Damage detection in plate structures using modal power flow analysis

X. Liu; Wai On Wong; Li Cheng

doi:10.1063/1.3455452

Damage detection in plate structures using modal power flow analysis

X. Liu, Wai On Wong, Li Cheng

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

The power flow and energy distribution of a vibration mode of a damaged plate is studied experimentally. Variation of the modal reactive power distribution of a damaged plate is experimentally evaluated with a scanning LDV and compared to the theoretical predictions. Large variation of local reactive power flow in or around the damage region of a plate under resonant vibration is found to be related to the change of strain and kinetic energies in the damage region. Feasibility of damage identification based on the detection of this local variation of modal reactive power flow in a structure is studied.

Original language	English
Title of host publication	9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course
Pages	150-154
Number of pages	5
Volume	1253
DOIs	https://doi.org/10.1063/1.3455452
Publication status	Published - 20 Jul 2010
Event	9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course - Ancona, Italy Duration: 22 Jun 2010 → 25 Jun 2010

Conference

Conference	9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course
Country/Territory	Italy
City	Ancona
Period	22/06/10 → 25/06/10

Keywords

Damage detection
Modal analysis
Power flow

ASJC Scopus subject areas

General Physics and Astronomy

More information

10.1063/1.3455452

Cite this

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title = "Damage detection in plate structures using modal power flow analysis",

abstract = "The power flow and energy distribution of a vibration mode of a damaged plate is studied experimentally. Variation of the modal reactive power distribution of a damaged plate is experimentally evaluated with a scanning LDV and compared to the theoretical predictions. Large variation of local reactive power flow in or around the damage region of a plate under resonant vibration is found to be related to the change of strain and kinetic energies in the damage region. Feasibility of damage identification based on the detection of this local variation of modal reactive power flow in a structure is studied.",

keywords = "Damage detection, Modal analysis, Power flow",

author = "X. Liu and Wong, {Wai On} and Li Cheng",

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Liu, X, Wong, WO & Cheng, L 2010, Damage detection in plate structures using modal power flow analysis. in 9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course. vol. 1253, pp. 150-154, 9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course, Ancona, Italy, 22/06/10. https://doi.org/10.1063/1.3455452

Damage detection in plate structures using modal power flow analysis. / Liu, X.; Wong, Wai On; Cheng, Li.
9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course. Vol. 1253 2010. p. 150-154.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AU - Cheng, Li

PY - 2010/7/20

Y1 - 2010/7/20

N2 - The power flow and energy distribution of a vibration mode of a damaged plate is studied experimentally. Variation of the modal reactive power distribution of a damaged plate is experimentally evaluated with a scanning LDV and compared to the theoretical predictions. Large variation of local reactive power flow in or around the damage region of a plate under resonant vibration is found to be related to the change of strain and kinetic energies in the damage region. Feasibility of damage identification based on the detection of this local variation of modal reactive power flow in a structure is studied.

AB - The power flow and energy distribution of a vibration mode of a damaged plate is studied experimentally. Variation of the modal reactive power distribution of a damaged plate is experimentally evaluated with a scanning LDV and compared to the theoretical predictions. Large variation of local reactive power flow in or around the damage region of a plate under resonant vibration is found to be related to the change of strain and kinetic energies in the damage region. Feasibility of damage identification based on the detection of this local variation of modal reactive power flow in a structure is studied.

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DO - 10.1063/1.3455452

M3 - Conference article published in proceeding or book

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SP - 150

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BT - 9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course

T2 - 9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course

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ER -

Damage detection in plate structures using modal power flow analysis

Abstract

Conference

Keywords

ASJC Scopus subject areas

More information

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