Structure analysis of super-FRS dipoles for FAIR project

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.