摘要
摘要:短时傅里叶变换技术作为一种重要的分析工具,可用来分析某型发动机低压压气机气动失稳的时域和频域信号,从而能清晰地了解其气动失稳的发生和发展过程。所获得的这些结果将为改进该低压压气机的气动设计提供科学依据。
STFT(Short Time Fourier Transform), as an important analysis tool, is applied to time/frequency domain signal analysis during LP compressor unstable operating, so that emergence and development of the unstable operating are understood thoroughly. The results obtained will be used as scientific design basis to improve the aerodynamic unstability.
出处
《航空发动机》
2003年第2期8-10,共3页
Aeroengine
