针对实际作战中飞机主要受敌方导弹破片的威胁,提出了一种导弹破片威胁下的飞机易损性分析模型.推导了破片的三维运动轨迹方程,采用有限单元法对飞机致命性部件进行描述,结合破片对致命性部件的杀伤准则和飞机杀伤树图建立了飞机易损性分析模型,最后进行了某飞机模型易损性分析仿真试验.仿真结果表明,所建立的模型计算结果符合实际,为导弹破片威胁下的飞机易损性分析提供了方法.%Since the aircrafts are mostly hit by fragments of missiles in actual combat, a vulnerability analysis model of aircraft to the fragments of a missile was proposed. The three-dimensional fragment trajectories formula was deduced out, and a finite element method for describing the components critical/lethal to the aircraft was proposed. Then the vulnerability analysis model was established based on the critical components killing rule and the damage tree of the aircraft. In the end, several numerical examples were given. Simulation results show that the analysis model is effective and feasible, which can provide important references for aircraft vulnerability analysis to the fragments of a missile.
展开▼
