【摘要】 为了提高飞机起落架控制系统的安全性能,提出了基于马尔科夫模型的起落架控制系统可靠性评估方法。首先分析系统每个节点的可靠性。运用马尔科夫过程对节点控制系统进行数学建模,根据故障空间状态图推导出系统的查普曼-柯尔莫戈洛方程,然后利用数学方法解出系统处于每一个状态的概率,得到节点控制系统的可靠度,进而求出整个起落架控制系统的可靠度。结果表明马尔科夫过程可以对起落架控制系统的可靠性进行准确的分析,结果精确,计算过程简单,对数学工具的要求低,适用于起落架这种复杂控制系统的可靠性研究。更多还原

【Abstract】 To improve safety performance of aircraft landing gear control system, this paper proposes a landing gear control system reliability assessment method based on Markov model. Firstly, it analyzes reliability for each node in the system. This paper establishes a mathematical model for one node control system by Markov process and deduces Chapman-Kolmoqorov equation. It can solve probability of each state in the system using mathematical method and get reliability for one node, And then the entire landing gear control system reliability is gotten. The result shows that Markov process can analyze accurately landing gear control system reliability, and result is accurate, calculation process is simple, demand for mathematical tools is low. It is suitable for research of complex landing gear control system reliability.更多还原