Mechanical Design and Stress Analysis of LPF2: A 12-T Hybrid Common-Coil Dipole Magnet

Mechanical Design and Stress Analysis of LPF2: A 12-T Hybrid Common-Coil Dipole Magnet
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LPF2 的机械设计和应力分析:12-T 混合共线圈偶极磁体

DOI:
10.1109/tasc.2020.2973118
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发表时间:
2020-06
影响因子:
1.8
通讯作者:
Xu Qingjin
Xu Qingjin
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Wang Yingzhe;Yang Xiangchen;Zhang Zhen;Wang Chengtao;Zhang Zhan;Wei Shaoqing;Gong Lingling;Zhu Zian;Kong Ershuai;Peng Quanling;Zhou Jianxin;Xu Qingjin

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为超质子-质子对撞机项目的前期研究,中国科学院高能物理研究所(高能所,中国)一直致力于共线圈壳基偶极磁体的研制。第一个小规模磁体LPF1,有两个Nb3Sn线圈和四个NbTi线圈,在4.2K时的内径磁场达到10.2T。随后,提出了一个更高的安全裕度模型LPF2,它有六个Nb3Sn线圈和两个NbTi线圈,在两个孔中都达到了12T的主磁场,工作电流为5300A。外壳和线圈重复使用LPF1,以及LPF1的两个Nb3Sn线圈和两个内侧NbTi线圈。LPF2的预加载方法与LPF1非常相似:使用关键技术--气囊克服水平和垂直方向的洛伦兹力,并预紧六根铝棒,在轴向预紧线圈组。此外,应变片放置在铝壳的表面,以监测预加载效果。给出了主要设计参数和应力分析结果。
The Institute of High Energy Physics (IHEP, China) has been engaged in the development of shell-based dipole magnets with a common-coil configuration for the pre-study of the Super proton-proton Collider (SPPC) project. The first subscale magnet LPF1, with two Nb3Sn coils and four NbTi coils, reached a bore field of 10.2 T at 4.2 K. Subsequently a higher safety margin model has been proposed as LPF2, which has six Nb3Sn coils and two NbTi coils to reach a 12-T main field in both apertures with an operating current of 5300 A. The shell and yoke are reused from LPF1, as well as the two Nb3Sn coils and two inner NbTi coils of LPF1. The pre-loaded method of LPF2 is much alike that in LPF1: using the Bladder & Key technology to overcome the Lorentz forces in horizontal and vertical directions and pre-tightening six aluminum rods to pre-load the coil packs in the axial direction. In addition, the strain gauges are positioned at the surface of the aluminum shell to monitor the pre-loading effect. The main design parameters and stress analyses results will be presented.
DOI: --
发表时间: 2011-04
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影响因子: --
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