Stable and reproducible production of high velocity projectile in ISAS railgun (HYPAC)

Author

Kawashima, Nobuki ; Yamori, Akira ; Yanagisawa, Masahisa ; Kubo, Haruya ; Kohno, M. ; Teii, Shinriki

Volume

29

Issue

1

fYear

1993

fDate

1/1/1993 12:00:00 AM

Firstpage

431

Lastpage

434

Abstract

The ISAS (Institute of Space and Astronautical Science) railgun HYPAC (power supply: 6 mF, 10 kV, 300 kJ; rail: 13 mmφ×2 m bore) has been developed with a particular emphasis on stable and reproducible production of a high-velocity projectile so that it can actually be used for scientific impact experiments. A maximum velocity of 7.45 km/s has been obtained for a 0.87 g projectile in 4 mF, 288 kJ operation. The stability and reproducibility of HYPAC are so good that a velocity greater than 6 km/s can always be obtained with a prediction within ±3% before the experiment. HYPAC is now extensively used for impact experiments for laboratory simulation in the field of planetary science

Keywords

electromagnetic launchers; projectiles; 10 kV; 13 mm; 2 m; 288 kJ; 300 kJ; 7450 m/s; ISAS railgun; Institute of Space and Astronautical Science; high velocity projectile; impact experiments; planetary science; Boring; Instruction sets; Laboratories; Power supplies; Production; Projectiles; Railguns; Rails; Reproducibility of results; Stability;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.195613

Filename

195613