Chapter
Apr 26, 2012
The Research on the Failure Mode Classification Based on Reconstructed Phase Space and GMM
Authors: Han Xiao [email protected], Yourong Li [email protected], and Lv Yong [email protected]Author Affiliations
Publication: Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract
The fault signals of equipments are nonlinear and non-stationary and these characteristics are more significant with the fault level increasing. In response to this feature of condition signals, the means of phase space reconstruction is put forward to display signals' dynamics characteristic of different failure modes. And each mode's Gaussian mixture model of reconstructed phase space is built, and then the equipments' failures are classified by Bayes classifier. An actual measurement of gearbox vibration signal is used for validation. The experiments results show that the gear's fault modes can be identified exactly when the mixture model number is appropriate and the noise disturbance can be overcome by proposed algorithm. Compared with BP and Elman neural network classifiers, the proposed method is proved higher reorganization rate.
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© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Mechanical Engineering School, Wuhan University of Science and Technology, P.O. Box 222, Wuhan, Hubei Province. E-mail: [email protected]
Mechanical Engineering School, Wuhan University of Science and Technology, P.O. Box 222, Wuhan, Hubei Province. E-mail: [email protected]
Mechanical Engineering School, Wuhan University of Science and Technology, P.O. Box 222, Wuhan, Hubei Province. E-mail: [email protected]
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