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《Journal of Hydraulic Engineering》 2009-11
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Progress of research on backward problems of hydraulic structure dynamics induced by flow excitation

ZHANG Jian-wei~1,LIAN Ji-jian~2,WANG Hai-jun~2(1.North China of University Water Conservancy and Electric Power,Zhengzhou 450011,China2.School of Civil Engineering,Tianjin University,Tianjin 300072,China)  
A summary on the advancement of study on backward problems of hydraulic structure excitated by flow is presented vibration-based health monitoring for structures under ambient-excitation is becoming a hot research subject in the present structural engineering circle due to its promising prospects of application.Aimed at many operating safe problems,backward problems are summarized from dynamics combined with the characteristic of flow induced excitation.Firstly,the problems existed in dynamical forward problems of flow-induced vibration,the necessity and instancy to go on the study of backward problems,and the four sorts of dynamical problems,and also the relationship between forward and backward problems are all expounded.Then the backward problems are retrospected and commented from modal parameter identification,excitation source identification,damage diagnosis and monitoring of hydraulic structure.Finally,the confronted problems and research points of dynamical backward problems in hydraulic structure are prospected.
【Fund】: 国家杰出青年科学基金(50725929);; 华北水利水电学院高层次人才科研启动项目(001226)
【CateGory Index】: TV312
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