Anti-ship Missile Warhead Technology Research

In naval battles, with the gradually improvement of the ship defensive structure, thedamage capability of the anti-ship weapons is being challenged. As the representative of theanti-ship weapons, the development of anti-ship missile gets widely attention. The anti-shipmissile warhead is the direct kill unit, in order to raise its damage capability, the present paperselect the scheme of tandem warhead. In the scheme, the front charge is annular shapedcharge, and the follow-through charge select semi-armor-piercing warhead.Combine with the characteristics of annular shaped charge, the primary factors whichhave influence on the mold stability of the annular penetrator are analyzed and summarized.The annular liner with variation thickness which presents arc-cone shape on its cross sectionis designed, and the formation of annular EFP is simulated based on the non-linear finiteelement software. Through simulation comparison, the rationality for design of variationthickness is verified, and the superiority of the annular liner which presents arc-cone shape onits cross section is manifested. Then the factors which influence on performance of annularpenetrator such as curvature radius, cone angle, top thickness of liner, height of charge andthickness of shell is discussed. Base on grey relation analysis theory, the correlation degreebetween the influencing factors and the stability of annular penetrator, factors and thepenetration performance of penetrator is obtained by multilevel discrimination analyzing.According to the structure characteristics, the ship can be equivalent to thin multi-layeredspaced targets. The simulating process of the front charge penetrate target prove that theannular penetrator is able to fly steadily in long distance, and it has advantage at the aspect ofpenetrating aperture. Through establishing projectiles with different nose shape, the model offollow-through charge penetrate multi-layered spaced targets in different velocity isestablished. At the same time, Mutative feature of projectile velocity and acceleration isanalyzed through detailed researching the process of penetrating. Take overload of projectile,attitude of flight and remaining velocity as reference, the performance contrast on differentnose shape can be obtain.The development condition of anti-ship warhead is firstly researched. The research proposes the design scheme of anti-ship tandem warhead and finishes the penetratingsimulation. The results of this study can provide reference to the research work for anti-shiptechnique.