Design and setup of a testing device to investigate a reduced sized attachment system mock up for the ITER EU HCPB-TBM under different mechanical loading conditions |
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| Affiliation: | 1. Graduate School of Science, Shizuoka University, Shizuoka, Japan;2. National Institute for Fusion Science, Gifu, Japan;3. Institute for Applied Mechanics, Kyushu University, Kasuga, Fukuoka, Japan;4. Graduate School of Engineering, Hokkaido University, Sapporo, Japan;5. Department of Material Science, Shimane University, Matsue, Shimane, Japan;6. Hydrogen Isotope Research Center, University of Toyama, Toyama, Japan;1. St Petersburg State Polytechnical University, 29 Polytechnicheskaya, 195251 St Petersburg, Russian Federation;2. Ioffe Physico-Technical Institute, 26 Polytechnicheskaya St., 194021 St Petersburg, Russian Federation;3. ITER Organization, Route de Vinon sur Verdon, 13115 Saint Paul Lez Durance, France;1. Faculty of Engineering and Resource Science, Akita University, 1-1, Tegatagakuen-cho, Akita 010-8502, Japan;2. Fusion Research and Development Directorate, Japan Atomic Energy Agency, 2-166, Omotedate, Obuchi, Rokkasho, Kamikita, Aomori 039-3212, Japan;1. FOM Institute DIFFER, P.O. Box 1207, 3430 BE Nieuwegein, The Netherlands;2. ITER Organization, Route de Vinon sur Verdon, 13115 Saint Paul-lez-Durance, France;3. Heemskerk Innovative Technology, Merelhof 2, 2172 HZ Sassenheim, The Netherlands;4. Princeton Plasma Physics Laboratory, Princeton, NJ 08543-0451, United States;1. Open Joint-Stock Company “N.A. Dollezhall Research and Development Institute of Power Engineering”, (OJSC “NIKIET”), 107140, Malaya Krasnoselskaya 2/8, Moscow, Russian Federation;2. D.V. Efremov Scientific Research Institute of Electrophysical Apparatus, 196641 St. Petersburg, Russian Federation |
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| Abstract: | In order to determine the forces acting on the EU-Helium Cooled Pebble Bed Test Blanket Module (HCPB-TBM) during operation, a measurement system is developed. Therefore, two force reconstruction (FR) methods using measured strain signals are selected that are suitable for the application to the TBM. The first one, the augmented Kalman filter is a combined deterministic-stochastic approach. A second FR method based on the concept of a model predictive controller is proposed in this paper, which uses an optimization algorithm. In order to test the selected methods a testing device has been built which can be used to apply different force excitations on a reduced sized TBM mock up and measure the resulting strain signals of 16 strain gages. A simple tube mock up has been designed and manufactured to test and calibrate the FR algorithms. In addition, a second TBM mock up with attachment system is described. Finally, first results of the FR of a worst-case test case from simulated strain data of the simple tube mock up are presented. |
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| Keywords: | Test Blanket Module Attachment system Force reconstruction |
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