Experimental study on screening-current induced strain in REBCO insert coils: under critical current control and operation current cycles

材料科学 电磁线圈 电流(流体) 磁铁 工作(物理) 导电体 激发 拉伤 应变计 机械 复合材料 机械工程 电气工程 物理 工程类 医学 内科学
作者
Liangjun Shao,Yongjie Zhang,Canjie Xin,Fang Liu,Yufan Yan,Yi Li,Yubin Yue,Ziyang Xu,Peng Song,Xintao Zhang,Huajun Liu,Mingzhi Guan,Timing Qu
出处
期刊:Superconductor Science and Technology [IOP Publishing]
卷期号:37 (6): 065014-065014 被引量:3
标识
DOI:10.1088/1361-6668/ad44e0
摘要

Abstract The screening-current effect is an inhomogeneous distribution of current density inside the REBCO conductors. The additional strain induced by the screening current, known as screening-current induced strain (SCS), is considered to affect the structural integrity of REBCO windings, especially when operating high-field REBCO insert magnets. In this work, we wound and tested a series of 50-turn REBCO coils inside a 10 T LTS external to investigate the influencing mechanism of multiple electromagnetic factors on SCS. We varied the critical current in different coils by different heat treatment procedures. Each coil was tested individually, experiencing a external field cycle and multiple operation current cycles at constant external fields. The extreme scenario for each coil was being energized to 400 A while the external field was 10 T. We adapted the discrete-coupled model to estimate the hoop strain distribution, monitored the experimental results by multiple strain gauges at the outermost turn. Test coil with a lower critical current endured a lower maximum hoop strain. When we were energizing the test coils, hoop strain increased at the edge of REBCO tapes while remaining nearly constant in the middle region. Additionally, the maximum hoop strain at the outermost turn decreased after each excitation cycle. This work could be an experimental reference for optimizing the electromagnetic design and the excitation scheme during the development of high-field REBCO magnets.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
huangqian完成签到,获得积分10
1秒前
研友_ZlxBXZ完成签到,获得积分10
2秒前
四叶草完成签到 ,获得积分10
4秒前
5秒前
巴巴拉拉巴拉完成签到 ,获得积分10
8秒前
细心的语蓉完成签到,获得积分10
10秒前
miaomiao完成签到,获得积分10
11秒前
迅速的念芹完成签到 ,获得积分10
13秒前
nanfeng完成签到 ,获得积分10
14秒前
风起完成签到 ,获得积分10
15秒前
L1完成签到 ,获得积分10
16秒前
wang完成签到,获得积分10
16秒前
欢喜板凳完成签到 ,获得积分10
17秒前
希望天下0贩的0应助miaomiao采纳,获得10
18秒前
23秒前
JIAO完成签到 ,获得积分10
24秒前
25秒前
CiCi发布了新的文献求助30
30秒前
31秒前
CiCi完成签到,获得积分10
40秒前
蒋灵馨完成签到 ,获得积分10
45秒前
Zheng完成签到 ,获得积分10
49秒前
希望天下0贩的0应助Wang采纳,获得10
57秒前
lkk完成签到,获得积分10
58秒前
cdercder应助科研通管家采纳,获得10
1分钟前
wyw完成签到 ,获得积分10
1分钟前
1分钟前
Raymond完成签到,获得积分10
1分钟前
数乱了梨花完成签到 ,获得积分10
1分钟前
Kitty完成签到,获得积分10
1分钟前
1分钟前
柚C美式完成签到 ,获得积分10
1分钟前
十二完成签到 ,获得积分10
1分钟前
btcat完成签到,获得积分10
1分钟前
YORLAN完成签到 ,获得积分10
1分钟前
整齐百褶裙完成签到 ,获得积分10
1分钟前
1分钟前
从容的月光完成签到 ,获得积分10
1分钟前
Hua完成签到,获得积分10
1分钟前
高分求助中
Les Mantodea de Guyane Insecta, Polyneoptera 2500
Mobilization, center-periphery structures and nation-building 600
Technologies supporting mass customization of apparel: A pilot project 450
China—Art—Modernity: A Critical Introduction to Chinese Visual Expression from the Beginning of the Twentieth Century to the Present Day 430
Tip60 complex regulates eggshell formation and oviposition in the white-backed planthopper, providing effective targets for pest control 400
A Field Guide to the Amphibians and Reptiles of Madagascar - Frank Glaw and Miguel Vences - 3rd Edition 400
China Gadabouts: New Frontiers of Humanitarian Nursing, 1941–51 400
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3792550
求助须知:如何正确求助?哪些是违规求助? 3336787
关于积分的说明 10282162
捐赠科研通 3053566
什么是DOI,文献DOI怎么找? 1675652
邀请新用户注册赠送积分活动 803629
科研通“疑难数据库(出版商)”最低求助积分说明 761481