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Health monitoring of structures using few frequency response measurements

Golafshani, A. A ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. Publisher: 2010
  3. Abstract:
  4. The development of damage detection techniques for offshore jacket structures is vital for preventing catastrophic events. This paper applies a frequency response based method for the purpose of structural health monitoring. In this approach, the concept of a minimum rank perturbation theory is used. The feasibility of using a finite number of sensors and its effect on damage detection capabilities is investigated. In addition, the performance of the proposed method is evaluated in the case of multiple damages. The aforementioned points are illustrated using the numerical study of a two dimensional jacket platform
  5. Keywords:
  6. Minimum rank perturbation theory ; Offshore jacket platform ; Damage detection technique ; Detection capability ; Finite number ; Frequency response function ; Frequency response measurement ; Health monitoring of structure ; Jacket platforms ; Minimum rank ; Multiple damages ; Numerical studies ; Offshore jacket structures ; Offshore jackets ; Response-based method ; Structural health ; Damage detection ; Drilling platforms ; Frequency response ; Health ; Monitoring ; Perturbation techniques ; Structural health monitoring ; Catastrophic event ; Damage ; Detection method ; Health monitoring ; Numerical model ; Offshore structure
  7. Source: Scientia Iranica ; Volume 17, Issue 6 A , NOVEMBER-DECEMBER , 2010 , Pages 493-500 ; 10263098 (ISSN)
  8. URL: http://en.journals.sid.ir/ViewPaper.aspx?ID=186570