Two-dimensional mechanical analysis of superconducting double-aperture quadrupole magnet prototype for CEPC
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The circular electron-positron collider (CEPC) with a circumference about 100 km, a beam energy up to 120 GeV is proposed by the Institute of High Energy Physics. The heart of the CEPC is a double-ring collider with two interaction points. In each side of the collision point, superconducting double-aperture quadrupole magnets based on cos2θ design which is named QD0 and QF1 separately are required. Such kind of superconducting magnet is designed first time in domestic. Mechanical stability analysis is very important for superconducting magnet before manufacture. This paper mainly focused on the mechanical analysis of the prototype for QD0.
Materials and methods
A 2D 2-layers model was developed using ANSYS to simulate the stress distribution in the coil from collaring process at room temperature to low temperature excitation.
As part of the CEPC project, a 40 mm bore diameter superconducting double-aperture quadrupole magnet named QD0 is being designed and the physical calculation has been completed. This paper introduces the mechanical design, simulation model of prototype for QD0, and mainly expounds on stress analysis. The stress distribution during 4 stages including collaring (load application), collaring (inserting keys), cooling down and excitation is described in detail.
KeywordsSuperconducting quadrupole cos2θ Collar Stress
This work was supported by National Natural Science Foundation of China under Contract 11875272.
- 1.K. Zhang et al., 2-D mechanical design study of a 20-T two-in-one common-coil dipole magnet for high-energy accelerators. IEEE Trans. Appl. Supercond. 26(4), 4003705 (2016)Google Scholar
- 2.Y. Zhu, Conceptual design of CEPC interaction region superconducting final focus and anti-solenoid magnets, in Presented at International Workshop on High Energy Circular Electron Positron Collider, Beijing, China, November 6–8 (2017) https://indico.ihep.ac.cn/event/6618/. Accessed 2 Mar 2019
- 3.Y. Zhu et al., Proceeding of eeFACT2018, Hong Kong, China, pp. 241–246 (2018)Google Scholar
- 5.O. Norihito et al., Design and construction of the SuperKEKB QC1 final focus superconducting magnets. IEEE Trans. Appl. Supercond. 25(3), 4001204 (2015)Google Scholar
- 11.L. Rossi et al., THE LHC Superconducting magnets, in Proceedings of the 2003 Particle Accelerator Conference, pp. 141–145Google Scholar
- 13.F. Lackner et al., Status of the long MQXFB Nb3Sn coil prototype production for the HiLumi LHC. IEEE Trans. Appl. Supercond. 27(4), 40026 (2017)Google Scholar