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NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Engineering > Bulletin > Reports of the Faculty of Engineering, Nagasaki University > Volume 19, No. 32 >


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Title: 衝撃加振による道路橋の動的特性推定
Other Titles: Dynamic Paramer Estimation of Highway Bridge by Impact Excitation
Authors: 岡林, 隆敏 / 小西, 保則 / 龍, 博志 / 有角, 明
Authors (alternative): Okabayashi, Takatoshi / Konishi, Yasunori / Ryu, Hiroshi / Arikado, Akira
Issue Date: Jan-1989
Publisher: 長崎大学工学部 / Faculty of Engineering, Nagasaki University
Citation: 長崎大学工学部研究報告, 19(32), pp.71-78; 1989
Abstract: An algorithm of the nonliner least square method for the multi-degree of freedom curve fitting method is developed for obtaining the stable and convergent solution. An observation response of a structural system is simulated by adding Gaussian white noise to the response which is calculated by the impact response analysis for a Trussed Langer bridge based on the FEM modeling. The modal circle fitting method and the multi-degree of freedom curve fitting method are tested on simulation data varying SN ratio 0 to 20%. The numerical results are shown that the proposed procedure derives the stable solution and this solution has higher accuracy than the solution by the modal circle fitting method.
URI: http://hdl.handle.net/10069/24290
ISSN: 02860902
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 19, No. 32

Citable URI : http://hdl.handle.net/10069/24290

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