计算机工程 ›› 2012, Vol. 38 ›› Issue (21): 14-16,21.doi: 10.3969/j.issn.1000-3428.2012.21.004

• 专栏 • 上一篇    下一篇

飞行器突发故障演化模型设计与仿真

韩治中,王仲生,姜洪开   

  1. (西北工业大学航空学院,西安 710072)
  • 收稿日期:2011-12-19 出版日期:2012-11-05 发布日期:2012-11-02
  • 作者简介:韩治中(1987-),男,硕士研究生,主研方向:故障诊断,数字信号处理;王仲生,教授、博士生导师;姜洪开,副教授
  • 基金项目:

    国家自然科学基金资助项目“飞行器突发故障演化规律及其防护方法研究”(51075330, 50975231)

Design and Simulation of Sudden Failure Evolution Model on Aircraft

HAN Zhi-zhong, WANG Zhong-sheng, JIANG Hong-kai   

  1. (School of Aeronautics, Northwest Polytechnic University, Xi’an 710072, China)
  • Received:2011-12-19 Online:2012-11-05 Published:2012-11-02

摘要:

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。

关键词: 飞行器, 突发故障, 演化模型, 熵, 耗散结构

Abstract:

The aircraft sudden failure is a kind of random faults, which is a serious threat for the safe. To present the law of the aircraft sudden failure, this paper proposes to analyze and disclose the mechanism, the feature and procedure of the aircraft sudden failure evolution by dissipative structure theory. Based on that, it models the sudden failure evolution model on aircraft via time varying entropy and time varying frequency band energy distribution, and then it simulates the model by the surge of aero-engine. The results suggest that the entropy and the frequency band energy distribution of the dissipative structure are useful to present the procedure and the feature of the aircraft sudden failure evolution.

Key words: aircraft, sudden failure, evolution model, entropy, dissipative structure

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