摘要
利用有限元计算模拟了周围磁性物体在强磁场下的磁化分布及其对超导磁体的反作用力,通过实验测量了在中子平台复杂的磁性物体结构中超导磁体随加载磁场的受力变化情况。结果表明,周围磁性物体对超导磁体施加的磁力随着磁场强度以平方关系增加,当磁场达到2.5 T时,磁力为27.3 kg。根据中子平台运行的现实条件,建议此超导磁体在该中子平台的安全运行上限磁场为2.5 T。
In this paper,the responding force of superconducting magnet in complex structure of magnetic object on neutron platform was measured,and the magnetization distribution of surrounding magnetic object in strong magnetic field and its responding force to the superconducting magnet were simulated using finite element analysis.The results suggest that the magnetic force exerted by the surrounding magnetic objects on the superconducting magnet increases in square relation with the magnetic field value,and the magnetic force is 27.3 kg when the magnetic field reaches 2.5 T.According to the actual operating conditions of the neutron platform,it is recommended that the upper limit magnetic field is 2.5 T for the safe operation of the superconducting magnet.
作者
罗万居
吴锡
胡海韬
白波
黄志强
袁宝
邓昌东
张绍英
童欣
Luo Wanju;Wu Xi;Hu Haitao;Bai Bo;Huang Zhiqiang;Yuan Bao;Deng Changdong;Zhang Shaoying;Tong Xin(Spallation Neutron Source Science Centre,Dongguan 523803,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China)
出处
《低温与超导》
CAS
北大核心
2020年第8期21-25,共5页
Cryogenics and Superconductivity
基金
国家自然科学基金面上项目(11875265)
中国科学院率先行动“百人计划”学术帅才(人字[2018]53号)
东莞市第九批创新创业领军人才(创新类)项目资助。
关键词
超导磁体
中子散射样品台
有限元模拟
压力传感器
受力分析
Superconducting magnet
Neutron scattering sample table
Finite element analysis
Force sensor
Force analysis
