Structural analysis and optimization for ITER upper ELM coil |
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| Affiliation: | 1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 200031, China;2. ITER Organization, Route de Vinon sur Verdon, 13115 Saint Paul-lez-Durance, France;3. Princeton Plasma Physics Laboratory, NJ 08543, USA;1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China;2. College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;1. EcoTopia Science Institute, Nagoya University, Nagoya 464-8603, Japan;2. Genesia Co., Mitaka, Tokyo 181-0013, Japan;3. Japan Atomic Energy Agency, Naka, Ibaraki 801-1, Japan;4. Institute of Advanced Energy, Kyoto University, Uji 611-0011, Japan;5. Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan |
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| Abstract: | ITER ELM coils are used to mitigate or suppress Edge Localized Modes (ELM), which are located between the vacuum vessel (VV) and shielding blanket modules and subject to high radiation levels, high temperature and high magnetic field. These coils shall have high heat transfer performance to avoid high thermal stress, sufficient strength and excellent fatigue to transport and bear the alternating electromagnetic force due to the combination of the high magnetic field and the AC current in the coil. Therefore these coils should be designed and analyzed to confirm the temperature distribution, strength and fatigue performance in the case of conservative assumption. To verify the design structural feasibility of the upper ELM coil under EM and thermal loads, thermal, static and fatigue structural analysis have been performed in detail using ANSYS. In addition, design optimization has been done to enhance the structural performance of the upper ELM coil. |
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| Keywords: | ITER ELM coil Thermal analysis Static structural analysis Fatigue structural analysis Optimization |
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