基于易损面积分解的飞机多击中易损性评估的马尔可夫链法  

Markov Chain Method for Aircraft Multiple Hit Vulnerability Assessment Based on Vulnerable Area Decomposition

作　　者：杨文青[1] 宋笔锋[1] 裴扬[1] 

机构地区：[1]西北工业大学航空学院,陕西西安710072

出　　处：《航空学报》2007年第2期319-323,共5页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(10372082)

摘　　要：提出了一种适用于计算具有多组余度部件、部件之间任意重叠的飞机多击中易损性评估的马尔可夫链法。考虑到实际中飞机部件重叠广泛存在的特点,以基于概率的易损面积分解法为基础,通过确定飞机存在状态和计算状态转换矩阵,得出了通用的评估飞机易损性的计算方法。并对该方法编制了通用的计算机程序,进行了算例验证,结果与理论分析符合。实用中表明,所提出的方法通用性强,易于实现,解决了部件之间存在重叠情况的飞机多击中易损性精确计算问题。The purpose of this paper is developing an improved Markov chain method for vulnerability assessment of an aircraft which has arbitrary overlapping among critical components and probably receives multiple hits in a campaign. Since actual aircraft always has arbitrary components overlapping, an improved Markov chain method for aircraft multiple hit vulnerability assessment is proposed based on the ＂aircraft vulnerable area decomposition method＂, and an universal algorithm is also offered for the solution of transition matrix, which contains two key parts, namely determining the matrix dimension and constructing the transition matrix. In the end, a numerical example is given. The result shows that the method is effective and feasible.

关 键 词：易损性 易损面积 部件重叠 多击中 马尔可夫链 

分 类 号：V221[航空宇航科学与技术—飞行器设计]