NDLI: A comparison of co-energy and lorenz force based simulations of rail guns

Content Provider	IEEE Xplore Digital Library
Author	Hodge, C.G. Flower, J.O. Macalindin, A.
Copyright Year	2009
Description	Author affiliation: Warwick Manufacturing Group, Department of Engineering, University of Warwick, Coventry, CV4, 7AL, United Kingdom (Flower, J.O.) \|\| BMT Defence Services Ltd, Maritime House 210 Lower Bristol Road, Bath, BA2 3DQ United Kingdom (Hodge, C.G.; Macalindin, A.)
Abstract	Rail guns are serious contenders for future naval weapon systems because of their ability to overcome the speed limitations of chemically propelled shells. Muzzle velocities in excess of 2km/s are achievable by rail guns and this provides ranges far in excess of current capability. In addition this speed allows the kinetic energy of around 60 MJ alone to provide the destructive effect. The absence of high energy explosive in the warhead also simplifies ship design by the removal of the need for magazines. However such performance requires, for a 20 kg projectile, very large amounts of stored electrical power, perhaps in excess of 200 MJ, together with an allocation of up to 20 MW steady power generation to sustain a firing rate of 6 rounds per minute. A previous paper used a co-energy analysis to explore the ship integration issues such as heat management and rail stresses arising from the operation of a rail gun. This paper extends the granularity of the physical simulation of the rail gun's operation by using a finite element approach based on Ampere's law of magnetic induction and compares its results to those of the original co-energy analysis.
Starting Page	157
Ending Page	164
File Size	435075
Page Count	8
File Format	PDF
ISBN	9781424434381
DOI	10.1109/ESTS.2009.4906509
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-04-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rails Guns Weapons Projectiles Propulsion Explosives Magnetic analysis Kinetic energy Marine vehicles Chemicals
Content Type	Text
Resource Type	Article

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