The Mechanical Analyses of CFETR CSMC Local Components Under the Steady-Operating Condition

The R&D of the central solenoid model coil (CSMC) is preparatory toward the final fabrication of the Chinese fusion engineering test reactor central solenoid coil. CSMC is being designed and partly fabricated in the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). During the process, new manufacturing technologies are developed and some design optimization is proposed. Based on the latest design update, a mechanical analysis is launched to verify whether or not the local components can withstand the shock of the complex loads at the CSMC's steady operation stage. The local components here referred to are the current lead joint and joggle. The current lead joint is the key component to transfer the current into coil modules. The joggle is designed to achieve the smooth transition between the different layers during the conductor winding process. The representative current lead joint and joggle are chosen for the mechanical analysis. The electromagnetic analysis is carried out first to calculate the magnetic field and electromagnetic force density by using the software ANSYS. Then, a one-fifth structural analysis model is built to analyze the stress state of the local components under the combination loads. Finally, the local components are evaluated based on the analytical design.