Developmental Studies on a Two-Stage Coilgun

This article presents the design, development, and operation of a two-stage induction coilgun developed at the Pulsed Power Laboratory of the Indian Institute of Science, Bengaluru, India. The first two stages of a four-stage induction coilgun have been fabricated and operated in synchronization suc...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2022-10, Vol.50 (10), p.3318-3325
Main Authors: Ram, Ranashree, Thomas, M. Joy
Format: Article
Language:English
Subjects:
Capacitor banks
Capacitors
Coilguns
Coils (windings)
Electromagnetic interference
electromagnetic launchers (EMLs)
Empirical analysis
Finite element method
Parameters
Power sources
Projectiles
pulsed power
Software
Synchronism
Voltage
Winding
Windings
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Summary:This article presents the design, development, and operation of a two-stage induction coilgun developed at the Pulsed Power Laboratory of the Indian Institute of Science, Bengaluru, India. The first two stages of a four-stage induction coilgun have been fabricated and operated in synchronization successfully, launching a 37-g projectile to 28.9 m/s using for each stage a 252-J pulsed power source (PPS). This article shows the computational analysis and the experimental results obtained using the two-stage coilgun developed. The following parameters, viz., number of winding layers of the drive coil, number of winding turns per layer of the drive coil, and the projectile length are varied, keeping the PPS parameters as well as the projectile's outer diameter and mass fixed. The simulation is carried out using a finite element method (FEM)-based software, Ansys Maxwell, and the results are then experimentally verified. Finally, an empirical relationship between the projectile velocity and the charging voltage of the capacitor bank is presented in this article.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2022.3159563