Abstract
To achieve a high current density and a compact REBCO coil, a reinforcing structure is essential to prevent coil degradation and deformation caused by the large Lorentz force. A new reinforcing structure for the REBCO coil called the Y-based oxide superconductor and reinforcing outer integrated (YOROI) coil was proposed in the previous study. The YOROI coil, which exhibited no degradation after an excitation test with a maximum hoop stress of 1.7 GPa at 4.2 K in 8-T backup fields, has great ability to reduce the stress and strain acting on the coil winding to maintain the coil shape and prevent degradation in the REBCO wire. In this study, the hoop stress in the winding and the stress shared by the reinforcing structure of a YOROI model coil were measured at 40 K in 10-T backup fields to clarify the reinforcing mechanism of the YOROI coil. A three-dimensional structural analysis, which simulated the experimental condition, was performed on the model coil to determine the distribution of stress and strain in the winding and reinforcing structure.
| Original language | English |
|---|---|
| Article number | 7397957 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 26 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2016 Jun 1 |
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Keywords
- REBCO coil
- reinforcing structure
- YOROI coil
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Experiment and Numerical Analysis on the YOROI Structure for High-Strength REBCO Coil. / Wang, Xudong; Tsuji, Yoshiaki; Ishiyama, Atsushi; Yamakawa, Hiroshi; Watanabe, Tomonori; Nagaya, Shigeo.
In: IEEE Transactions on Applied Superconductivity, Vol. 26, No. 4, 7397957, 01.06.2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Experiment and Numerical Analysis on the YOROI Structure for High-Strength REBCO Coil
AU - Wang, Xudong
AU - Tsuji, Yoshiaki
AU - Ishiyama, Atsushi
AU - Yamakawa, Hiroshi
AU - Watanabe, Tomonori
AU - Nagaya, Shigeo
PY - 2016/6/1
Y1 - 2016/6/1
N2 - To achieve a high current density and a compact REBCO coil, a reinforcing structure is essential to prevent coil degradation and deformation caused by the large Lorentz force. A new reinforcing structure for the REBCO coil called the Y-based oxide superconductor and reinforcing outer integrated (YOROI) coil was proposed in the previous study. The YOROI coil, which exhibited no degradation after an excitation test with a maximum hoop stress of 1.7 GPa at 4.2 K in 8-T backup fields, has great ability to reduce the stress and strain acting on the coil winding to maintain the coil shape and prevent degradation in the REBCO wire. In this study, the hoop stress in the winding and the stress shared by the reinforcing structure of a YOROI model coil were measured at 40 K in 10-T backup fields to clarify the reinforcing mechanism of the YOROI coil. A three-dimensional structural analysis, which simulated the experimental condition, was performed on the model coil to determine the distribution of stress and strain in the winding and reinforcing structure.
AB - To achieve a high current density and a compact REBCO coil, a reinforcing structure is essential to prevent coil degradation and deformation caused by the large Lorentz force. A new reinforcing structure for the REBCO coil called the Y-based oxide superconductor and reinforcing outer integrated (YOROI) coil was proposed in the previous study. The YOROI coil, which exhibited no degradation after an excitation test with a maximum hoop stress of 1.7 GPa at 4.2 K in 8-T backup fields, has great ability to reduce the stress and strain acting on the coil winding to maintain the coil shape and prevent degradation in the REBCO wire. In this study, the hoop stress in the winding and the stress shared by the reinforcing structure of a YOROI model coil were measured at 40 K in 10-T backup fields to clarify the reinforcing mechanism of the YOROI coil. A three-dimensional structural analysis, which simulated the experimental condition, was performed on the model coil to determine the distribution of stress and strain in the winding and reinforcing structure.
KW - REBCO coil
KW - reinforcing structure
KW - YOROI coil
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UR - http://www.scopus.com/inward/citedby.url?scp=84963831532&partnerID=8YFLogxK
U2 - 10.1109/TASC.2016.2524038
DO - 10.1109/TASC.2016.2524038
M3 - Article
VL - 26
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 4
M1 - 7397957
ER -