Transient Analysis of a Railgun with Iron Core

Waindok, Andrzej; Piekielny, Paweł

doi:10.15199/48.2017.02.33

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…There are only small visible differences arising from the different velocities of the projectile. It should be mentioned that a very high repeatability of shots for both constructions was obtained (Waindok and Piekielny, 2017). On this basis, a comparative analysis of the effectiveness of investigated railguns could be carried out.…”

Section: Calculation and Measurement Resultsmentioning

confidence: 93%

Analysis of an iron-core and ironless railguns powered sequentially

Waindok

Piekielny

2018

COMPEL

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Purpose The purpose of this paper is to calculate and measure transients for two different constructions of electrodynamic accelerators (ironless and iron-core) supplied by a three-section power system (three capacitor banks). The optimization of power supply parameters (switch-on times and capacitances of individual sections) in terms of system efficiency has been carried out. Design/methodology/approach Calculations have been carried out using a field-circuit model. For three-dimensional magnetostatic analysis, the Maxwell software and finite element method (FEM) were used, while for circuit model, the Matlab/Simulink software was implemented. For optimization of the supply system parameters, the genetic algorithm was used. The mathematical models were verified experimentally by using the original laboratory stand. Findings The efficiency of the system is much higher in case of iron-core accelerator. In both cases, the results obtained for optimized supply settings are only slightly better than those obtained by simultaneously switching on the thyristors and for symmetrical capacity division. Research limitations/implications Due to the presented field-circuit model, eddy currents in rails have been neglected. In the field model, there was no possibility to combine current flow calculations with moving of the projectile. Originality/value Using the presented filed-circuit model, both electrical and mechanical transients could be calculated with sufficient precision. Thus, it could be used in the optimization of supply system. The solution time is low compared with the solution time of the transient field model.

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Section: Calculation and Measurement Resultsmentioning

confidence: 93%

Analysis of an iron-core and ironless railguns powered sequentially

Waindok

Piekielny

2018

COMPEL

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“…The ferromagnetic cores (Figs. 2(a) and 2(b)) were used in order to focus the magnetic field lines in the projectile area [16]. In the case of the ICPM construction, permanent magnets as an additional source of a magnetic field (NdFeB) were implemented [17], (Figs.…”

Section: Physical Modelsmentioning

confidence: 99%

Characteristics simulations of the electrodynamic railgun different constructions and their measurement verification

2024

Archives of Electrical Engineering

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Dynamic characteristics for three types of railgun constructions were simulated and measured in this work. The simplest construction is the iron-less (IL) railgun, while the two other ones (IC and ICPM) have an iron-core. The iron-core permanent magnet (ICPM) railgun additionally has permanent magnets. To compare their characteristics, similar dimensions of the rails and iron cores were adopted, and the same power supply system was used. Numerical magnetic field analyses and our analytical models have been used to determine the electromagnetic parameters. They were verified experimentally. The transient states of the railguns were studied with our field-circuit mathematical model, and their results were also verified by experiments.

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Transient Analysis of a Railgun with Iron Core

Cited by 2 publications

References 11 publications

Analysis of an iron-core and ironless railguns powered sequentially

Analysis of an iron-core and ironless railguns powered sequentially

Characteristics simulations of the electrodynamic railgun different constructions and their measurement verification

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