插板式畸变发生器出口动态压力信号的功率谱分析

Power Spectrum Analysis of Dynamic Pressure Signal by Inlet Flat Baffle

对两种不同型号发动机进气畸变试验所获得的数据进行了功率谱分析 ,通过功率谱图可得知发动机进口插板位置、转速等因素对进气畸变动态压力信号频率的影响 。

This paper analyzes the data gained from inlet distortion tests by power spectrum method on two different type of aeroengines. Effects of position of inlet flat baffle and aeroengine rotate speeds on frequency of dynamic pressure signal in inlet distortion test are obtained from power spectrum profile. This conclusion provides reference for future aeroengine stability test and in depth research.