the contact state monitoring for seal end faces based on acoustic emission detection

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ID: 140367
2016
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Abstract
Monitoring the contact state of seal end faces would help the early warning of the seal failure. In the acoustic emission (AE) detection for mechanical seal, the main difficulty is to reduce the background noise and to classify the dispersed features. To solve these problems and achieve higher detection rates, a new approach based on genetic particle filter with autoregression (AR-GPF) and hypersphere support vector machine (HSSVM) is presented. First, AR model is used to build the dynamic state space (DSS) of the AE signal, and GPF is used for signal filtering. Then, multiple features are extracted, and a classification model based on HSSVM is constructed for state recognition. In this approach, AR-GPF is an excellent time-domain method for noise reduction, and HSSVM has advantage on those dispersed features. Finally experimental data shows that the proposed method can effectively detect the contact state of the seal end faces and has higher accuracy rates than some other existing methods.
Reference Key
li2016shockthe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Xiaohui Li;Pan Fu;Kan Chen;Zhibin Lin;Erqing Zhang
Journal Nano letters
Year 2016
DOI
10.1155/2016/8726781
URL
http://dx.doi.org/10.1155/2016/8726781
Keywords
physics

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