部件重叠和二次杀伤条件下飞机多击中易损性评估方法

Assessment of Aircraft Multiple-Hit Vulnerability Under Components Overlapping and Quadratic Effect

针对实际作战中飞机部件重叠和二次杀伤效应广泛存在的特点,提出了部件重叠和二次杀伤条件下的飞机多击中易损性评估方法.根据非余度部件和余度部件的性质,提出了非余度部件和余度部件在非重叠区域和重叠的二次杀伤效应计算方法,基于该方法计算飞机的广义致命性部件以及独立存在状态,利用马尔可夫链法建立飞机的多击中易损性评估模型,利用建立的模型对某飞机模型进行易损性评估仿真实验.仿真实验结果表明,二次杀伤使飞机易损性增大,增大的范围与致命性部件的二次杀伤概率、暴露面积、余度特性及重叠特性有关.

Since aircraft critical components overlapping and quadratic effect is common in actual battle, a method of aircraft multiple-hit vulnerability assessment under components overlapping and quadratic effect is proposed in this research. First, based on the properties of non-redundant and redundant components, quadratic effect calculation method of non-redundant and redundant components in non-components overlapping and the generalized critical components and existing components overlapping area was presented and states of the aircraft were deduced. Then, the assessment model of aircraft multiple-hit vulnerability was established using Markov-chain approach. Finally, several numerical examples were given. Simulation results show that quadratic effect would increase the aircraft vulnerability. The degree of damaging effect is related to the kill probability of quadratic effect, presented area and the features of redundant and overlapping of the critical components.