き裂を有する変断面はりの固有振動およびき裂同定

• 堀辺 忠志

• 浅野 直輝

• 岡村 弘之

書誌事項

タイトル別名

• Natural Frequencies of Tapered Beam with a Crack and Crack Identification using Genetic Algorithm.
• キレツ オ ユウスル ヘン ダンメンハリ ノ コユウ シンドウ オヨビ キレツ ドウテイ

抄録

This paper describes a study on an inverse analysis method to identify the crack parameters of nonuniform beams by the simple genetic algorithm. The crack is simulated by an equivalent rotational spring model. By using this approximate model, a characteristic equation to calculate the natural frequencies of the system are derived employing the Rayleigh-Ritz method. In order to identify the crack location and the depth of the beam from frequency measurements, objective function that consists of the sum of square errors of frequencies is formed. The genetic algorithm is used to search the minimum value of the objective function. The proposed method is verified by the numerical simulation of some sample problems.

収録刊行物

• 日本機械学会論文集Ｃ編

  日本機械学会論文集Ｃ編 67 (657), 1366-1372, 2001

  一般社団法人 日本機械学会

キーワード

• Free Vibration
• Eigenvalue Analysis
• Non-Uniform Beam with a Crack
• Inverse Problem
• Crack Identification
• Genetic Algorithm

詳細情報

• CRID: 1390282681304425728
• NII論文ID: 130004234034
• NII論文ID: 110002386157
• NII書誌ID: AN00187463
• DOI: 10.1299/kikaic.67.1366
• ISSN: 18848354
• ISSN: 03875024
• NDL書誌ID: 5774506
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5774506
• Web Site: http://www.jstage.jst.go.jp/article/kikaic1979/67/657/67_657_1366/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可