活性壳体温压战斗部对相控阵雷达天线的毁伤效应

Damage Effect of Thermobaric Warhead with Reactive Casing on Phased-array Radar Antenna

研究活性壳体与温压炸药组合战斗部的威力,以及对相控阵雷达天线靶标的毁伤效应,以期提升对其的毁伤效果,并为相关战斗部设计提供支撑。设计活性壳体、20号钢壳体2种同尺寸结构温压战斗部,进行战斗部毁伤模拟相控阵雷达天线靶标试验,测试并分析火球温度、冲击波、靶标介质棒损坏比例等数据。试验结果表明:相同尺寸结构和装药量下,相对钢壳战斗部,活性壳体战斗部火球最高温度提高14.9%、500℃以上火球面积增加20%~50%,冲击波比冲量始终高于钢壳战斗部,对8 m处靶标的毁伤程度提升15.5%;温压战斗部可通过自然破片和冲击波毁伤靶标,冲击波能够造成介质棒大面积脱落,基于试验结果分析,对于54.8%以上阵面辐射单元毁伤,冲击波比冲量应达到142.5 Pa·s以上。

The power of a warhead composed of reactive shell and thermobaric explosive and its damage effects on phased-array radar antenna are studied to enhance the destructive effects and provide support for the design of relevant warheads.Two kinds of thermobaric warheads with reactive casing and 20 steel casing,which have the same size,are designed.Damage effect tests are conducted on a simulated phased-array radar antenna target.The fireball temperature,shock wave,and target dielectric rod damage ratio are test and analyzed.The following findings were observed through a comparative analysis:For warheads with the same size and explosive charge,the warhead with reactive casing exhibits a 14.90%increase in the maximum temperature and a 20%-50%increase in the area of fireball above 500℃,as compared to the warhead with steel casing.Additionally,the specific impulse of warhead with reactive casing is always higher than that of warhead with steel casing,resulting in a 15.5%increase in the level of damage to a target at a distance of 8 m.Thermobaric warheads can cause damage to a target through natural fragments and shock waves.The shock wave can induce a widespread disintegration of the dielectric rods.And the linear relationship between specific impulse and the damage degree of target is significant.Specific impulse can be used as a criterion parameter to judge the damage of phased array radar antenna.It can be seen from the test analysis that the specific impulse of shock wave should exceed 142.5 Pa·s in order to achieve damage to more than 54.8%of the arrayed units.