气冷微堆石墨堆芯抗震分析初探

为评估气冷微堆石墨堆芯的结构安全性，获取堆芯石墨组件在地震激励下的应力状态。研究通过对比小尺寸石墨块碰撞试验与仿真模拟的加速度、速度曲线，发现仿真结果能够有效反映石墨块的碰撞规律，并可通过加速度及速度曲线识别其碰撞刚度与阻尼参数。基于试验获得的关键参数，开展了堆芯石墨构件的仿真分析，并将其应用于堆芯抗震计算中。最终完成了全堆芯模型的计算模拟，获得了石墨构件之间的相互作用力，并采用失效概率法对结构进行了评价。结果表明，石墨堆芯在地震载荷作用下满足ASME设计规范要求。...

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Bibliographic Details
Published in:	He jishu
Main Authors:	兰天宝, 冯天佑, 黄忠, 盛锋
Format:	Article
Language:	Chinese
Published:	Science Press 2025-10-01
Subjects:	石墨堆芯抗震分析刚度阻尼失效概率
Online Access:	https://www.sciengine.com/doi/10.3724/j.0253-3219.2025.hjs.48.250014

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