基于涡轮风扇发动机控制系统的安全性分析评价

阐述了对涡轮风扇发动机控制系统分析评价的必要性,分别对故障树和马尔科夫分析评价法进行了介绍和综合对比,提出一种基于模糊马尔科夫模型的动态故障树分析评价方法:将故障树里的动态逻辑转换为马尔科夫模型,来解决动态逻辑门的求解问题,实例证明此方法能有效解决具有动态失效特征的复杂系统的建模问题.

Safety analysis and evaluation of a turbofan engine control system

Firstly, the necessity of comprehensive evaluation of the turbofan engine control system is described, and then the fault tree analysis and Markov method are discussed and compared. Finally, a dynamic fault tree analysis method based on the fuzzy Markov model is proposed. The dynamic logic in the fault tree is converted into the Markov model to solve the problem of the dynamic logic gate. The exemplary study shows that this method can effectively solve the modeling problem of the complex system with dynamic failure characteristics.