核电厂系统内部的部件脱落或者设备维修时物品遗落,将在系统内部产生异物。异物对核电厂的系统安全运行产生不利影响。目前异物对核电厂燃料组件等重要核心设备和部件的冲击和磨损特性研究相对较少。本文对异物冲击和磨损理论及实验研究结果进行总结,梳理异物冲击和磨损特性分析中的关键问题,为推动核电厂异物冲击和磨损的深入研究奠定基础,同时为燃料组件等核心部件的安全分析与设计提供一定参考。The detachment of components within the nuclear power plant system, along with items inadvertently left behind during maintenance activities, can lead to the presence of foreign objects in the system. These foreign objects pose significant risks to the safe operation of nuclear power plants. Currently, research on the impact and wear characteristics of foreign objects affecting critical core equipment and components—such as fuel assemblies—remains limited. This paper provides a comprehensive summary of both theoretical and experimental findings related to foreign object impact and wear, identifies key issues in analyzing these characteristics, establishes a foundation for advancing research in this area, and offers valuable insights for the safety analysis and design of core components like fuel assemblies.
