超导涡流制动装置液氦容器设计及分析  

Design and Analysis for the Cryogenic Vessel of the Superconductive Eddy Current Brake

作　　者：戴文华 奚维斌[1,2] 卫靖 方超 杜双松 宋云涛 DAI Wenhua;XI Weibin;WEIJing;FANG Chao;DU Shuangsong;SONG Yuntao(Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031;University of Science and Technology of China,Hefei 230026)

机构地区：[1]中国科学院合肥物质科学研究院等离子体物理研究所,合肥230031 [2]中国科学技术大学,合肥230026

出　　处：《低温物理学报》2023年第4期219-225,共7页Low Temperature Physical Letters

摘　　要：液氦容器是浸泡式超导涡流制动装置稳定运行不可或缺的部件,其漏热损耗和结构强度关系着内部超导磁体能否安全稳定的工作.针对超导涡流制动装置的液氦容器的各类漏热进行了分析计算,详细讨论了超导线圈励磁过程中对不同壁厚的液氦容器产生的涡流损耗,并采用Ansys有限元分析软件对不同壁厚液氦容器的强度进行了计算,结合漏热及强度计算结果获得了最优的液氦容器壁厚参数.结果表明4 mm壁厚下的液氦容器总漏热在励磁速度为90 A/s时可达1.87 W,液氦容器在各类综合力作用下的最大应力为393 MPa,最大变形为2.2 mm,可满足所选材料的漏热及强度需求,为超导涡流制动器装置总体设计提供了有力保证.The cryogenic vessel is an essential part of the supper conducting eddy current brake immersed in liquid helium.Its heat leakage and structural strength determined the safety of the internal superconducting magnet.The heat leakage of the cryogenic vessel of the superconducting eddy current brake was calculated,the eddy current loss was detailed studied based on the different thickness.The strength of the cryogenic vessel was analyzed by the finite element analysis software.The best thickness parameter was obtained considering the heat leakage and strength.The results showed that the total heat leakage of the cryogenic vessel was 1.87 W at 90 A/s,and the maximum stress of the cryogenic vessel under various comprehensive forces was 393 MPa,and the maximum deformation was 2.2 mm,both heat leakage and the strength could meet the requirements of the chosen material.

关 键 词：液氦容器 漏热 ANSYS 强度 

分 类 号：U270.35[机械工程—车辆工程]