Journal of Applied Mechanics and Technical Physics

, Volume 40, Issue 5, pp 784–790 | Cite as

Composite electrodynamic liner

  • R. M. Zaidel’
Article

Abstract

A multilayer liner made of a composition of two materials with different conductivities is considered. The fractions of the components in the layers are varied so that the effective conductivity increases in the direction of magnetic-field diffusion under a special law that allows one to obtain an analytical solution. It is shown for a particular example that using a temperature criterion taking into account the density, heat capacity, and thermal conductivity of the components, it is possible to produce a liner for which the magnetic-field amplitude can be increased by 30% and the velocity and energy can be increased by a factor of 1.6 and 2.7, respectively, compared to the original version of a homogeneous metal liner.

Keywords

Liner Liner Material Pulse Magnetic Field Composite Liner Homogeneous Liner 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Academician A. D. Sakharov,Scientific Papers [in Russian], Tsentrkom, Moscow (1995).MATHGoogle Scholar
  2. 2.
    A. I. Pavlovskii and R. Z. Lyudaev, “Magnetic cumulation,” in:Problems of Modern Experimental and Theoretical Physics. In Commemoration of the 80th Anniversary of Academician Yu. B. Khariton [in Russian], Nauka, Leningrad (1984), pp. 206–270.Google Scholar
  3. 3.
    E. I. Bichenkov and G. A. Shvetsov, “Megagauss magnetic fields. Physics. Techniques. Applications,”Prikl. Mekh. Tekh. Fiz.,38, No. 4, 90–102 (1997).Google Scholar
  4. 4.
    H. Knoepfel,Pulsed High Magnetic Fields, North Holland, Amsterdam-London (1970).Google Scholar
  5. 5.
    A. D. Podol’tsev and I. N. Kucheryavaya, “Computerized modeling of transient processes in an electrodynamic accelerator with allowance for nonlinear diffusion of the magnetic field,” Preprint. Inst. of Electrodynamics, Kiev (1987).Google Scholar
  6. 6.
    V. F. Nikitin and N. N. Smirnov, “Generation of an electromagnetic field in the nonsymmetric rails and protecting armature of a railgun with an increasing current pulse,”Prikl. Mekh. Tekh. Fiz.,38, No. 1, 11–20 (1997).MATHGoogle Scholar
  7. 7.
    Yu. A. Alekseev, A. A. Belikov, M. N. Kazeev, et al., “Ablation in electromagnetic, railgun accelerators,” Preprint No. 984/7, Institute of Atomic Energy, Russian Academy of Sciences, Moscow (1989).Google Scholar
  8. 8.
    V. B. Zheleznyi, A. V. Zagorskii, S. S. Katsnel’son, et al., “Theoretical and experimental modeling of the operation of a rail accelerator,”Prikl. Mekh. Tekh. Fiz., No. 2, 32–36 (1993).Google Scholar
  9. 9.
    V. N. Bondaletov, E. N. Ivanov, S. A. Kalikhman, et al., “Throwing of conductors in an ultrahigh pulsed field,” in:Ultrahigh Magnetic Fields. Physics. Techniques. Applications, Proc. III Int. Conf. on Magagauss Magnetic Field Generation and Related Topics (Novosibirsk, 13–17 June, 1983) [in Russian], Nauka, Moscow (1984), pp. 234–238.Google Scholar
  10. 10.
    I. M. Karpova, V. V. Titkov, and G. A. Shneerson, “Eddy currents in nonhomogeneous media and the problem of decreasing Joulean heating in a high pulsed magnetic field,”Izv. Akad. Nauk SSSR. Énerget. Transp., No. 3, 122–127 (1988).Google Scholar
  11. 11.
    G. A. Shneerson, “Minimization of Joule heating in magnetic-field diffusion into a medium with conductivity depending on coordinates,”Pis’ma Zh. Tekh. Fiz.,18, No. 6, 18–21 (1992).Google Scholar
  12. 12.
    I. M. Karpova, A. N. Semakhin, V. V. Titkov, and G. A. Shneerson, “Analysis of methods of lowering heating and thermal stresses in coils in high pulsed magnetic fields,” in:Proc. 5th Int. Conf. on Magagauss Magnetic Field Generation and Related Topics, Novosibirks (1989), pp. 209–215.Google Scholar
  13. 13.
    S. V. Stankevich and G. A. Shvetsov, “Ultimate velocities in acceleration of plates by a magnetic field,”Prikl. Mekh. Tekh. Fiz.,5, No. 3, 13–22 (1994).Google Scholar
  14. 14.
    Handbook on Electrotechnical Materials [in Russian], Energoatomizdat, Moscow-Leningrad, Vol. 2 (1987); Vol. 3 (1988).Google Scholar

Copyright information

© Kluwer Academic/Plenum Publishers 1999

Authors and Affiliations

  • R. M. Zaidel’

There are no affiliations available

Personalised recommendations