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Model-Based System Engineering Framework for Superconducting Accelerator Magnet Design / Maciejewski, Michał (ETH, Zurich (main)) ; Auchmann, Bernhard (CERN ; PSI, Villigen) ; Araujo, Douglas Martins (PSI, Villigen) ; Vallone, Giorgio (LBNL, Berkeley) ; Leuthold, Juerg (ETH, Zurich (main)) ; Smajic, Jasmin (ETH, Zurich (main))
The design specification of future high-field accelerator magnets require innovation in and integration of multiple disciplines. Numerical models underpin each step of the design. [...]
2023 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4003105 External link: accepted manuscript

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Conceptual Design of the FCC-hh Dipole Circuits With Integrated CLIQ Protection System / Prioli, Marco (CERN ; INFN, Milan) ; Auchmann, Bernhard (CERN ; PSI, Villigen) ; Bortot, Lorenzo (CERN) ; Maciejewski, Michał (CERN ; Lodz U. Tech. (main)) ; Salmi, Tiina (Tampere U. of Tech.) ; Verweij, Arjan (CERN)
The Future Circular Collider (FCC-hh) project is a conceptual study whose goal is to design the successor of the Large Hadron Collider, increasing the collision energy from 14 to 100 TeV. The energy stored in the 16-T superconducting dipole magnets and the length of the sectors composing the 100-km FCC tunnel are considerably larger than those in present accelerators. [...]
2019 - 9 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4703309 Fulltext: PDF;

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Coupling of Magneto-Thermal and Mechanical Superconducting Magnet Models by Means of Mesh-Based Interpolation / Maciejewski, Michał (CERN) ; Bayrasy, Pascal ; Wolf, Klaus ; Wilczek, Michał ; Auchmann, Bernhard ; Griesemer, Tina ; Bortot, Lorenzo (CERN) ; Prioli, Marco (CERN) ; Fernandez Navarro, Alejandro Manuel ; Schöps, Sebastian et al.
In this paper we present an algorithm for the coupling of magneto-thermal and mechanical finite element models representing superconducting accelerator magnets. The mechanical models are used during the design of the mechanical structure as well as the optimization of the magnetic field quality under nominal conditions. [...]
arXiv:1712.10191.- 2017-12-25 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 28 (2017) 4900905 Fulltext: PDF; External links: 00004 Comparison of the Lorentz force transfer at $t=14~\si{\milli\second}$ between COMSOL (left) and ANSYS (right) models.; 00000 Scheme of the one-way information exchange between magneto-thermal (red) and mechanical (black) models.; 00005 Equivalent stress in the coil at $t=14~\si{\milli\second}$.; 00001 Schematic of the standalone circuit with an 11 T dipole magnet powered by a power converter (PC) with a crowbar (S$\mathsf{_{CR}}$). Magnet is protected by a CLIQ system modelled as a charged capacitor bank and a thyristor triggered at $t=0~\si{\second}$.; 00002 Time evolution of the current discharge in two poles of a magnet following the CLIQ triggering. Dashed lines indicate time points for which results of mechanical analysis are reported.; 00003 Temperature comparison at $t=14~\si{\milli\second}$ between COMSOL (left) and ANSYS (right) models.
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4900905

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Optimized field/circuit coupling for the simulation of quenches in superconducting magnets / Garcia, Idoia Cortes (Darmstadt, Tech. U.) ; Schöps, Sebastian (Darmstadt, Tech. U.) ; Maciejewski, Michał (CERN ; Lodz U.) ; Bortot, Lorenzo (CERN) ; Prioli, Marco (CERN) ; Auchmann, Bernhard (CERN ; PSI, Villigen) ; Verweij, Arjan (CERN)
In this paper, we propose an optimized field/circuit coupling approach for the simulation of magnetothermal transients in superconducting magnets. The approach improves the convergence of the iterative coupling scheme between a magnetothermal partial differential model and an electrical lumped-element circuit. [...]
arXiv:1702.00958.- 2017 - 7 p. - Published in : IEEE J. Multiscale Multiphys. Comput. Tech. 2 (2017) 97-104 Fulltext: PDF;

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Application of the Waveform Relaxation Technique to the Co-Simulation of Power Converter Controller and Electrical Circuit Models / Maciejewski, Michał (CERN) ; Garcia, Idoia Cortes (Darmstadt, Tech. U.) ; Schöps, Sebastian (Darmstadt, Tech. U.) ; Auchmann, Bernhard (PSI, Villigen ; CERN) ; Bortot, Lorenzo (CERN) ; Prioli, Marco (CERN) ; Verweij, Arjan P. (CERN)
In this paper we present the co-simulation of a PID class power converter controller and an electrical circuit by means of the waveform relaxation technique. The simulation of the controller model is characterized by a fixed-time stepping scheme reflecting its digital implementation, whereas a circuit simulation usually employs an adaptive time stepping scheme in order to account for a wide range of time constants within the circuit model. [...]
arXiv:1704.02839.- 2017-08 - 6 p. - Published in : (2017) , pp. 837-842
Fulltext: PDF;
In : 22nd International Conference on Methods and Models in Automation and Robotics, Miedzyzdroje, Poland, 28 - 31 Aug 2017, pp.837-842

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Automated Object-Oriented Simulation Framework for Modelling of Superconducting Magnets at CERN / Maciejewski, Michał
The thesis aims at designing a flexible, extensible, user-friendly interface to model electro thermal transients occurring in superconducting magnets [...]
CERN-THESIS-2014-317 - 137.

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Se også: lignende forfatternavn
17	Maciejewski, M
1	Maciejewski, M.
4	Maciejewski, Maciej
1	Maciejewski, Mateusz
19	Maciejewski, Michal

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