噪声与振动控制2012，Vol.32Issue(2)：123-127,5.DOI:10.3969/j.issn.1006-1355-2012.02.030
航空发动机试飞中转静子碰摩故障信号处理的希尔伯特-黄变换(HHT)方法
Signal Processing of Rubbing Trouble Between Rotor and Stator of Aeroengines in Flight-test Using Hilbert-Huang Transform
摘要
Abstract
A new method of time-varying signal processing based on empirical mode decomposition (EMD) and Hilbert transformation (HT) was proposed. At first, the time series data was separated into components with different time scales, say, intrinsic mode functions (IMF) using EMD. Then the Hilbert transformation was applied to each IMFs. The result of the method was a spectrum of the HT. In the paper, this method and the corresponding algorithm were explained in detail, and the program written by MATLAB was verified by comparing its output with the result of a vibration signal simulation. Then, this method was applied to the vibration signal processing of rotor-stator rubbing trouble of the aeroengine in the real flight testing. The result shows that the EMD and HT-based time-frequency analysis method is valid in vibration signal processing of rotor-stator rubbing trouble of aeroengines.关键词
振动与波/航空发动机,碰摩故障,振动信号,希尔伯特-黄变换,经验模态分解Key words
vibration and wave / aeroengine / rubbing trouble / vibration signal/ Hilbert-Huang transform / empirical mode decomposition (EMD)分类
航空航天引用本文复制引用
符娆,张群岩,赵述元..航空发动机试飞中转静子碰摩故障信号处理的希尔伯特-黄变换(HHT)方法[J].噪声与振动控制,2012,32(2):123-127,5.
