Critical Ultimate Load and Ultimate Bearing Failure of CT110 with Initial Crack Defect

Shaohu, Liu; Yuandeng, Wu; Zhou, Hao

doi:10.1007/s11668-020-01047-w

Cited by 4 publications

(1 citation statement)

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“…However, MEMD adds a masking signal to the signal processing, and the selection and the processing of the masking signal are uncertain. In the signal processing process, the added signal cannot be fully integrated, which leads to the performance defects of MEMD [3].…”

Section: Introductionmentioning

confidence: 99%

Recognition of Crack-Rubbing Coupling Fault of Bearing under High Water Pressure Based on Polar Symmetry Mode Decomposition

Huang

Hua

Xie³

et al. 2020

Symmetry

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The precision of current research on fault recognition of marine bearing remains to be improved. Therefore, a recognition method of crack-rubbing coupling fault of bearing under high water pressure based on polar symmetry mode decomposition is proposed in this article. The structure of marine bearing was analyzed, and the system was divided into several subsystems. Then, the nonlinearity relationship among the subsystems was confirmed. One subsystem was used to represent other subsystems, which was imported into the kinetic equation to obtain the equation after dimensionality reduction. According to the results of dimensionality reduction, the features of signal were measured from time domain, energy, and entropy. Meanwhile, the interior features of signal were extracted. Based on the feature extraction, the classifier of probabilistic neural network was introduced. The signal was recognized, and the recognition results were output via the training of signal sample data. Experimental results show that the method has better dimensionality reduction effect and high recognition precision. The method is practical.

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Section: Introductionmentioning

confidence: 99%