scholarly journals Wavelet and improved Hilbert–Huang transform method are used to study the spectrum distribution and energy of turbine pressure pulsation

2021 ◽  
Author(s):  
Chaofeng Lan ◽  
Bowen Song ◽  
Shuijing Li ◽  
Lei Zhang
Keyword(s):  
Pressure Pulsation ◽  
Transform Method ◽  
Hilbert Huang Transform ◽  
Spectrum Distribution

Research of Aircraft Cable Fault Detecting Method Based on Hilbert Huang Transformation

2011 ◽  
Vol 214 ◽  
pp. 138-143
Author(s):  
Tao Jing ◽  
Lu Zhang ◽  
Xu Dong Shi ◽  
Li Wen Wang
Keyword(s):  
Frequency Domain ◽  
Short Circuit ◽  
Reference Signal ◽  
Open Circuit ◽  
Time Domain Reflectometry ◽  
Transform Method ◽  
Hilbert Huang Transform ◽  
Intermittent Faults ◽  
Time Frequency ◽  
Frequency Domain Reflectometry

Aircraft cable fault diagnosing is considered to be most important for engineering maintenance. Several methods for cables testing have been developed, such as TDR, FDR and TFDR. Time Domain Reflectometry (TDR) relays much on impedance changes on the fault position, which is hard to using in detecting high resistance defects, intermittent defects; Time Frequency Domain Reflectometry (TFDR) method is used to locate intermittent faults, continuous faults and cross-connection faults aircraft wire, however, the algorithm of TFDR is complex. To the "Hard Fault"(short circuit and open circuit), the Hilbert-Huang Transform method is used in determining the optimal bandwidth of the incident reference signal and analyzing the phase and amplitude difference of superimposed signal which from the incident signal and the reflected signal on defects. To the "Fray Fault", Time and Frequency Domain Reflectometry method can be used with the signal processing method with Hilbert-Huang Transform. The experimental results indicate that this method effectively detect all types of aircraft cable fault, particularly for short lengths of cable.

Heterogeneity analysis of shale reservoirs from multi-stage pumping data using Hilbert-Huang transform method

2019 ◽  
Vol 12 (24) ◽  
Author(s):  
Wenbao Zhai ◽  
Jun Li ◽  
Zhaowei Chen ◽  
Gonghui Liu ◽  
Yingcao Zhou ◽  
...  
Keyword(s):  
Transform Method ◽  
Hilbert Huang Transform ◽  
Multi Stage ◽  
Heterogeneity Analysis ◽  
Shale Reservoirs

Nonlinearity of abnormal waves by the Hilbert–Huang Transform method

2016 ◽  
Vol 115 ◽  
pp. 30-38 ◽  
Author(s):  
Albena Veltcheva ◽  
C. Guedes Soares
Keyword(s):  
Transform Method ◽  
Hilbert Huang Transform

RETRACTED: Sensitivity of initial damage detection for steel structures using the Hilbert-Huang transform method

2012 ◽  
Vol 19 (6) ◽  
pp. 857-878 ◽  
Author(s):  
Wen-Ko Hsu ◽  
Dung-Jiang Chiou ◽  
Cheng-Wu Chen ◽  
Ming-Yi Liu ◽  
Wei-Ling Chiang ◽  
...  
Keyword(s):  
Damage Detection ◽  
Steel Structures ◽  
Transform Method ◽  
Hilbert Huang Transform ◽  
Initial Damage

A Hilbert–Huang transform method for scattering identification in LIGO

2017 ◽  
Vol 34 (23) ◽  
pp. 235009 ◽  
Author(s):  
Guillermo Valdes ◽  
Brian O’Reilly ◽  
Mario Diaz
Keyword(s):  
Transform Method ◽  
Hilbert Huang Transform

Effect of the Hilbert-Huang transform method on sleep staging

2017 ◽  
Author(s):  
Cuneyt Yucelbas ◽  
Sule Yucelbas ◽  
Seral Ozsen ◽  
Gulay Tezel ◽  
Sebnem Yosunkaya
Keyword(s):  
Sleep Staging ◽  
Transform Method ◽  
Hilbert Huang Transform
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