Damage detection in plate structures using modal power flow analysis

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-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 languageEnglish
Title of host publication9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course
Pages150-154
Number of pages5
Volume1253
DOIs
Publication statusPublished - 20 Jul 2010
Event9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course - Ancona, Italy
Duration: 22 Jun 201025 Jun 2010

Conference

Conference9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course
CountryItaly
CityAncona
Period22/06/1025/06/10

Keywords

  • Damage detection
  • Modal analysis
  • Power flow

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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