Despite the rapid development of nuclear power, the risk of unforeseen beyond‐design‐basis events has become a major concern for nuclear power plant (NPP) operators such as malicious aircraft impacts (AIs). This paper aims to perform vibration analysis on a Generation III NPP subjected to a large commercial aircraft crash, considering soil‐structure‐interaction (SSI) effect. Based on the verified finite element (FE) models of the aircraft Airbus A340 and the NPP, the whole collision process is reproduced numerically by adopting the missile‐target‐interaction method. The selection of soil type was based on AP1000 six‐design soil sites, and five of which were selected for this study. The effect of impact direction, impact height, and embedment is also considered. Results showed that the soil type has a significant effect on the vibration response of points on the base‐mat. Generally, the flexibility of soil increases the response of these points. In the process of propagation, the more flexible the soil is, the faster the weakening range will be. Different impact location will have great influence on the AI‐induced vibration intensity of some areas of the NPP, such as the base‐mat in the shield building. Increasing embedded depth reduces the response of points on the base‐mat.

中文翻译：

---

大型商用飞机影响下考虑土-结构-相互作用效应的第三代核电站振动分析

尽管核电发展迅速，但不可预见的超出设计基准的事件的风险已成为核电站（NPP）运营商的主要关切，例如恶意飞机撞击（AI）。本文旨在对考虑到土壤-结构-相互作用（SSI）效应的第三代NPP大型商业飞机坠毁进行振动分析。基于已验证的空中客车A340和NPP飞机的有限元（FE）模型，采用导弹－目标－相互作用方法以数值方式再现了整个碰撞过程。土壤类型的选择基于AP1000的六个设计土壤场所，本研究选择了其中五个。还考虑了撞击方向，撞击高度和嵌入的影响。结果表明，土壤类型对基垫上各点的振动响应有显着影响。通常，土壤的柔韧性会增加这些点的响应。在繁殖过程中，土壤越柔软，减弱范围越快。不同的冲击位置将对NPP某些区域的AI引起的振动强度产生很大影响，例如盾构建筑物的基础垫。增加嵌入深度会降低基础垫上的点的响应。例如盾构中的底垫。增加嵌入深度会降低基础垫上的点的响应。例如盾构中的底垫。增加嵌入深度会降低基础垫上的点的响应。