線形多自由度系の動特性の推定

  • 星谷 勝
    社団法人 土木学会 武蔵工業大学 土木工学科
  • 斉藤 悦郎
    社団法人 土木学会 フジタ工業 (株) 技術研究所 現・武蔵工業大学土木工学科応用力学研究室

書誌事項

タイトル別名
  • ESTIMATION OF DYNAMIC PROPERTIES OF A MULTIPLE DEGREE OF FREEDOM LINEAR SYSTEM
  • センケイ タジユウドケイ ノ ドウトクセイ ノ スイテイ

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抄録

This paper studies an efficient method of estimation of dynamic properties such as natural frequencies, modal damping coefficients and participation factors, of multiple degree of freedom linear system. The EK-WGI method which was previously proposed by the present authors is used for the solution of a system identification problem. To solve a multiple degree of freedom linear system, the modal analysis technique is corporated into the formulation of the state space equation. It is found that dynamic properties can be estimated even if an excitation and a single response time history at any point of mass are available. It is also found that if observed response at each mass are available for the identification, they can be used for the verification of estimated dynamic properties.

収録刊行物

  • 土木学会論文集

    土木学会論文集 1984 (344), 289-298, 1984-04-20

    公益社団法人 土木学会

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