摘要
发动机试验动态数据通常包含关键部位振动、脉动压力等重要信息,是评判发动机性能、零部件特性和优化设计的重要参考指标。总结了快速傅里叶变换、小波分析、小波包分析、Hilbert-Huang变换等几种适用于动态数据处理方法的优缺点,分别介绍了上述几种方法以及多种方法相结合后在动态数据分析和处理方面的应用。
Engine test dynamic data usually contains important information such as vibration and pulsating pressure of key parts,which is an important reference index for evaluating engine performance,component characteristics and optimal design.The advantages and disadvantages of several methods suitable for dynamic data processing are summarized,such as fast Fourier transform,wavelet analysis,wavelet packet analysis,Hilbert-Huang transform,and the application of these methods and their combination in dynamic data analysis and processing are introduced.
作者
刘子星
高俊
宋炯亮
林萌
杨懿
LIU Zi-xing;Gao Jun;SONG Jiong-iang;LIN Meng;YANG Yi(Beijing Power Machinery Institute,Beijing 100074,China;Beijing Institute of Aerospace Testing Technology,Beijing 100074,China)
出处
《宇航计测技术》
CSCD
2023年第4期66-74,共9页
Journal of Astronautic Metrology and Measurement
作者简介
刘子星(1985-),男,高级工程师,本科,主要研究方向:航空发动机控制技术。
