Damage Identification Method Based on LMD Sample Entropy and SVM for Oil Derrick

Long Qing Zou; Gui Juan Chen; Xing Jiang Gao; Chu Hao Jiang

doi:10.4028/www.scientific.net/AMM.701-702.620

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 701-702Damage Identification Method Based on LMD Sample...

Damage Identification Method Based on LMD Sample Entropy and SVM for Oil Derrick

Abstract:

To identify damaged position of oil derrick, this paper presents a damage identification method for oil derrick using LMD and sample entropy to extract eigenvector and SVM to identify classes. Hammering vibration response signal of damaged derrick is decomposed into several PF components. The sample entropy of PF components is calculated and used as eigenvectors. SVM classifier is constructed based on eigenvectors of different damage location, and this method can identify damage position accurately. This method is verified by comparison with recognition result of LMD and information entropy.

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Periodical:

Applied Mechanics and Materials (Volumes 701-702)

Pages:

620-623

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.701-702.620

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Online since:

December 2014

Authors:

Long Qing Zou, Gui Juan Chen*, Xing Jiang Gao, Chu Hao Jiang

Keywords:

Damage Identification, LMD, Oil Derrick, Sample Entropy, SVM

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* - Corresponding Author

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