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进气道与发动机匹配是飞机研制中的一个重要问题。二十年来曾为此研究了许多种方法,通常的方法是测量时变压力畸变数据並找出进气动态畸变的峰值,然后再将此峰值与发动机的不稳定性关联起来。但是测量时变进气压力畸变数据,要求大量的高响应压力仪器和时间相关的数据采集系统,以及昂贵的数据处理费用,因此,研究了不少基于功态压力数据的统计特性的方法来减少成本费用。本文简单地叙述了这些决定进气功态畸变峰值的方法,并指出它们的优缺点。最后,讨论了今后可能的发展动向。
Matching the air intake with the engine is an important issue in aircraft development. Many methods have been studied for two decades for this purpose. The usual method is to measure the time-varying pressure distortion data and find the peak value of the dynamic intake air distortion, which is then correlated with the engine instability. However, the measurement of pressured air pressure data changes, requiring a large number of high response pressure instruments and time-related data acquisition systems, as well as expensive data processing costs, therefore, a lot of research based on the statistical characteristics of the power of stress data to reduce Cost. This article briefly describes these methods of determining the peak intake power distortion and points out their advantages and disadvantages. Finally, we discuss possible future developments.