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首页> 外文期刊>Nuclear engineering and technology >Safety assessment of Generation III nuclear power plant buildings subjected to commercial aircraft crash Part II: Structural damage and vibrations
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Safety assessment of Generation III nuclear power plant buildings subjected to commercial aircraft crash Part II: Structural damage and vibrations

机译：遭受商用飞机坠毁的第三代核电站建筑物的安全评估第二部分：结构损坏和振动

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Investigations of the commercial aircraft impact effect on nuclear island infrastructures have been drawing extensive attention, and this paper aims to perform the safety assessment of Generation III nuclear power plant (NPP) buildings subjected to typical commercial aircrafts crash. At present Part II, based on the verified finite element (FE) models of aircrafts Airbus A320 and A380, as well as the NPP containment and auxiliary buildings in Part I of this paper, the whole collision process is reproduced numerically by adopting the coupled missile-target interaction approach with the finite element code LS-DYNA. The impact induced damage of NPP plant under four impact locations of containment (cylinder, air intake, conical roof and PCS water tank) and two impact locations of auxiliary buildings (exterior wall and roof of spent fuel pool room) are evaluated. Furthermore, by considering the inner structures in the containment and raft foundation of NPP, the structural vibration analyses are conducted under two impact locations (middle height of cylinder, main control room in the auxiliary buildings). It indicates that, within the discussed scenarios, NPP structures can withstand the impact of both two aircrafts, while the functionality of internal equipment on higher floors will be affected to some extent under impact induced vibrations, and A380 aircraft will cause more serious structural damage and vibrations than A320 aircraft. The present work can provide helpful references to assess the safety of the structures and inner equipment of NPP plant under commercial aircraft impact.
机译：对商用飞机对核岛基础设施的影响的研究已引起广泛关注，本文旨在对遭受典型商用飞机坠毁的第三代核电厂（NPP）建筑物进行安全评估。目前，第二部分基于空客A320和A380飞机的验证有限元模型，以及本文第一部分中的NPP围护和辅助建筑物，采用耦合导弹以数值方式再现了整个碰撞过程。目标与有限元代码LS-DYNA的交互方法。评估了在四个安全壳撞击部位（气缸，进气口，圆锥形顶盖和PCS水箱）和两个辅助建筑物的撞击位置（乏燃料池房的外墙和屋顶）下，NPP工厂的撞击诱发损坏。此外，通过考虑核电厂安全壳和筏板基础的内部结构，在两个冲击位置（圆柱体的中间高度，辅助建筑物的主控制室）进行了结构振动分析。它表明，在讨论的方案中，NPP结构可以承受两架飞机的撞击，而内部设备在较高楼层上的功能将在撞击引起的振动下受到一定程度的影响，而A380飞机将造成更严重的结构损坏和振动比A320飞机大。本工作可为评估商用飞机撞击下核电厂工厂结构和内部设备的安全性提供有益的参考。

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