Apparatus for and method of operating a cylindrical pulsed induction mass launcher

Duggin, Billy W; Widner, Melvin M

Title: Apparatus for and method of operating a cylindrical pulsed induction mass launcher

Abstract

An electromagnetic cylindrical projectile mass launcher and a method of operation is provided which includes a cylindrical projectile having a conducting armature, a cylindrical barrel in which the armature is received, a plurality of electromagnetic drive coil stages, a plurality of pulse energy sources, and a pulsed power arrangement for generating magnetic pulses forming a pulsed magnetic wave along the length of the launcher barrel. The pulsed magnetic wave provides a propelling force on the projectile along the drive coil. The pulsed magnetic wave of the drive coil stages is advanced along the armature faster than the projectile to thereby generate an induced current wave in the armature. The pulsed generation of the magnetic wave minimizes electromagnetic heating of the projectile and provides for smooth acceleration of the projectile through the barrel of the launcher.

Inventors:

Cowan, Jr., Maynard ^[1]; Duggin, Billy W ^[2]; Widner, Melvin M ^[2]

(Albuquerque, NM)
Albuquerque, NM

Issue Date:: 1992-01-01

Research Org.:: AT&T

OSTI Identifier:: 868363

Patent Number(s):: 5125321

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F41 - WEAPONS F41B - WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE

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F - MECHANICAL ENGINEERING F41 - WEAPONS F41B - WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE
F41B6/00 - Electromagnetic launchers {

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DOE Contract Number:: AC04-76DP00789

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: apparatus; method; operating; cylindrical; pulsed; induction; mass; launcher; electromagnetic; projectile; operation; provided; conducting; armature; barrel; received; plurality; drive; coil; stages; pulse; energy; sources; power; arrangement; generating; magnetic; pulses; forming; wave; length; provides; propelling; force; advanced; faster; generate; induced; current; generation; minimizes; heating; smooth; acceleration; pulsed magnetic; magnetic wave; energy sources; energy source; pulsed power; drive coil; pulse energy; induced current; magnetic pulse; magnetic heat; pulsed magnet; cylindrical barrel; cylindrical projectile; mass launcher; /89/124/318/

Citation Formats


                    Cowan, Jr., Maynard, Duggin, Billy W, and Widner, Melvin M. Apparatus for and method of operating a cylindrical pulsed induction mass launcher.  United States: N. p., 1992. 
        Web.

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                    Cowan, Jr., Maynard, Duggin, Billy W, & Widner, Melvin M. Apparatus for and method of operating a cylindrical pulsed induction mass launcher.  United States.

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                    Cowan, Jr., Maynard, Duggin, Billy W, and Widner, Melvin M. Wed .  
        "Apparatus for and method of operating a cylindrical pulsed induction mass launcher".  United States.  https://www.osti.gov/servlets/purl/868363.

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@article{osti_868363,

  title        = {Apparatus for and method of operating a cylindrical pulsed induction mass launcher},

  author       = {Cowan, Jr., Maynard and Duggin, Billy W and Widner, Melvin M},

  abstractNote = {An electromagnetic cylindrical projectile mass launcher and a method of operation is provided which includes a cylindrical projectile having a conducting armature, a cylindrical barrel in which the armature is received, a plurality of electromagnetic drive coil stages, a plurality of pulse energy sources, and a pulsed power arrangement for generating magnetic pulses forming a pulsed magnetic wave along the length of the launcher barrel. The pulsed magnetic wave provides a propelling force on the projectile along the drive coil. The pulsed magnetic wave of the drive coil stages is advanced along the armature faster than the projectile to thereby generate an induced current wave in the armature. The pulsed generation of the magnetic wave minimizes electromagnetic heating of the projectile and provides for smooth acceleration of the projectile through the barrel of the launcher.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1992},

  month        = {1}

}

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Works referenced in this record:

The electromagnetic θ gun and tubular projectiles
journal, January 1982

Burgess, T.; Cnare, E.; Oberkampf, W.
IEEE Transactions on Magnetics, Vol. 18, Issue 1, p. 46-59
https://doi.org/10.1109/TMAG.1982.1061811

The reconnection gun
journal, November 1986

Cowan, M.; Cnare, E.; Duggin, B.
IEEE Transactions on Magnetics, Vol. 22, Issue 6
https://doi.org/10.1109/TMAG.1986.1064637

Mesh-matrix analysis method for electromagnetic launchers
journal, January 1989

Elliott, D. G.
IEEE Transactions on Magnetics, Vol. 25, Issue 1
https://doi.org/10.1109/20.22527

Electromagnetic induction launchers
journal, November 1986

Driga, M.; Weldon, W.; Woodson, H.
IEEE Transactions on Magnetics, Vol. 22, Issue 6
https://doi.org/10.1109/TMAG.1986.1064639

Arc-commutated launcher
journal, January 1982

Mongeau, P.; Williams, F.
IEEE Transactions on Magnetics, Vol. 18, Issue 1
https://doi.org/10.1109/TMAG.1982.1061807

Traveling-wave induction launchers
journal, January 1989

Elliott, D. G.
IEEE Transactions on Magnetics, Vol. 25, Issue 1
https://doi.org/10.1109/20.22526

Induction launcher design considerations
journal, January 1989

Driga, M. D.; Weldon, W. F.
IEEE Transactions on Magnetics, Vol. 25, Issue 1
https://doi.org/10.1109/20.22525

Design and power conditioning for the coil-gun
journal, January 1989

Zabar, Z.; Naot, Y.; Birenbaum, L.
IEEE Transactions on Magnetics, Vol. 25, Issue 1, p. 627-631
https://doi.org/10.1109/20.22613

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Title: Apparatus for and method of operating a cylindrical pulsed induction mass launcher

Abstract

Citation Formats

The electromagnetic θ gun and tubular projectiles journal, January 1982

The reconnection gun journal, November 1986

Mesh-matrix analysis method for electromagnetic launchers journal, January 1989

Electromagnetic induction launchers journal, November 1986

Arc-commutated launcher journal, January 1982

Traveling-wave induction launchers journal, January 1989

Induction launcher design considerations journal, January 1989

Design and power conditioning for the coil-gun journal, January 1989

The electromagnetic θ gun and tubular projectiles
journal, January 1982

The reconnection gun
journal, November 1986

Mesh-matrix analysis method for electromagnetic launchers
journal, January 1989

Electromagnetic induction launchers
journal, November 1986

Arc-commutated launcher
journal, January 1982

Traveling-wave induction launchers
journal, January 1989

Induction launcher design considerations
journal, January 1989

Design and power conditioning for the coil-gun
journal, January 1989