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MT27, 27th International Conference on Magnet Technology

15–19 Nov 2021
Fukuoka Convention Center
Asia/Tokyo timezone

Session

TUE-PO1-715 Mechanical Behavior of Coil I

715
16 Nov 2021, 13:15
Fukuoka Convention Center

Fukuoka Convention Center

Presentation materials

There are no materials yet.

  1. 881. Deformation Analysis of no-insulation REBCO coils considering turn-to-turn contact configuration (TUE-PO1-715-01)
    Dr Hiroshi Ueda (Okayama University)
    16/11/2021, 13:15
    Poster

    In recent year, there has been remarkable progress in the use of high-field rare-earth barium copper oxide (REBCO) coils in NMR, MRI, and accelerator applications. No-insulation (NI) winding techniques are adopted to achieve high thermal stability and high current density. Thus, each winding in a non-impregnated NI REBCO coil can deform separately and move freely because of the thermal strain...

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  2. 494. Effects of Friction Force on the Stress-Strain Characteristics of a High-Temperature Superconducting Coil Co-Wound Using Intentionally Scratched Stainless Steel and GdBCO Tape (TUE-PO1-715-02)
    Mr Yunyeol Ryu (Korea University)
    16/11/2021, 13:15
    Poster

    The high-field magnets experience the large amount of mechanical stress as a result of Lorentz forces. During the magnetization of the coil, strong Lorentz forces give rise to hoop stress, which can cause mechanical failure, resulting in the degradation of the coil performance. A recent study led to the discovery that scratching the GdBCO-coated conductor (CC) tapes ameliorated the degradation...

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  3. 290. Numerical Evaluation of Reinforcement Structure against Electromagnetic and Thermal Stresses in Stacked REBCO Pancake Coils (TUE-PO1-715-03)
    Mr Keisuke Naito (Okayama University)
    16/11/2021, 13:15
    Poster

    REBCO wires have high thermal stability and high current density, therefore, it is expected to be applied to high magnetic field magnet for NMR, MRI, and accelerators. On the other hand, there is the problem such as mechanically deteriorations and damages of REBCO coils. Because REBCO wires are tape shape, when charging and discharging, screening currents are induced to circulate in the...

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  4. 824. Numerical evaluation of the potential methods of reducing screening-current-induced stress in NI-REBCO coil (TUE-PO1-715-04)
    Zhaofei Jiang
    16/11/2021, 13:15
    Poster

    In recent years, the no-insulation REBCO (NI-REBCO) coils show remarkable attraction and potential in high field areas. For a REBCO coil, the stress generated by screening current under high magnetic field is a crucial concern for the magnet operating performance. Therefore, how to effectively reduce strain created by screening current is a key challenge in the NI-REBCO coil magnet’s...

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  5. 1030. Numerical modelling and calculation of mechanical properties of HTS magnet wound with multi-thickness armored REBCO tapes (TUE-PO1-715-05)
    Xie Pengyang (Southwest Jiaotong University)
    16/11/2021, 13:15
    Poster

    High-temperature superconducting (HTS) magnets have been widely used in the fields of electricity, transportation, medicine, and scientific experiment. However, HTS magnets generally suffer from the thermal stress and electromagnetic stress during manufacture and operation, deteriorating its mechanical properties as well as restricting its further development. This study is aimed at improving...

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  6. 354. Numerical Modelling of the Interfacial Debonding in Superconducting Magnets (TUE-PO1-715-06)
    Giorgio Vallone (Lawrence Berkeley National Lab. (US))
    16/11/2021, 13:15
    Poster

    Stress managed magnet designs are being developed to limit the strain and stresses applied to the conductor during powering. The canted cos $\theta$ (CCT) design is one of the proposed solutions. In this design, the conductor is wound around a mandrel: the impregnation process creates a bonding between the two, that can fail when the magnet is powered. The energy releases consequent to the...

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  7. 198. Strain measurements of a combined superconducting magnet on sextupole coils and solenoids during its assembly and excitation (TUE-PO1-715-07)
    Mr Canjie Xin
    16/11/2021, 13:15
    Poster

    A combined superconducting magnet on six sextupole coils and four solenoids are currently developed by the Institute of modern physics of Chinese Academy of Sciences (IMPCAS). As a prototype for the fourth-generation ECR ion source operating at frequency of 45 GHz, each coil is made of a single and brittle Nb3Sn wire. To effectively prevent the wires motion from performance degradations and a...

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  8. 258. The influence of friction between layers of coil on the magneto-mechanical behaviors of YBCO superconducting magnet (TUE-PO1-715-08)
    Dr Qiang Hu (Institute of Modern Physics of Chinese Academy of Science)
    16/11/2021, 13:15
    Poster

    Abstract: The YBCO superconducting coils will cause complex deformation, and even moving between layers under the large Lorentz forces during energization. These will further disturb the magnetic field quality and the operating safety and stability. A more accurate estimation of the magneto-mechanical behaviors of YBCO coil during excitation is a crucial one. However, the conventional finite...

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  9. 528. The pre-compression study for CFETR central solenoid model coil (TUE-PO1-715-09)
    Xianwei Wang
    16/11/2021, 13:15
    Poster

    As a preparation towards the final fabrication of China Fusion Engineering Test Reactor (CFETR) central solenoid coil, the Central Solenoid Model Coil (CSMC) is designed in advance. In order to save the manufacturing cost, the hybrid superconducting magnet is adopted. The coil is comprised of five magnet modules, namely the inner and outer Nb3Sn coils, the top, medium and bottom NbTi coils....

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