Near-field beamforming analysis for acoustic emission source localization

Tian He; Qiang Pan; Yaoguang Liu; Xiandong Liu; Dayong Hu

doi:10.1016/j.ultras.2011.12.003

Near-field beamforming analysis for acoustic emission source localization

Tian He, Qiang Pan, Yaoguang Liu, Xiandong Liu, Dayong Hu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

93 Citations (Scopus)

Abstract

This paper attempts to introduce a near-field acoustic emission (AE) beamforming method to estimate the AE source locations by using a small array of sensors closely placed in a local region. The propagation characteristics of AE signals are investigated based on guided wave theory to discuss the feasibility of using beamforming techniques in AE signal processing. To validate the effectiveness of the AE beamforming method, a series of pencil lead break tests at various regions of a thin steel plate are conducted. The potential of this method for engineering applications are explored through rotor-stator rubbing tests. The experimental results demonstrate that the proposed method can effectively determine the region where rubbing occurs. It is expected that the work of this paper may provide a helpful analysis tool for near-field AE source localization. © 2011 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	587-592
Journal	Ultrasonics
Volume	52
Issue number	5
DOIs	https://doi.org/10.1016/j.ultras.2011.12.003
Publication status	Published - Jul 2012
Externally published	Yes

Research Keywords

Acoustic emission
Beamforming
Guided wave
Rub
Source localization

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10.1016/j.ultras.2011.12.003

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title = "Near-field beamforming analysis for acoustic emission source localization",

abstract = "This paper attempts to introduce a near-field acoustic emission (AE) beamforming method to estimate the AE source locations by using a small array of sensors closely placed in a local region. The propagation characteristics of AE signals are investigated based on guided wave theory to discuss the feasibility of using beamforming techniques in AE signal processing. To validate the effectiveness of the AE beamforming method, a series of pencil lead break tests at various regions of a thin steel plate are conducted. The potential of this method for engineering applications are explored through rotor-stator rubbing tests. The experimental results demonstrate that the proposed method can effectively determine the region where rubbing occurs. It is expected that the work of this paper may provide a helpful analysis tool for near-field AE source localization. {\textcopyright} 2011 Elsevier B.V. All rights reserved.",

keywords = "Acoustic emission, Beamforming, Guided wave, Rub, Source localization",

author = "Tian He and Qiang Pan and Yaoguang Liu and Xiandong Liu and Dayong Hu",

year = "2012",

month = jul,

doi = "10.1016/j.ultras.2011.12.003",

language = "English",

volume = "52",

pages = "587--592",

journal = "Ultrasonics",

issn = "0041-624X",

publisher = "Elsevier B.V.",

number = "5",

}

TY - JOUR

T1 - Near-field beamforming analysis for acoustic emission source localization

AU - He, Tian

AU - Pan, Qiang

AU - Liu, Yaoguang

AU - Liu, Xiandong

AU - Hu, Dayong

PY - 2012/7

Y1 - 2012/7

N2 - This paper attempts to introduce a near-field acoustic emission (AE) beamforming method to estimate the AE source locations by using a small array of sensors closely placed in a local region. The propagation characteristics of AE signals are investigated based on guided wave theory to discuss the feasibility of using beamforming techniques in AE signal processing. To validate the effectiveness of the AE beamforming method, a series of pencil lead break tests at various regions of a thin steel plate are conducted. The potential of this method for engineering applications are explored through rotor-stator rubbing tests. The experimental results demonstrate that the proposed method can effectively determine the region where rubbing occurs. It is expected that the work of this paper may provide a helpful analysis tool for near-field AE source localization. © 2011 Elsevier B.V. All rights reserved.

AB - This paper attempts to introduce a near-field acoustic emission (AE) beamforming method to estimate the AE source locations by using a small array of sensors closely placed in a local region. The propagation characteristics of AE signals are investigated based on guided wave theory to discuss the feasibility of using beamforming techniques in AE signal processing. To validate the effectiveness of the AE beamforming method, a series of pencil lead break tests at various regions of a thin steel plate are conducted. The potential of this method for engineering applications are explored through rotor-stator rubbing tests. The experimental results demonstrate that the proposed method can effectively determine the region where rubbing occurs. It is expected that the work of this paper may provide a helpful analysis tool for near-field AE source localization. © 2011 Elsevier B.V. All rights reserved.

KW - Acoustic emission

KW - Beamforming

KW - Guided wave

KW - Rub

KW - Source localization

UR - http://www.scopus.com/inward/record.url?scp=84858451388&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84858451388&origin=recordpage

U2 - 10.1016/j.ultras.2011.12.003

DO - 10.1016/j.ultras.2011.12.003

M3 - RGC 21 - Publication in refereed journal

SN - 0041-624X

VL - 52

SP - 587

EP - 592

JO - Ultrasonics

JF - Ultrasonics

IS - 5

ER -

Near-field beamforming analysis for acoustic emission source localization

Abstract

Research Keywords

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