The AE Signals Bi-Spectrum Features Study in Batch Drilling

You Hang Zhou; Sai Yuan Xie; Hou Ming Zhou

doi:10.4028/www.scientific.net/MSF.800-801.745

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HomeMaterials Science ForumMaterials Science Forum Vols. 800-801The AE Signals Bi-Spectrum Features Study in Batch...

The AE Signals Bi-Spectrum Features Study in Batch Drilling

Abstract:

Based on the coupling phenomena between the batch drilling process quality fluctuation and monitoring signal features changes, the acoustic emission signals of batch drilling are taken as research objects to solve the quality consistency control and detection problem of the high-precision batch drilling step. The average bi-spectrum amplitude of each signal is taken as an eigenvalue for the quantitative analysis of the deviation degree from Gaussian distribution under different conditions. The calculation and analysis results show that there are organic connections between the bi-spectrum feature of monitoring signals and drilling step quality, and the consistency quality testing of batch drilling step is realized by bi-spectrum features.

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Periodical:

Materials Science Forum (Volumes 800-801)

Pages:

745-748

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.800-801.745

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Online since:

July 2014

Authors:

You Hang Zhou*, Sai Yuan Xie, Hou Ming Zhou

Keywords:

AE Signal, Batch Drilling Step Quality, Bi-Spectrum, Gaussian Distribution

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* - Corresponding Author

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