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增殖包层作为中国聚变工程实验堆(China Fusion Engineering Test Reactor,CFETR)的核心部件,承载着能量转换和氚增殖的重要作用。中国科学院等离子体物理研究所在之前增殖包层设计的基础上,又提出了氦冷陶瓷增殖(Helium Cooled Ceramic Breeder,HCCB)包层的概念设计。为评估电磁载荷对HCCB包层结构安全性的影响,借助通用有限元软件ANSYS,研究计算了在等离子体主破裂时包层中产生的感应涡流、洛伦兹力和力矩。通过多物理场耦合分析方法,获取了包层中产生的等效应力和形变位移。结果表明,在等离子体电流指数衰减时,HCCB包层模型上产生的最大等效应力和形变位移满足包层结构设计的要求,同时模拟分析结果也为未来的包层结构优化以及支撑结构设计提供了必要的数据支撑。
As a key component of China Fusion Engineering Test Reactor (CFETR), the proliferation cladding plays an important role in energy conversion and tritium proliferation. Based on the previous proliferation cladding design, the Institute of Plasma Physics, Chinese Academy of Sciences also proposed the conceptual design of the Helium Cooled Ceramic Breeder (HCCB) cladding. In order to evaluate the influence of electromagnetic load on the safety of the HCCB cladding structure, induced eddy current, Lorentz force and moment generated in the cladding during the main plasma rupture were studied and calculated by using the general finite element software ANSYS. By multi-physics coupling analysis method, the equivalent stress and deformation displacement in the cladding were obtained. The results show that the maximum equivalent stress and deformation of the HCCB cladding model meet the requirements of the cladding structure design when the plasma current exponential decays, and the results of the simulation analysis also provide the future optimization of the cladding structure and support structure design The necessary data support.