国际反质子与离子大科学工程项目中的超导super-FRS磁体包含2个超导线圈,最大磁场为1.6 T,这样大的磁场必然产生很大的电磁力。为了保证磁体运行时的机械稳定性,对项目中的超导super-FRS磁体进行了有限元结构的3维分析。结构分析中采用了ADINA和TOSCA两个有限元软件。ADINA软件主要用于结构中的应力应变计算,而TOSCA软件则主要用于电磁场的磁场强度和电磁力的计算。分析的结果显示super-FRS磁体采用铁芯及线圈盒长边中部加固结构时,其最大形变约0.19 mm,最大有效应力出现在长边中部的很小区域,约为92 MPa。由于线圈盒由316LN不锈钢制成,该结构是合理的。

The super fragment separator (super-FRS) of the FAIR project (facility for antiproton and ion research) consists of two superconducting coils.The maximum magnetic field is as high as 1.6 T,which results in large magnetic force.In order to assure the mechanical stability of the superconducting magnet,we conducted a 3D finite element analysis of its mechanical behavior.For numerical simulation and analysis of the phenomena inside the structure,the ADINA and TOSCA codes were chosen.The ADINA code is commonly used for numerical simulations of the structure analysis and the TOSCA code is professional software to calculate the magnetic field and Lorentz Forces.The results show that for the coil case is made of 316LN stainless steel cast,the structure with iron core and fixers in the middle of the long sides is reasonable with the maximal displacement of about 0.19 mm and the maximal effective stress of about 92 MPa.