核电站抗震仪表支架应力分析及结构优化
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TM623

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Stress Analysis and Structural Optimization of Seismic Instrument Support in Nuclear Power Plant
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    摘要:

    为了验证华龙一号三代核电站中仪表支架的抗震性能,采用ANSYS软件建立了仪表支架有限元模型,选用静力系数分析法对仪表支架进行了抗震分析,并根据《压水堆核岛机械设备设计和建造规则》(AFCEN RCC-M—2007)对仪表支架进行了评定。根据计算结果对仪表支架采用增加肋板的结构优化方式。通过对比仪表支架在不同尺寸肋板下的最大应力比,确定了合适的肋板尺寸方案。综合评定结果表明,结构优化后仪表支架各部件均满足RCC-M规范的要求,确保了仪表支架各工况下的机械性能。本文的计算方法及结构优化方式可为类似支架的设计分析提供借鉴。

    Abstract:

    In order to verify the seismic performance of the instrument support in Hua-long Pressurized Reactor (HPR1000) nuclear power plant, the finite element model of the instrument support was established by ANSYS software. The static coefficient analysis method was selected for the seismic analysis of the instrument support. The instrument support was evaluated according to Design and Conception rules for Mechanical Components of PWR Nuclear Islands(AFCEN RCC-M—2007). According to the calculation results, the structure optimization method of increasing the reinforcement plates was adopted for the instrument support. By comparing the maximum stress ration of the instrument support under different sizes of reinforcement plates, the suitable plate size scheme was determined. The comprehensive evaluation results show that all the components of the optimized instrument support meet the requirements of RCC-M standard. The mechanical performances of the instrument support under various working conditions are guaranteed. The calculation method and structural optimization approach in this paper can provide reference for the design and analysis of similar supports.

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李伟正,郭石永. 核电站抗震仪表支架应力分析及结构优化[J]. 科学技术与工程, 2022, 22(16): 6530-6536.
Li Weizheng, Guo Shiyong. Stress Analysis and Structural Optimization of Seismic Instrument Support in Nuclear Power Plant[J]. Science Technology and Engineering,2022,22(16):6530-6536.

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历史
  • 收稿日期:2021-08-31
  • 最后修改日期:2022-03-07
  • 录用日期:2021-12-26
  • 在线发布日期: 2022-06-22
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