进气道/发动机相容性试飞中总压畸变数据的采集与处理

研究了进气道/发动机相容性试飞中总压畸变数据的采集与处理方法,详细介绍了传感器选型、测点布局、受感部设计、测试及采集系统构建的要点,开发了通用动态数据处理软件,并重点研究了动态总压数据处理方法和参数选择问题。通过某型飞机/发动机的进气道/发动机相容性试飞应用及其数据处理表明:提出的测试与采集方案合理可行,工程应用情况良好;动态数据处理中应合理选择截止频率、滤波器阶次以及滤波函数。

Acquisition and Processing of Total Pressure Distortion Data in Inlet/Engine Compatibility Flight Test

The methods on acquisition and processing of total pressure distortion data in inlet/engine compatibility flight test were researched.The sensor selection,station distribution,the rake design,and data acquisition system construction were specified.General software for dynamic data processing was developed,data processing method and parameter selection were emphasized.Applying the methods to an inlet/engine compatibility flight test project,final results showed that the measuring and processing methods were reasonable and feasible,cut-off frequency and filter order and filtering function should be carefully selected in dynamic data processing.