Development of compact explosively driven ferromagnetic seed source for helical magnetic flux compression generator

A compact explosively driven ferromagnetic generator (FMG) is developed for seed power source of helical magnetic flux compression generator (HMFCG). The mechanism of FMG is studied by establishing a magnetoelectric conversion model. Analytical calculations and numerical simulations are conducted on...

Full description

Saved in:
Bibliographic Details
Published inAIP advances Vol. 8; no. 5; pp. 056805 - 056805-6
Main Authors Liu, Peng, Zhang, He, Ma, Shaojie, Shi, Yunlei
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.05.2018
AIP Publishing LLC
Subjects
Computer simulation
Energy conversion efficiency
Explosions
Ferromagnetism
Magnetic flux
Mathematical models
Online AccessGet full text

Cover

More Information
Summary:A compact explosively driven ferromagnetic generator (FMG) is developed for seed power source of helical magnetic flux compression generator (HMFCG). The mechanism of FMG is studied by establishing a magnetoelectric conversion model. Analytical calculations and numerical simulations are conducted on the magnetostatic field of open-circuit magnet in FMG. The calculation method for the magnet’s cross-sectional magnetic flux is obtained. The pulse sources made of different materials and equipped with different initiation modes are experimentally explored. Besides, the dynamic coupling experiments of FMG and HMFCG are carried out. The results show that, N35 single-ended and double-ended initiating FMGs have an energy conversion efficiency ηt not less than 14.6% and 24.4%, respectively; FMG has an output pulse current not less than 4kA and an energy of about 3J on 320nH inductive load; HMFCG experiences energy gains of about 2-3 times. FMG and HMFCG can be coupled to form a full-blast electrical driving pulse source.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.5006340