Magnetic fluid sealing status estimation based on acoustic emission monitoring

The aim of the study was to analyze acoustic emission (AE) signals generated in different magnetic fluid sealing processes to estimate the status of the seal. Based on a magnetic fluid rotary sealing experimental setup, the AE sensor is respectively attached to the shell at the corresponding positio...

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Main Authors: Nuo Chen, Decai Li, Jinyu Xue, Yuan Yin, Yanwen Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-08-01
Series:Frontiers in Materials
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmats.2022.957446/full
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author Nuo Chen
Decai Li
Jinyu Xue
Yuan Yin
Yanwen Li
author_facet Nuo Chen
Decai Li
Jinyu Xue
Yuan Yin
Yanwen Li
author_sort Nuo Chen
collection DOAJ
description The aim of the study was to analyze acoustic emission (AE) signals generated in different magnetic fluid sealing processes to estimate the status of the seal. Based on a magnetic fluid rotary sealing experimental setup, the AE sensor is respectively attached to the shell at the corresponding position of the seal, and the external pressure is applied to the magnetic fluid seal by a gas supply system. As the pressure gradually increases, the magnetic fluid sealing rings under different pole teeth are gradually broken, and processes such as pressure transfer between the seal stages occur. These processes generate different AE signals, which are collected by the sensors. The results show that the root-mean-square values of AE signals generated at the moment of sealing failure are different from those generated before and after. At the same time, by analyzing the characteristic values of AE signals generated in the whole process, we can infer the time when the rupture begins under different pole pieces and further estimate the status of the magnetic fluid seal. For the first time, this research demonstrates the experimental and data analysis procedures of AE technology for magnetic fluid seals.
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spelling doaj.art-e1fdc9b82dda4961a545e2fa5b16fd312022-12-22T03:41:32ZengFrontiers Media S.A.Frontiers in Materials2296-80162022-08-01910.3389/fmats.2022.957446957446Magnetic fluid sealing status estimation based on acoustic emission monitoringNuo Chen0Decai Li1Jinyu Xue2Yuan Yin3Yanwen Li4State Key Laboratory of Tribology, Tsinghua University, Beijing, ChinaState Key Laboratory of Tribology, Tsinghua University, Beijing, ChinaSchool of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, ChinaState Key Laboratory of Tribology, Tsinghua University, Beijing, ChinaState Key Laboratory of Tribology, Tsinghua University, Beijing, ChinaThe aim of the study was to analyze acoustic emission (AE) signals generated in different magnetic fluid sealing processes to estimate the status of the seal. Based on a magnetic fluid rotary sealing experimental setup, the AE sensor is respectively attached to the shell at the corresponding position of the seal, and the external pressure is applied to the magnetic fluid seal by a gas supply system. As the pressure gradually increases, the magnetic fluid sealing rings under different pole teeth are gradually broken, and processes such as pressure transfer between the seal stages occur. These processes generate different AE signals, which are collected by the sensors. The results show that the root-mean-square values of AE signals generated at the moment of sealing failure are different from those generated before and after. At the same time, by analyzing the characteristic values of AE signals generated in the whole process, we can infer the time when the rupture begins under different pole pieces and further estimate the status of the magnetic fluid seal. For the first time, this research demonstrates the experimental and data analysis procedures of AE technology for magnetic fluid seals.https://www.frontiersin.org/articles/10.3389/fmats.2022.957446/fullmagnetic fluidsealacoustic emissionsealing failurepressure transfer
spellingShingle Nuo Chen
Decai Li
Jinyu Xue
Yuan Yin
Yanwen Li
Magnetic fluid sealing status estimation based on acoustic emission monitoring
Frontiers in Materials
magnetic fluid
seal
acoustic emission
sealing failure
pressure transfer
title Magnetic fluid sealing status estimation based on acoustic emission monitoring
title_full Magnetic fluid sealing status estimation based on acoustic emission monitoring
title_fullStr Magnetic fluid sealing status estimation based on acoustic emission monitoring
title_full_unstemmed Magnetic fluid sealing status estimation based on acoustic emission monitoring
title_short Magnetic fluid sealing status estimation based on acoustic emission monitoring
title_sort magnetic fluid sealing status estimation based on acoustic emission monitoring
topic magnetic fluid
seal
acoustic emission
sealing failure
pressure transfer
url https://www.frontiersin.org/articles/10.3389/fmats.2022.957446/full
work_keys_str_mv AT nuochen magneticfluidsealingstatusestimationbasedonacousticemissionmonitoring
AT decaili magneticfluidsealingstatusestimationbasedonacousticemissionmonitoring
AT jinyuxue magneticfluidsealingstatusestimationbasedonacousticemissionmonitoring
AT yuanyin magneticfluidsealingstatusestimationbasedonacousticemissionmonitoring
AT yanwenli magneticfluidsealingstatusestimationbasedonacousticemissionmonitoring