Eigenfrequecy-based damage identification method for non-destructive testing based on topology optimization

T. Nishizu, A. Takezawa*, M. Kitamura

*この研究の対応する著者

研究成果: Article査読

6 被引用数 (Scopus)

抄録

Non-destructive testing (NDT) detects damage according to a difference in a physical phenomenon between a normal structure and damaged structure. As a solution avoiding human errors in NDT, a numerical method based on a dynamical numerical analysis model and a structural optimization algorithm was proposed. This method automatically derives a structure with a response that is equal to that of a damaged structure through an optimization procedure. Among structural optimization methods, topology optimization can optimize the structure fundamentally by changing the topology and not just the shape of a structure. Thus, topology optimization is employed together with eigenfrequency analysis, which is the most fundamental methodology of NDT. The proposed method derives a structure that has the same eigenfrequencies as a damaged structure employing topology optimization. The shape and location of damage can be identified through the optimal shape obtained.

本文言語English
ページ(範囲)417-433
ページ数17
ジャーナルEngineering Optimization
49
3
DOI
出版ステータスPublished - 2017 3月 4
外部発表はい

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 制御と最適化
  • 経営科学およびオペレーションズ リサーチ
  • 産業および生産工学
  • 応用数学

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