| At present, the relevant short-range anti-missile warhead fragments is mainly used theform of kinetic energy interceptors, such as focusing warhead, controllable discrete rod anddirectional warhead However, warhead, with deep penetration has minimal effects ondamaging penetration. Sunder armor oblique penetration warhead is consisted of high energyand high penetration. The use of this type of warhead greatly improves the efficiency ofshort-range anti-missile will.Based on the above research, this paper uses ANSYS/LS-DYNA finite element analysissoftware to simulate the phenomenon which is jet flow formed110°single cone angle liner indifferent incidence angles penetrates high speed movement target board with certain velocitygradient as while, preliminary, explore the basic laws of penetration capability, jet erosion andpenetration aftereffect.The results indicates that (1) Jet has greater impact on its low-middle segment, whendisturbed by transverse interference including undermining its stability, turning down armorpower, while less interference on head of the high-speed jet segment.(2)Jet penetrationcapability (ie, the axial velocity of the head after the jet penetration)decreases gradually;(3)With the target board movement speed increasing, capability of jet penetration decreasesgradually;(4)With the increasing of incident angle, jet erosion (ie, jet radial velocity, throughthe pore volume) increases gradually;(5)With target moving fast, ability of the jet erosionincreases gradually;(6) With the increasing of incident angle, aftereffect(ie, after thepenetration v2d) decreases gradually.(7) With the target plate movement speed increase,aftereffect role (i.e. v2d) gradually decreases;(8)While the incident angle θ belongs the rangefrom30to55, jet flow after penetration can detonate drug of warhead effectively and haveefficient interceptor on missiles.Results of this study may provide a reference to the development of anti-burrowed deep penetration weapons. |
PDF Full Text Request