ITER中国实验包层在等离子主破裂下的电磁耦合评估  

Electromagnetic Coupling Evaluations on ITER Chinese TBM under Plasma Major Disruptions

作　　者：高椿明[1] 秦臻[1] 陈颜静[2] 

机构地区：[1]电子科技大学光电信息学院,成都610054 [2]核工业西南物理研究院,成都610041

出　　处：《电子科技大学学报》2013年第5期678-683,共6页Journal of University of Electronic Science and Technology of China

基　　金：四川省青年基金人才培养计划(2011JQ0025);国家自然科学基金(50506006;61107078)

摘　　要：应用ANSYS有限元软件模拟了ITER等离子体电流的两种主破裂事故和中国固态实验包层所处的物理环境,研究了电磁瞬态变化对TBM结构设计的影响,并得到了感生涡流以及磁场与涡流相互作用产生的电磁力的变化趋势。同时通过多物理场耦合计算,得到了TBM的结构应力、形变位移以及由于感生涡流引起的焦耳热效应分析。结果表明,等离子体电流的线性和指数衰减在TBM上产生的最大等效应力与温升都符合安全设计要求。此外,敏感性分析表明,改变包层后板的支撑套筒长度可降低最大等效应力,可为包层的安全设计提供参考数据。In order to study the influence of electromagnetic （EM） transients on the structural design of test breeder module （TBM）, two plasma major disruptions in ITER and the physical environment of Chinese solid breeder TBM for EM field analysis are simulated by ANSYS finite element software. The eddy currents induced by EM transients and the trend of Lorentz forces caused by the interactions of magnetic field and the eddy currents are evaluated. Meanwhile, the structure stress, displacement of deformation, and the Joule heating effect caused by eddy currents on TBM are obtained by coupling calculation of multi-physical field. The results show that the maximum equivalent stresses and the temperature rises produced by the linear and exponent disruption are satisfied with the requirements of safety design. Moreover, the sensitivity analysis indicates that the maximum equivalent stress can be reduced by changing the length of cartridge, which provides reference for safety design of TBM.

关 键 词：耦合计算 感生涡流 电磁安全 等离子主破裂 温升 实验包层模块 

分 类 号：O53[理学—等离子体物理]