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等离子体破裂工况下的聚变堆包层组件电磁分析

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核聚变与等离子体物理 2015年第3期35卷 259-264页

作者：陈明锋刘素梅孙朋飞雷明准王忠伟安徽农业大学工学院合肥230036 中国科学院等离子体物理研究所合肥230031

在聚变堆中,包层是真空室内的核心部件之一,它直接面对等离子体,工作环境十分恶劣。利用ANSYS软件的矢量电磁法,计算了中国聚变工程实验堆(CFETR)包层在离子体破裂和垂直位移事件中感应的涡电流和电磁力。介绍了建模、电流源加载、边界... 详细信息

在聚变堆中,包层是真空室内的核心部件之一,它直接面对等离子体,工作环境十分恶劣。利用ANSYS软件的矢量电磁法,计算了中国聚变工程实验堆(CFETR)包层在离子体破裂和垂直位移事件中感应的涡电流和电磁力。介绍了建模、电流源加载、边界条件的设置、求解和计算结果。这为今后包层组件结构的详细设计和优化提供了必要的参考数据和方法。

关键词：聚变堆包层等离子体破裂涡电流电磁分析

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基于有限元的车门模态分析与优化研究

汽车技术 2008年第12期 4-7页

作者：雷明准张丰利王建楠陈剑合肥工业大学

利用Patran软件和Nastran软件对车门进行了有限元建模和模态分析,得到了车门的固有频率和振型。车门的计算结果和试验结果对比分析表明,所建立的有限元模型较好的反映了原结构的振动特性;车门与整车存在相近频率。通过优化车门上部分零... 详细信息

利用Patran软件和Nastran软件对车门进行了有限元建模和模态分析,得到了车门的固有频率和振型。车门的计算结果和试验结果对比分析表明,所建立的有限元模型较好的反映了原结构的振动特性;车门与整车存在相近频率。通过优化车门上部分零件的厚度可避开相近频率,为今后新车门开发打下了技术基础。

关键词：车门模态分析有限元优化

Neutronic investigation and activation calculation for CFETR HCCB blankets

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Plasma Science and Technology 2017年第12期19卷 139-145页

作者：徐淑玲雷明准刘素梅陆坤徐坤裴坤 Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People's Republic of China University of Science and Technology of China Hefei 230026People's Republic of China

The neutronic calculations and activation behavior of the proposed helium cooled ceramic breeder（HCCB） blanket were predicted for the Chinese Fusion Engineering Testing Reactor（CFETR） design model using the MCNP multi-particle transport code and its associated data library. The tritium self-sufficiency behavior of the HCCB blanket was assessed, addressing several important breeding-related arrangements inside the blankets. Two candidate first wall armor materials were considered to obtain a proper tritium breeding ratio（TBR）. Presentations of other neutronic characteristics, including neutron flux, neutron-induced damages in terms of the accumulated dpa and helium production were also conducted. Activation, decay heat levels and contact dose rates of the components were calculated to estimate the neutron-induced radioactivity and personnel safety. The results indicate that neutron radiation is efficiently attenuated and slowed down by components placed between the plasma and toroidal field *** dominant nuclides and corresponding isotopes in the structural steel were discussed. A radioactivity comparison between pure beryllium and beryllium with specific impurities was also performed. After a millennium cooling time, the decay heat of all the concerned components and materials is less than 1？×？10-4 k W, and most associated in-vessel components qualify for recycling by remote handling. The results demonstrate that acceptable hands-on recycling and operation still require a further long waiting period to allow the activated products to decay.

关键词： tritium breeding ratio neutron flux neutron-induced damages radioactivity behavior

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悬置支架的有限元分析与拓扑优化研究

悬置支架的有限元分析与拓扑优化研究

Preliminary Thermal Mechanical Analysis of the Equatorial Thermal Shield for ITER

第二十一届全国振动与噪声高技术及应用学术会议

作者：雷明准陈剑陈心昭合肥工业大学噪声振动工程研究所

运用有限元的方法分析了悬置支架的模态和应力情况,得出一阶固有频率符合产品要求的结论,找出了悬置支架应力集中区域。采用拓扑优化方法对悬置支架进行了优化研究。分析研究表明,有限元仿真可以找出模型存在的问题,拓扑优化可以为模型... 详细信息

运用有限元的方法分析了悬置支架的模态和应力情况,得出一阶固有频率符合产品要求的结论,找出了悬置支架应力集中区域。采用拓扑优化方法对悬置支架进行了优化研究。分析研究表明,有限元仿真可以找出模型存在的问题,拓扑优化可以为模型的概念设计提供一定的参考。

