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飞行器突发故障是一种随机故障,常对飞行器的安全飞行造成严重威胁。为认识和揭示飞行器突发故障的演化规律,提出利用耗散结构理论对飞行器突发故障的演化机理、演化过程及演化特征进行分析和研究,根据时变熵和时变频带能量分布建立飞行器突发故障演化模型,并以飞机发动机喘振为例进行仿真验证。结果表明,耗散结构熵值的变化和时变频带能量的波动,能够反映飞行器突发故障的演化过程和演化特征。
A sudden failure of an aircraft is a random failure that often poses a serious threat to the safe flight of the aircraft. In order to understand and reveal the evolution law of the sudden failure of the aircraft, the evolution mechanism, evolutionary process and evolution characteristics of the sudden failure of the aircraft are analyzed and studied based on the dissipative structure theory. According to the time-varying entropy and the energy distribution of the time-varying frequency band, Fault evolution model, and the aircraft engine surge for simulation simulation. The results show that the variation of the entropy of the dissipative structure and the fluctuation of the energy in the time-varying frequency band can reflect the evolutionary process and evolution characteristics of the sudden failure of the aircraft.