A vibration-based damage identification technique free of structural baseline information: Experimental validation in multi-component plane structure

H. Xu, Zhongqing Su, Li Cheng, M. S. Cao

Research output: Journal article publicationConference articleAcademic researchpeer-review

Abstract

A vibration-based method for damage identification was established based on the "weak" formulation of Pseudo-excitation (PE) technique. The method can be effectively conducted without any prior knowledge of structural baseline parameters, e.g., Young's Modulus, and is capable of detecting multi-damage in both one- And two-dimensional structural components. Moreover, relying on point-wise examination of structural dynamic equilibrium conditions, the baseline parameters of inspected structure can be inversely estimated in a statistical way, showing promising potential in engineering practices. As a proof-of-concept investigation, multi-damage in a plane structure, containing both beam and plate components, were identified experimentally using the proposed method.
Original languageEnglish
Pages (from-to)334-338
Number of pages5
JournalVibroengineering Procedia
Volume5
Publication statusPublished - 1 Sep 2015
EventInternational Conference on Vibroengineering - 2015 - Nanjing, China
Duration: 26 Sep 201528 Sep 2015

Keywords

  • Baseline parameters
  • Damage identification
  • Dynamic equilibrium
  • Vibration

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • General
  • Control and Systems Engineering
  • Mechanical Engineering

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