Fault Diagnosis Method of Gearbox Based on Local Mean Decomposition

Jian Zhang; Hui Mei Li; Yan Feng Tang; Qin Qin Wang

doi:10.4028/www.scientific.net/AMM.376.441

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 376Fault Diagnosis Method of Gearbox Based on Local...

Fault Diagnosis Method of Gearbox Based on Local Mean Decomposition

Abstract:

Local mean decomposition(LMD),which is a new time-frequency method, can decompose a complex multicomponent modulation signal into a linear combination of a finite set of mono-component modulation signals. LMD integrates two signal processing procedures: decomposition and demodulation, and it can extract modulation feature efficiently. The basic theory and algorithm of LMD is introduced, and the effection of LMD is verified trough simulation. LMD is applied in gearbox fault diagnosis and successfully extracts modulation feature.

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Periodical:

Applied Mechanics and Materials (Volume 376)

Pages:

441-445

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.376.441

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Online since:

August 2013

Authors:

Jian Zhang, Hui Mei Li, Yan Feng Tang, Qin Qin Wang

Keywords:

Demodulation, Fault Diagnosis, Gearbox, Local Mean Decomposition (LMD)

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