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Accident scenaria and seismic stability of polar crane operating at a nuclear power plant

机译：在核电站运行的极地起重机的事故情景和地震稳定性

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摘要

In this study, a universal method is proposed to determine the seismic qualification of the structure of a polar crane, in an accident scenario, for operating at the nuclear power plant (NPP) Kozloduy, which includes preliminary functional analysis and seismic safety analysis. The initial events and event trees connected with the polar crane operation, which are crucial for the NPP safety insurance in case of earthquake accidents, are specified on the basis of the two analyses. The proposed method is the first basic step for seismic qualification of heavy equipment such as a polar crane. The second step is the analysis of the seismic stability of a NPP polar crane structure, based on the use of probability analysis of safety by seismic qualification. The real loading condition of the polar crane structure is determined by the ratio of the total actuation time of the systems for automatic protection and the time for maximal seismic applied load. A practical application of the method is done by using the finite element method to determine the high confidence for low probability of failure criteria and the seismic stability curve for the main beam of the polar crane.
机译：在这项研究中，提出了一种通用方法来确定在事故场景中在核电站（NPP）Kozloduy作业的极地起重机结构的抗震鉴定，包括初步功能分析和地震安全分析。在这两个分析的基础上，确定了与极地起重机操作有关的初始事件和事件树，这对于发生地震事故时的核电厂安全保险至关重要。提出的方法是对重型设备（如极地起重机）进行地震鉴定的第一步。第二步是基于通过地震鉴定对安全性进行概率分析，对NPP极性起重机结构的地震稳定性进行分析。极性起重机结构的实际载荷条件取决于自动保护系统的总启动时间与最大地震施加载荷的时间之比。该方法的实际应用是通过使用有限元方法确定极低可信度的高可信度和极地起重机主梁的抗震稳定性曲线。

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  • 来源
    《International journal of design engineering》 |2012年第1期|p.41-64|共24页
  • 作者

    Kalin Radlov; Vesko Panov; Anton Ianakiev;

  • 作者单位

    Department of Technology and Mechanisation of Construction, Faculty of Construction, University of Architecture, Civil Engineering and Geodesy-Sofia, 1 Hristo Smirnenski Blvd., Sofia- 1046, Bulgaria;

    Department of Engineering Logistics and Material Handling and Construction Techniques, Faculty of Mechanical Engineering, Technical University Sofia, 8 Kliment Ochridski Blvd., Sofia, Bulgaria;

    School of Architecture Design and Built Environment, Nottingham Trent University, 204 Arkwright Building, Burton Street, Nottingham NG1 4BU, UK;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    design engineering; nuclear power plant safety; polar crane; seismic excitation; accident scenario; main beam;

    机译：设计工程;核电厂安全;极地起重机地震激发事故场景;主梁;

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