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介绍了高温气冷堆新燃料运输货包严重撞击事故的仿真计算分析方法。根据实际货包结构及运输条件,确定了分析的严重撞击事故景象。通过有限元法计算分析了货包在不同姿态、不同速度下的碰撞结果,给出了容器不同部分及所装载的燃料组件的损坏情况。在此基础上,计算了严重事故景象下有效增殖因子keff。
This paper introduces the simulation calculation and analysis method of severe impact accident of new fuel transportation package in HTGR. According to the actual package structure and transport conditions, to determine the scene of a serious impact analysis. Through the finite element method, the collision results of the package at different postures and different speeds were analyzed. The damage of different parts of the container and the loaded fuel assemblies was also given. On this basis, the effective growth factor keff is calculated under the condition of serious accident.