基于多元联合熵的航空发动机性能分析

航空发动机的无序度在整个演化过程是在不断变化的。本文引入了信息熵理论，用多元联合熵来刻画航空发动机的有序性和演化方向。实际数据分析表明：用多元联合熵描述的航空发动机的性能演变趋势与实际情况吻合。本文的研究为航空发动机及其它复杂机械系统的性能监控提出了一种新的普适性方法。
关键词：航空发动机，熵理论，多元联合熵，性能监控
Performance Analysis of Aero-engine Based on Multi-Joint Entropy Li Juntao , Zhang Fengming, Li Yongbing （Engineering Institute, Air Force Engineering University, Xi’an 710038, China） Abstract: Aero-engine’s disorder parameter varies during its Evolution. Information entropy theory was introduced into this paper, and multi-joint entropy was used to depict the aero-engine’s disorder parameter and evolutive trend. Real data analysis showed that result was basically in accord with actual situation. A new general approach for aero-engine and other complex mechanical system performance monitoring was put forward.
Keywords：Aero-engine, Entropy Theory, Multi-Joint Entropy, Performance Monitoring