Locating point of impact on an anisotropic cylindrical surface using acoustic beamforming technique

Hayato Nakatani, Talieh Hajzargarbashi, Kaita Ito, Tribikram Kundu, Nobuo Takeda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

A beamforming array technique with four sensors is applied to a cylindrical geometry for detecting point of impact. A linear array of acoustic sensors attached to the plate record the waveforms of Lamb waves generated at the impact point with individual time delay. A beamforming technique in conjunction with an optimization scheme that incorporates the direction dependent guided Lamb wave speed in cylindrical plates is developed. The optimization is carried out using the experimentally obtained wave speed as a function of propagation direction. The maximum value in the beamforming plot corresponds to the predicted point of impact. The proposed technique is experimentally verified by comparing the predicted points with the exact points of impact on a cylindrical aluminum plate and a cylindrical composite shell. For randomly chosen points of impact the beamforming technique successfully predicts the location of the acoustic source.

Original languageEnglish (US)
Title of host publicationKey Engineering Materials
Pages331-340
Number of pages10
Volume558
DOIs
StatePublished - 2013
Event4th Asia-Pacific Workshop on Structural Health Monitoring - Melbourne, VIC, Australia
Duration: Dec 5 2012Dec 7 2012

Publication series

NameKey Engineering Materials
Volume558
ISSN (Print)10139826

Other

Other4th Asia-Pacific Workshop on Structural Health Monitoring
CountryAustralia
CityMelbourne, VIC
Period12/5/1212/7/12

Fingerprint

Beamforming
Acoustics
Surface waves
Guided electromagnetic wave propagation
Sensors
Aluminum
Time delay
Geometry
Composite materials
Direction compound

Keywords

  • Beamforming
  • Composite
  • Cylindrical surface
  • Guided wave
  • Impact
  • Optimization

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Nakatani, H., Hajzargarbashi, T., Ito, K., Kundu, T., & Takeda, N. (2013). Locating point of impact on an anisotropic cylindrical surface using acoustic beamforming technique. In Key Engineering Materials (Vol. 558, pp. 331-340). (Key Engineering Materials; Vol. 558). https://doi.org/10.4028/www.scientific.net/KEM.558.331

Locating point of impact on an anisotropic cylindrical surface using acoustic beamforming technique. / Nakatani, Hayato; Hajzargarbashi, Talieh; Ito, Kaita; Kundu, Tribikram; Takeda, Nobuo.

Key Engineering Materials. Vol. 558 2013. p. 331-340 (Key Engineering Materials; Vol. 558).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nakatani, H, Hajzargarbashi, T, Ito, K, Kundu, T & Takeda, N 2013, Locating point of impact on an anisotropic cylindrical surface using acoustic beamforming technique. in Key Engineering Materials. vol. 558, Key Engineering Materials, vol. 558, pp. 331-340, 4th Asia-Pacific Workshop on Structural Health Monitoring, Melbourne, VIC, Australia, 12/5/12. https://doi.org/10.4028/www.scientific.net/KEM.558.331
Nakatani H, Hajzargarbashi T, Ito K, Kundu T, Takeda N. Locating point of impact on an anisotropic cylindrical surface using acoustic beamforming technique. In Key Engineering Materials. Vol. 558. 2013. p. 331-340. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.558.331
Nakatani, Hayato ; Hajzargarbashi, Talieh ; Ito, Kaita ; Kundu, Tribikram ; Takeda, Nobuo. / Locating point of impact on an anisotropic cylindrical surface using acoustic beamforming technique. Key Engineering Materials. Vol. 558 2013. pp. 331-340 (Key Engineering Materials).
@inproceedings{25ed6e16807b43ecb8a149fa5f4ff570,
title = "Locating point of impact on an anisotropic cylindrical surface using acoustic beamforming technique",
abstract = "A beamforming array technique with four sensors is applied to a cylindrical geometry for detecting point of impact. A linear array of acoustic sensors attached to the plate record the waveforms of Lamb waves generated at the impact point with individual time delay. A beamforming technique in conjunction with an optimization scheme that incorporates the direction dependent guided Lamb wave speed in cylindrical plates is developed. The optimization is carried out using the experimentally obtained wave speed as a function of propagation direction. The maximum value in the beamforming plot corresponds to the predicted point of impact. The proposed technique is experimentally verified by comparing the predicted points with the exact points of impact on a cylindrical aluminum plate and a cylindrical composite shell. For randomly chosen points of impact the beamforming technique successfully predicts the location of the acoustic source.",
keywords = "Beamforming, Composite, Cylindrical surface, Guided wave, Impact, Optimization",
author = "Hayato Nakatani and Talieh Hajzargarbashi and Kaita Ito and Tribikram Kundu and Nobuo Takeda",
year = "2013",
doi = "10.4028/www.scientific.net/KEM.558.331",
language = "English (US)",
isbn = "9783037857151",
volume = "558",
series = "Key Engineering Materials",
pages = "331--340",
booktitle = "Key Engineering Materials",

}

TY - GEN

T1 - Locating point of impact on an anisotropic cylindrical surface using acoustic beamforming technique

AU - Nakatani, Hayato

AU - Hajzargarbashi, Talieh

AU - Ito, Kaita

AU - Kundu, Tribikram

AU - Takeda, Nobuo

PY - 2013

Y1 - 2013

N2 - A beamforming array technique with four sensors is applied to a cylindrical geometry for detecting point of impact. A linear array of acoustic sensors attached to the plate record the waveforms of Lamb waves generated at the impact point with individual time delay. A beamforming technique in conjunction with an optimization scheme that incorporates the direction dependent guided Lamb wave speed in cylindrical plates is developed. The optimization is carried out using the experimentally obtained wave speed as a function of propagation direction. The maximum value in the beamforming plot corresponds to the predicted point of impact. The proposed technique is experimentally verified by comparing the predicted points with the exact points of impact on a cylindrical aluminum plate and a cylindrical composite shell. For randomly chosen points of impact the beamforming technique successfully predicts the location of the acoustic source.

AB - A beamforming array technique with four sensors is applied to a cylindrical geometry for detecting point of impact. A linear array of acoustic sensors attached to the plate record the waveforms of Lamb waves generated at the impact point with individual time delay. A beamforming technique in conjunction with an optimization scheme that incorporates the direction dependent guided Lamb wave speed in cylindrical plates is developed. The optimization is carried out using the experimentally obtained wave speed as a function of propagation direction. The maximum value in the beamforming plot corresponds to the predicted point of impact. The proposed technique is experimentally verified by comparing the predicted points with the exact points of impact on a cylindrical aluminum plate and a cylindrical composite shell. For randomly chosen points of impact the beamforming technique successfully predicts the location of the acoustic source.

KW - Beamforming

KW - Composite

KW - Cylindrical surface

KW - Guided wave

KW - Impact

KW - Optimization

UR - http://www.scopus.com/inward/record.url?scp=84880447725&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880447725&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/KEM.558.331

DO - 10.4028/www.scientific.net/KEM.558.331

M3 - Conference contribution

AN - SCOPUS:84880447725

SN - 9783037857151

VL - 558

T3 - Key Engineering Materials

SP - 331

EP - 340

BT - Key Engineering Materials

ER -