A 10 MJ cryogenic inductor

Hackworth, D.T.; Deis, D. W.; Eckels, P. W.; Marschik, D.

doi:10.1109/tmag.1986.1064673

Cited by 9 publications

(4 citation statements)

References 2 publications

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“…Single coil setups have been built in combination with HPGs [32], [33] or huge battery banks [18], [34], [35]. They are needed for the generation of high voltages, as HPGs and batteries are usually operated at a few hundred volts.…”

Section: A Single Coilmentioning

confidence: 99%

Review of Inductive Pulsed Power Generators for Railguns

Liebfried

2017

IEEE Trans. Plasma Sci.

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Abstract-This literature review addresses inductive pulsed power generators and their major components. Different inductive storage designs like solenoids, toroids and force-balanced coils are briefly presented and their advantages and disadvantages are mentioned. Special emphasis is given to inductive circuit topologies which have been investigated in railgun research such as the XRAM, meat grinder or pulse transformer topologies. One section deals with opening switches as they are indispensable for inductive storages and another one deals briefly with SMES for pulsed power applications. In the end, the most relevant inductor systems which were realized in respect to railgun research are summarized in a table, together with its main characteristics.

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Section: A Single Coilmentioning

confidence: 99%

Review of Inductive Pulsed Power Generators for Railguns

Liebfried

2017

IEEE Trans. Plasma Sci.

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“…With the advancements in large power supplies over the past few decades, the muzzle velocity of the projectile has been greatly increased, and the equipment has gradually become mature for practical applications [7]- [10]. The power of the power supply designed by [11] reaches 10 MJ, and the energy density of the power supply designed in the study [12] reaches 500 kJ/m 3 , basically satisfying the energy supply requirements of the electromagnetic railgun. In terms of weapons applications, in 1978, the US Department of Defense established a national advisory committee and technical department for evaluating electromagnetic railgun research.…”

Section: Introductionmentioning

confidence: 96%

Ammunition Reliability Against the Harsh Environments During the Launch of an Electromagnetic Gun: A Review

2019

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Electromagnetic railguns have an advantage over traditional chemical propulsion weapons, in that the projectile can be accelerated to extremely high speeds and effective damage can be achieved. However, during the launch from an electromagnetic railgun, the ammunition will be subject to a harsh environment, including very strong and violently changing electromagnetic fields, high-g acceleration impact, high temperatures, and so on; and thus, the reliability of the fuze is threatened, and the safety and damage effectiveness of the ammunition will be seriously degraded. In this paper, the harsh environment during the launch process is first reviewed, including the experimental data, the modeling, and simulation of the multiphysics fields. In particular, the coupling effect of these multiphysics fields are revealed, which aggravates the extreme environment. Furthermore, this paper reviews the protection of fuzes against strong magnetic fields and high-g impacts from three aspects, namely, materials, devices, and systems, and presents prospects for future research. This review will guide studies on the protection of fuzes and the stability of ammunition, as well as promote the effectiveness of electromagnetic railguns.INDEX TERMS Electromagnetic launching, fuze, reliability, harsh environment of multiphysics fields, electromagnetic shielding, anti-high-g impact technology.

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“…However, they are not capable of delivering power at the rate required for a large railgun. Several early railgun systems were successfully operated using an intermediate inductive energy storage system [8]- [12], and future studies should evaluate this approach for the Navy. This arrangement would utilize batteries or homopolar generators to charge up an inductive energy store (one or more large coils) that can then be discharged into the railgun at the required power levels.…”

Section: Pulsed Powermentioning

confidence: 99%

Development of a naval railgun

et al. 2005

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The U.S. Navy is considering the development of electromagnetic railguns for future ships for naval surface-fire support (NSFS) and other missions. To reach long ranges, muzzle velocities in excess of 2000 m/s with projectile flight mass of 16 kg and above are needed. Relatively high firing rates are desired; typically 6-12 rounds per minute, so substantial power demands will be made on the ship. For an electrically driven ship, as in the DD(X) concepts presently being explored by the Navy, an existing electrical infrastructure would be in place that could be modified to recharge the pulsed power supplies for the railgun. This study focused on the railgun, the pulsed power system needed to drive the gun, the power system needed to restore the energy required to match the firing rate, and special ship interfaces. Railgun concepts and sizing for the NSFS mission were undertaken, and research and development issues of importance for the success of a future system were identified. Recommendations for analytical and experimental studies that should be undertaken to further address these issues are provided.Index Terms-Electromagnetic railgun, fire support, kinetic energy, projectile, pulsed power.

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A 10 MJ cryogenic inductor

Cited by 9 publications

References 2 publications

Review of Inductive Pulsed Power Generators for Railguns

Review of Inductive Pulsed Power Generators for Railguns

Ammunition Reliability Against the Harsh Environments During the Launch of an Electromagnetic Gun: A Review

Development of a naval railgun

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