航空發(fā)動機的無序度在整個演化過程是在不斷變化的。本文引入了信息熵理論，用多元聯(lián)合熵來刻畫航空發(fā)動機的有序性和演化方向。實際數(shù)據(jù)分析表明：用多元聯(lián)合熵描述的航空發(fā)動機的性能演變趨勢與實際情況吻合。本文的研究為航空發(fā)動機及其它復(fù)雜機械系統(tǒng)的性能監(jiān)控提出了一種新的普適性方法。
關(guān)鍵詞：航空發(fā)動機，熵理論，多元聯(lián)合熵，性能監(jiān)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