摘要
首先介绍了导体的测试结果;其次,为评估迫流冷却的二极NbTi超导磁体正常工况下对液氦产生的低温热负荷,基于surf152表面效应单元对线圈盒进行了辐射传热分析;此外,为减小通过线圈盒支撑的传导热负荷并且提高其机械强度,依据线圈盒支撑杆的设计尺寸,提出使用玻璃纤维经过三维编织的各向异性复合材料-G10制作线圈盒支撑杆,从而保证了支撑杆两端的强度。基于surf152单元以及solid90-solid186单元的热-结构分析进行了支撑整体的辐射+传导热分析以及结构分析,采用分段划分单元并通过约束方程实现模型各部分的刚性连接,从而提高了单元划分的质量和计算精度,分析的结果表明,各向异性玻璃纤维复合材料制作的线圈盒支撑满足传热和结构强度要求。开展的工作为国内自主开发迫流冷却二极超导磁体提供了有价值的研究基础。
The structure of the forced flow cooling dipole NbTi superconducting magnet and the testing results of the selected conductor were introduced.To evaluate the low temperature heat load under normal condition,the radiation analysis of the coil case based on the surf152 surface effect element was performed.In addition,to reduce the conduction heat load through the coil case support and improve its strength,according to the designed dimensions and its mechanical property,the G10 support made of anisotropic composite-G10 with glass-fiber braided by 3-dimension was put forward,consequently,which can insure the strength at the both ends of the G10 support.Further,the thermal analysis and thermal-structural analysis were performed to the support based on surf152 and solid90-solid186 elements respectively,to improve the quality of the finite element model（FEM） and the analysis accuracy,the constraint equations were used to realize the rigid connection.The calculating results indicate the anisotropic glass-fiber reinforced composite can satisfy the thermal and mechanical requirements in the same time.All the performed work provides valuable research foundation for developing the dipole superconducting magnet with intellectual property rights by us.
出处
《低温与超导》
CAS
CSCD
北大核心
2011年第11期42-47,共6页
Cryogenics and Superconductivity
基金
安徽省人才开发专项资金(2009Z056)
安徽建筑工业学院硕博科研启动项目(K02425)
安徽省教育厅产学研项目(KJ2010B036)
关键词
迫流冷却
二极超导磁体
热-结构分析
各向异性玻璃纤维复合材料
Forced flow cooling
Dipole superconducting magnet
Thermal-Structural analysis
Isotropic glass-fiber reinforced composite
