Structural Engineering and Mechanics

  • 제60권4호
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  • Pages.729-747
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  • 2016
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Structural damage identification using gravitational search algorithm

  • Liu, J.K. (Department of Applied Mechanics, Sun Yat-sen University) ;
  • Wei, Z.T. (Department of Applied Mechanics, Sun Yat-sen University) ;
  • Lu, Z.R. (Department of Applied Mechanics, Sun Yat-sen University) ;
  • Ou, Y.J. (Department of Mechanics and Civil Engineering, Jinan University)
  • 투고 : 2015.12.20
  • 심사 : 2016.09.30
  • 발행 : 2016.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study aims to present a novel optimization algorithm known as gravitational search algorithm (GSA) for structural damage detection. An objective function for damage detection is established based on structural vibration data in frequency domain, i.e., natural frequencies and mode shapes. The feasibility and efficiency of the GSA are testified on three different structures, i.e., a beam, a truss and a plate. Results show that the proposed strategy is efficient for determining the locations and the extents of structural damages using the first several modal data of the structure. Multiple damages cases in different types of structures are studied and good identification results can be obtained. The effect of measurement noise on the identification results is investigated.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Guangdong Province Natural Science Foundation

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피인용 문헌

  1. Accelerated multi-gravitational search algorithm for size optimization of truss structures vol.38, 2018, https://doi.org/10.1016/j.swevo.2017.07.001