Abstract：A new method of High Speed Train rollerAE signal extraction was presented here.BecauseEMD acts as a dyadic filter bank, in this method,amplitude of the added noise in accordance with a Linear - Sinusoidal spectrum, and expound how to assemble the noise. The sifting numberwas set by frequency from high to low.Then,calculate IMF’s Segment sample entropy along the timeline, which take a larger proportionwas identified as an AE events. The experimental result shows that the Linear - Sinusoidal noise spectrum and sifting number couldrestrain the mode mixing and the little wave vanish.The modified EEMDobtains a tangible physical meaning and improved results compared with the original EEMD.Segment sample entropy could captured the AE events in a continuous monitoring data. The AE signal was intuitive reflect in the correspondingHilbertspectrogram. TherollerAE signal are consistent with the theoretical calculation.
邓韬，林建辉，黄晨光，靳行，张敏. 基于改进EEMD样本熵的高速列车滚子缺陷AE信号提取[J]. 振动与冲击, 2017, 36(16): 148-154.
DENGTao, LINJianhui,HUANGChenguang,JINHang,ZHANG Min. AE signal extraction ofHigh SpeedTrainroller based on modified EEMD and Segment sample entropy. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(16): 148-154.
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