: 2023-04-15

Abstract

Abstract

The seismic behavior of fuel assembly, as Class I seismic item, is directly related to the operation safety of nuclear power plants. It is usually necessary to verify the reasonableness of the seismic analysis method for reactor fuel assembly through seismic test. By simulating the actual reactor core fuel assembly installation method and designing the pressurized water reactor (PWR) fuel assembly seismic test specimens and devices, this paper carries out an experimental study for different fuel assembly quantity arrangement schemes on the high-performance seismic simulation vibration table. The results show that the first-order frequency of the fuel assembly in the water medium is 2.96 Hz, and the maximum impact force occurs in the position close to the middle of the fuel assembly. The lattice impact force and the relative displacement of the fuel assembly and the accelerations of the simulated core plate and baffle under the action of earthquake are obtained. The test results can be used to establish the seismic analysis model of fuel assembly and verify the analysis software under the designed reference accident condition.
- Pressurized water reactor (PWR),
- Fuel assembly,
- Seismic test,
- Lattice impact force

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References(12)

References

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