• transmissibility of non-linear output frequency response functions with application in detection and location of damage in mdof structural systems

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 884
    • تعداد پرسش و پاسخ ها: 0
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     transmissibility is a well-known linear system concept that has been widely applied in the diagnosis of damage in various engineering structural systems. however, in engineering practice, structural systems can behave non-linearly due to certain kinds of damage such as, e.g., breathing cracks. in the present study, the concept of transmissibility is extended to the non-linear case by introducing the transmissibility of non-linear output frequency response functions (nofrfs). the nofrfs are a concept recently proposed by the authors for the analysis of non-linear systems in the frequency domain. a nofrf transmissibility-based technique is then developed for the detection and location of both linear and non-linear damage in mdof structural systems. numerical simulation results verify the effectiveness of the new technique. experimental studies on a three-storey building structure demonstrate the potential to apply the developed technique to the detection and location of damage in practical mdof engineering structures.

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