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    Sensitivity Study for Vibrational Parameters Used in Damage Detection

    Source: Journal of Structural Engineering:;1999:;Volume ( 125 ):;issue: 004
    Author:
    Jun Zhao
    ,
    John T. DeWolf
    DOI: 10.1061/(ASCE)0733-9445(1999)125:4(410)
    Publisher: American Society of Civil Engineers
    Abstract: A number of researchers have proposed using vibrational behavior to monitor structures. When significant damage occurs, there are changes in the structural stiffness. This causes changes in the vibrational information. The basic vibrational information normally collected in field monitoring are the natural frequencies and mode shapes. These can be further processed to modal flexibilities. This paper presents a sensitivity study comparing use of natural frequencies, mode shapes, and modal flexibilities for monitoring. The results demonstrate that modal flexibilities are more likely to indicate damage than either natural frequencies or mode shapes.
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      Sensitivity Study for Vibrational Parameters Used in Damage Detection

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    contributor authorJun Zhao
    contributor authorJohn T. DeWolf
    date accessioned2017-05-08T20:57:22Z
    date available2017-05-08T20:57:22Z
    date copyrightApril 1999
    date issued1999
    identifier other%28asce%290733-9445%281999%29125%3A4%28410%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/33166
    description abstractA number of researchers have proposed using vibrational behavior to monitor structures. When significant damage occurs, there are changes in the structural stiffness. This causes changes in the vibrational information. The basic vibrational information normally collected in field monitoring are the natural frequencies and mode shapes. These can be further processed to modal flexibilities. This paper presents a sensitivity study comparing use of natural frequencies, mode shapes, and modal flexibilities for monitoring. The results demonstrate that modal flexibilities are more likely to indicate damage than either natural frequencies or mode shapes.
    publisherAmerican Society of Civil Engineers
    titleSensitivity Study for Vibrational Parameters Used in Damage Detection
    typeJournal Paper
    journal volume125
    journal issue4
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)0733-9445(1999)125:4(410)
    treeJournal of Structural Engineering:;1999:;Volume ( 125 ):;issue: 004
    contenttypeFulltext
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