Rail electromagnetic accelerators with an external magnetic field

Abstract

The main problems of using electromagnetic rail accelerators to accelerate solid bodies of the millimeter range are outlined in the paper. A modernized system of biasing a rail gun is presented, its operating principle is described. Mathematical modeling of the rail gun system with and without bias for accelerated bodies of different mass is carried out. The influence of the bias system on the basic parameters of electromagnetic rail accelerators is analyzed.  The acceleration forces acting on the object from the main loop and the bias circuit are plotted, as well as armature velocities and magnetic field induction in the object accelerated. The limits of applicability of the model described are given. Several variants of the design of rail gun bias systems including a multi-stage one are presented. The effect of some of the initial conditions on the acceleration of an object in the channel of the rail electromagnetic accelerator is analyzed. The effectiveness of introducing an external magnetic field in the channel of the accelerator making it possible to increase the speed of the lifter more than twice, while maintaining the resource of rail electrodes, is shown.

About the authors

K. I. Sukhachev

Samara State Aerospace University

Author for correspondence.
Email: kir.sukhachev@gmail.com

Postgraduate student, the Department of Design and Technology of Electronic Systems and Devices

Russian Federation

References

  1. Sukhachev K.I., Syomkin N.D., Piyakov A.V. Solid bodies accelerators. Physics of wave processes and radio systems. 2014. V. 17, no. 2. P. 49-58. (In Russ.)
  2. Postnikov B.V., Fomichev V.P., Fomin V.M. Two-Stage Railgun Pinched Plasma Armature. 11th EML Symposium, Sain-Louis, France. 2002. May 14-17.
  3. Fowler C.M., Peterson D.R., Caird R.S., Erickson D.J., Freeman B.I., King J.C. Explosive flux compression for railgun power sources. IEEE Transaction on Magnetics. 1982. V. 18, no. 1. P 64.
  4. Zhukov B.G., Kurakin R.O., Sakharov V.A., Bobashev S.V., Ponyaev S.A., Reznikov B.I., Rozov S.I. Synchronous acceleration of two millimetersized bodies up to hypersonic velocities in a multichannel railgun. Technical Physics Letters. 2013. V. 39, no. 12. P. 1057-1059. doi: 10.1134/S1063785013120146
  5. Rashleigh S.C. and Marshall R.A. Electromagnetic accelerator of macroparticles to high velocities. Journal of Applied Physics. 1978. V. 49, no. 4. P. 2540-2542. doi: 10.1063/1.325107
  6. Sukhachev K.I., Syomkin N.D. Analysis of potentialities of coil electromagnetic accelerators for the accelerating of ferromagnetic particles. Vestnik of the Samara State Aerospace University. 2013. No 3 (41), part 1. P 235-247. (In Russ.)
  7. Nosov G.V. Defining the parameters of the railgun. Part 1. Calculation at constant current density. Bulletin of the Tomsk Polytechnic University. 2013. V. 322, no.4. P. 65-69. (In Russ.)
  8. Purcell E. Elektrichestvo i mag-netism [Electricity and Magnetism]. Moscow: Nauka Publ., 1983. 439 p.

Statistics

Views

Abstract: 4378

PDF (Russian): 2733

Dimensions

PlumX

Refbacks

  • There are currently no refbacks.

Copyright (c) 2015 VESTNIK of the Samara State Aerospace University

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies