Helical magnetocumulative generators with magnetic flux amplification: Comparative advantages of amplification schemes and the operational efficiency of generators with dynamic transformation

Bazanov, A. A.

doi:10.1134/s1063784211090064

Cited by 2 publications

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“…Basic HEMG elements are a single-turn or multiturn cylindrical helix with isolated coils and a cylindrical or conic central tube (armature), filled with a high-explosive, as shown in Fig. 1 [4]. The magnetic flux is compressed in a space between the tube and helix during radial tube expansion under the action of explosion product's pressure.…”

Section: Introductionmentioning

confidence: 99%

Fundamentals of Electrodynamic Technique of Numerical Designing of Helical High-Explosive Magnetic Generators

Pak

Babich

Ivanovskii

2015

IEEE Trans. Plasma Sci.

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Presented are the fundamentals of a consistently electrodynamic 2-D technique of designing helical explosive magnetic generators by numerical simulation on the basis of nonuniform equation for the vector potential with a priori set right-side term. The technique is demonstrated by solving a 1-D problem. A model 2-D problem a closed coil over a tube is analyzed. A coil current rupture is simulated. Concepts of vacuum inductance and free magnetic flux are discussed. Magnetic flux losses in the skin layer and free magnetic flux variation are calculated for an instant compression of an electric contour. A 2-D nonstationary problem a closed coil over a tube is solved. A critical mode of the generator operation is analyzed. A technique is described for solving a problem multiturn helix over a tube.Index Terms-Fully electrodynamic method, helical high-explosive magnetic generator (EMG), numerical simulation, vector potential.

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Section: Introductionmentioning

confidence: 99%