Modelling and Simulation of a Railgun powered by a Capacitor Bank

  • S. G. Tatake Armament Research & Development Establishment, Pune
  • K. J. Daniel Armament Research & Development Establishment, Pune
  • A. A. Ghosh Armament Research & Development Establishment, Pune
  • K. P. Tokekar Armament Research & Development Establishment, Pune
  • K. R. Rao Armament Research & Development Establishment, Pune
  • I. I. Khan Armament Research & Development Establishment, Pune
Keywords: Hypervelocity projectiles, Optimized launcher pressure, Payload velocity

Abstract

A railgun powered by a capacitor bank was developed to launch hypervelocity projectiles. The efficiency of the gun to a large extent will determine its feasibility for weapon applications. A simulation code was developed to predict the performance of the railgun. The railgun has been modelled as a time-varying impedance to determine the currents and the voltages from the power source. In the railgun circuit the currents and the voltages are of the order of hundreds of kiloamperes. Even very low impedances of the order of milli-ohm and micro-henry are substantial sources of energy losses. The measured and simulation currents at peak values agree with in 10%, validating the model. The simulation code accurately predicts the energy distribution in the system. Maximization of the projectile energy leads to improved and efficient designs. The simulation also leads to the optimized launcher pressure and payload velocity.

Author Biographies

S. G. Tatake, Armament Research & Development Establishment, Pune
Armament Research & Development Establishment,Pune
K. J. Daniel, Armament Research & Development Establishment, Pune
Armament Research & Development Establishment, Pune.
A. A. Ghosh, Armament Research & Development Establishment, Pune
Armament Research & Development Establishment,Pune.
K. P. Tokekar, Armament Research & Development Establishment, Pune
Armament Research & Development Establishment,Pune.
K. R. Rao, Armament Research & Development Establishment, Pune
Armament Research & Development Establishment,Pune.
I. I. Khan, Armament Research & Development Establishment, Pune
Armament Research & Development Establishment,Pune
Published
2013-01-01
How to Cite
TatakeS., DanielK., GhoshA., TokekarK., RaoK., & KhanI. (2013). Modelling and Simulation of a Railgun powered by a Capacitor Bank. Defence Science Journal, 44(2), 131-137. https://doi.org/10.14429/dsj.44.4160
Section
Special Issue Papers