Monitor On-Line and Fault Diagnosis to High Speed Centrifugal Hydrogen Compressors Based on the Theories of EMD and Correlation Dimension

H.I. Liu; X.P. Li; Y.N. Rui

doi:10.4028/www.scientific.net/AMM.33.523

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 33Monitor On-Line and Fault Diagnosis to High Speed...

Monitor On-Line and Fault Diagnosis to High Speed Centrifugal Hydrogen Compressors Based on the Theories of EMD and Correlation Dimension

Abstract:

High Speed Centrifugal Hydrogen Compressors are big and critical equipments which are widely used in chemical enterprises. It is very important to monitor their condition on-line and diagnose their failure. Based on the research of EMD (empirical mode decomposition) and correlation dimension and experimental simulation, the vibration signals of a High Speed Centrifugal Hydrogen Compressor’s main spindle are collected when working. Then the signals are decomposed by EMD, their correlation dimensions are calculated and taken as fault feature. Finally, using BP algorithm of a neural network in which there are 3 lays, a satisfied effect of fault diagnosis of a High Speed Centrifugal Hydrogen Compressor has been got. The experiment has confirmed that the method is advanced, reliable and practical. A new method is provided for High Speed Centrifugal Hydrogen Compressors’ fault diagnosis.

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Periodical:

Applied Mechanics and Materials (Volume 33)

Pages:

523-527

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.33.523

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Online since:

October 2010

Authors:

H.I. Liu, X.P. Li, Y.N. Rui

Keywords:

Correlation Dimension, Empirical Mode Decomposition (EMD), Fault Diagnosis

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