Smart Structures and Systems

  • 제14권2호
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  • Pages.105-128
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  • 2014
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Stochastic DLV method for steel truss structures: simulation and experiment

  • An, Yonghui (Department of Civil Engineering, Dalian University of technology) ;
  • Ou, Jinping (Department of Civil Engineering, Dalian University of technology) ;
  • Li, Jian (Department of Civil, Environmental, and Architectural Engineering, University of Kansas) ;
  • Spencer, B.F. Jr. (Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign)
  • 투고 : 2012.02.01
  • 심사 : 2013.06.28
  • 발행 : 2014.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

The stochastic damage locating vector (SDLV) method has been studied extensively in recent years because of its potential to determine the location of damage in structures without the need for measuring the input excitation. The SDLV method has been shown to be a particularly useful tool for damage localization in steel truss bridges through numerical simulation and experimental validation. However, several issues still need clarification. For example, two methods have been suggested for determining the observation matrix C identified for the structural system; yet little guidance has been provided regarding the conditions under which the respective formulations should be used. Additionally, the specific layout of the sensors to achieve effective performance with the SDLV method and the associated relationship to the specific type of truss structure have yet to be explored. Moreover, how the location of truss members influences the damage localization results should be studied. In this paper, these three issues are first investigated through numerical simulation and subsequently the main results are validated experimentally. The results of this paper provide guidance on the effective use of the SDLV method.

키워드

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