关键词：悬置支架有限元优化

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Plasma Science and Technology 2012年第10期14卷 932-935页

作者：雷明准宋云涛杜世俊叶民友奚维斌刘旭峰刘辰 Institute of Plasma Physics Chinese Academy of Sciences

Thermal analysis of the equatorial thermal shield for ITER is conducted in order to confirm that the cooling tube design was reasonable under both the plasma operational and the baking operational conditions. The structural performance was analyzed by means of the finite element software ANSYS. A comparison of the results with design requirements shows that the results of the simulation are within allowable design requirements, which indicates the feasibility and reliability of the equatorial thermal shield structure.

关键词： ITER tokamak thermal shield finite element analysis

Primary Design and Analysis of Feeder for ITER Poloidal Field

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Plasma Science and Technology 2011年第5期13卷 623-626页

作者：雷明准宋云涛刘素梅陆坤王忠伟 Institute of Plasma Physics Chinese Academy of Science

An electromagnetic （EM） analytic model for the PF feeder, applied to ITER and needed to convey the cryogenic supply and electrical power to the PF magnets, was built up. The magnetic flux density and the EM force under the worst conditions with the maximum working current in each coil were then calculated. Based on the EM analysis and theoretical calculation, the relationship between the busbar stress and the distance of neighbouring busbar supports was obtained, which provides an approach to optimize the design of the busbar supports. In order to check the feasibility of the PF feeder structure, a finite element model was built up and the ANSYS code was applied to analyze the stress and displacement. The numerical results show that the stress of the PF feeder is within the allowable limits and the structure is feasible.

关键词： PF feeder ITER design analysis

The Design and Test of a Be Window for the ITER Radial X-Ray Camera

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Plasma Science and Technology 2013年第11期15卷 1160-1164页

作者：陈肇玺胡立群程勇雷明准陈晔斌宋云涛 Institute of Plasma Physics Chinese Academy of Sciences

Beryllium （Be） window is a key component of the ITER radial X-ray camera （RXC）. The Be window presented in this paper has a mechanical clamping structure, the thickness of the Be foil is 80 μm, and the X-ray threshold of the 80 μm Be foil is 1.24 keV. A honeycomb support is designed and applied to strengthen the Be foil to prevent it from breakage when it is exposed to 1 atm perssure. Based on analysis results, the hole diameter of the support is chosen as 4 mm. A metal seal is used to isolate the vacuum on two sides of the Be window, the hollow metal sealing ring ensures the He leakage rate of the Be window being lower than 6× 10^-1 Pa.m^3.s^-1. Baking （240 ℃, 2 h） and vibration（3.3 Hz, 2 h） tests are carried out and the feasibility of the Be window＇s sealant in these situations is tested. The Be window has good stability that can save maintenance cost as well as enhancing the safety of the RXC.

关键词： ITER RXC Be window X-ray threshold honeycomb support met al seal

不同描述的中子源模型对CFETR中子学计算的影响

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核技术 2017年第2期40卷 81-86页

作者：刘琪徐坤雷明准宋云涛中国科学技术大学合肥230031 中国科学院等离子体物理研究所合肥230031

在托卡马克实验装置中,D-T聚变反应释放出的14 Me V高能中子,与周围部件接触会引起包层材料活化、热负载过高等一系列问题,因此在包层设计和优化过程中,相关的中子学计算显得尤为重要。为了研究不同描述的中子源模型对中国聚变工程实验... 详细信息

在托卡马克实验装置中,D-T聚变反应释放出的14 Me V高能中子,与周围部件接触会引起包层材料活化、热负载过高等一系列问题,因此在包层设计和优化过程中,相关的中子学计算显得尤为重要。为了研究不同描述的中子源模型对中国聚变工程实验堆(China Fusion Engineering Test Reactor,CFETR)中子学计算的影响,使用基于蒙特卡罗方法的MCNP(Monte Carlo N Particle Transport Code)程序来模拟中子输运过程,分别计算点源、均匀体源、基于L、H、A模约束的中子源模型对不同中子学计算的影响。结果表明,不同描述的中子源模型对氚增殖比影响较小,对中子壁负载和功率密度分布影响比较明显。

关键词：蒙特卡罗中子源氚增殖比中子壁负载功率密度

Mechanical analysis of the ITER cryostat

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Mechanical analysis of the ITER cryostat