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Mechanical stress analysis during a quench in CLIQ protected 16 T dipole magnets designed for the future circular collider

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Mechanical stress analysis during a quench in CLIQ protected 16 T dipole magnets designed for the future circular collider. / Zhao, Junjie; Prioli, Marco; Stenvall, Antti; Salmi, Tiina; Gao, Yuanwen; Caiffi, Barbara; Lorin, Clement; Marinozzi, Vittorio; Farinon, Stefania; Sorbi, Massimo.

In: Physica C: Superconductivity and its Applications, Vol. 550, 15.07.2018, p. 27-34.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Zhao, J, Prioli, M, Stenvall, A, Salmi, T, Gao, Y, Caiffi, B, Lorin, C, Marinozzi, V, Farinon, S & Sorbi, M 2018, 'Mechanical stress analysis during a quench in CLIQ protected 16 T dipole magnets designed for the future circular collider' Physica C: Superconductivity and its Applications, vol. 550, pp. 27-34. https://doi.org/10.1016/j.physc.2018.04.003

APA

Zhao, J., Prioli, M., Stenvall, A., Salmi, T., Gao, Y., Caiffi, B., ... Sorbi, M. (2018). Mechanical stress analysis during a quench in CLIQ protected 16 T dipole magnets designed for the future circular collider. Physica C: Superconductivity and its Applications, 550, 27-34. https://doi.org/10.1016/j.physc.2018.04.003

Vancouver

Author

Zhao, Junjie ; Prioli, Marco ; Stenvall, Antti ; Salmi, Tiina ; Gao, Yuanwen ; Caiffi, Barbara ; Lorin, Clement ; Marinozzi, Vittorio ; Farinon, Stefania ; Sorbi, Massimo. / Mechanical stress analysis during a quench in CLIQ protected 16 T dipole magnets designed for the future circular collider. In: Physica C: Superconductivity and its Applications. 2018 ; Vol. 550. pp. 27-34.

Bibtex - Download

@article{0739b314e75f4021becdd4cce26909b1,
title = "Mechanical stress analysis during a quench in CLIQ protected 16 T dipole magnets designed for the future circular collider",
abstract = "Protecting the magnets in case of a quench is a challenge for the 16 T superconducting dipole magnets presently designed for the 100 TeV: Future Circular Collider (FCC). These magnets are driven to the foreseen technological limits in terms of critical current, mechanical strength and quench protection. The magnets are protected with CLIQ (Coupling-Loss Induced Quench) system, which is a recently developed quench protection method based on discharging a capacitor bank across part of the winding. The oscillation of the magnet currents and the dissipation of the high stored energy into the windings cause electrodynamic forces and thermal stresses, which may need to be considered in the magnet mechanical design. This paper focuses on mechanical stress analysis during a quench of the 16 T cos-θ and block type dipole magnets. A finite element model allowed studying the stress due to the non-uniform temperature and current distribution in the superconducting coils. Two different CLIQ configurations were considered for the cos-θ design and one for the block type magnet. The analyses of the mechanical behavior of two magnets during a quench without or with hot spot turn were separately carried out. The simulation results show that the stress related to a quench should be considered when designing a high field magnet.",
keywords = "Accelerator magnet, CLIQ protection system, Finite element analysis, Lorentz forces, Quench, Thermal stress",
author = "Junjie Zhao and Marco Prioli and Antti Stenvall and Tiina Salmi and Yuanwen Gao and Barbara Caiffi and Clement Lorin and Vittorio Marinozzi and Stefania Farinon and Massimo Sorbi",
year = "2018",
month = "7",
day = "15",
doi = "10.1016/j.physc.2018.04.003",
language = "English",
volume = "550",
pages = "27--34",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Mechanical stress analysis during a quench in CLIQ protected 16 T dipole magnets designed for the future circular collider

AU - Zhao, Junjie

AU - Prioli, Marco

AU - Stenvall, Antti

AU - Salmi, Tiina

AU - Gao, Yuanwen

AU - Caiffi, Barbara

AU - Lorin, Clement

AU - Marinozzi, Vittorio

AU - Farinon, Stefania

AU - Sorbi, Massimo

PY - 2018/7/15

Y1 - 2018/7/15

N2 - Protecting the magnets in case of a quench is a challenge for the 16 T superconducting dipole magnets presently designed for the 100 TeV: Future Circular Collider (FCC). These magnets are driven to the foreseen technological limits in terms of critical current, mechanical strength and quench protection. The magnets are protected with CLIQ (Coupling-Loss Induced Quench) system, which is a recently developed quench protection method based on discharging a capacitor bank across part of the winding. The oscillation of the magnet currents and the dissipation of the high stored energy into the windings cause electrodynamic forces and thermal stresses, which may need to be considered in the magnet mechanical design. This paper focuses on mechanical stress analysis during a quench of the 16 T cos-θ and block type dipole magnets. A finite element model allowed studying the stress due to the non-uniform temperature and current distribution in the superconducting coils. Two different CLIQ configurations were considered for the cos-θ design and one for the block type magnet. The analyses of the mechanical behavior of two magnets during a quench without or with hot spot turn were separately carried out. The simulation results show that the stress related to a quench should be considered when designing a high field magnet.

AB - Protecting the magnets in case of a quench is a challenge for the 16 T superconducting dipole magnets presently designed for the 100 TeV: Future Circular Collider (FCC). These magnets are driven to the foreseen technological limits in terms of critical current, mechanical strength and quench protection. The magnets are protected with CLIQ (Coupling-Loss Induced Quench) system, which is a recently developed quench protection method based on discharging a capacitor bank across part of the winding. The oscillation of the magnet currents and the dissipation of the high stored energy into the windings cause electrodynamic forces and thermal stresses, which may need to be considered in the magnet mechanical design. This paper focuses on mechanical stress analysis during a quench of the 16 T cos-θ and block type dipole magnets. A finite element model allowed studying the stress due to the non-uniform temperature and current distribution in the superconducting coils. Two different CLIQ configurations were considered for the cos-θ design and one for the block type magnet. The analyses of the mechanical behavior of two magnets during a quench without or with hot spot turn were separately carried out. The simulation results show that the stress related to a quench should be considered when designing a high field magnet.

KW - Accelerator magnet

KW - CLIQ protection system

KW - Finite element analysis

KW - Lorentz forces

KW - Quench

KW - Thermal stress

U2 - 10.1016/j.physc.2018.04.003

DO - 10.1016/j.physc.2018.04.003

M3 - Article

VL - 550

SP - 27

EP - 34

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

ER -