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Open AccessArticle

Numerical 3D Simulation of a Full System Air Core Compulsator-Electromagnetic Rail Launcher

Department of Engineering for Energy System, Territory and Construction (DESTEC), University of Pisa, Largo L. Lazzarino 1, 56122 Pisa, Italy
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Appl. Sci. 2020, 10(17), 5903; https://doi.org/10.3390/app10175903
Received: 5 June 2020 / Revised: 5 August 2020 / Accepted: 12 August 2020 / Published: 26 August 2020
(This article belongs to the Special Issue Numerical and Analytical Methods in Electromagnetics)
Multiphysics problems represent an open issue in numerical modeling. Electromagnetic launchers represent typical examples that require a strongly coupled magnetoquasistatic and mechanical approach. This is mainly due to the high velocities which make comparable the electrical and the mechanical response times. The analysis of interacting devices (e.g., a rail launcher and its feeding generator) adds further complexity, since in this context the substitution of one device with an electric circuit does not guarantee the accuracy of the analysis. A simultaneous full 3D electromechanical analysis of the interacting devices is often required. In this paper a numerical 3D analysis of a full launch system, composed by an air-core compulsator which feeds an electromagnetic rail launcher, is presented. The analysis has been performed by using a dedicated, in-house developed research code, named “EN4EM” (Equivalent Network for Electromagnetic Modeling). This code is able to take into account all the relevant electromechanical quantities and phenomena (i.e., eddy currents, velocity skin effect, sliding contacts) in both the devices. A weakly coupled analysis, based on the use of a zero-dimensional model of the launcher (i.e., a single loop electrical equivalent circuit), has been also performed. Its results, compared with those by the simultaneous 3D analysis of interacting devices, show an over-estimate of about 10–15% of the muzzle speed of the armature. View Full-Text
Keywords: air-core pulsed alternator; electromagnetic rail launcher; coupled analysis; computational electromagnetics; integral formulations air-core pulsed alternator; electromagnetic rail launcher; coupled analysis; computational electromagnetics; integral formulations
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MDPI and ACS Style

Consolo, V.; Musolino, A.; Rizzo, R.; Sani, L. Numerical 3D Simulation of a Full System Air Core Compulsator-Electromagnetic Rail Launcher. Appl. Sci. 2020, 10, 5903. https://doi.org/10.3390/app10175903

AMA Style

Consolo V, Musolino A, Rizzo R, Sani L. Numerical 3D Simulation of a Full System Air Core Compulsator-Electromagnetic Rail Launcher. Applied Sciences. 2020; 10(17):5903. https://doi.org/10.3390/app10175903

Chicago/Turabian Style

Consolo, Valentina; Musolino, Antonino; Rizzo, Rocco; Sani, Luca. 2020. "Numerical 3D Simulation of a Full System Air Core Compulsator-Electromagnetic Rail Launcher" Appl. Sci. 10, no. 17: 5903. https://doi.org/10.3390/app10175903

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