Construction of Time-Dependent Spectra Using Wavelet Analysis for Determination of Global Damage

R. C. Micaletti, A. S. Cakmak, Søren R.K. Nielsen, Poul Henning Kirkegaard

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    Abstract

    A new method for computing Maximum Softening Damage Index (MSDI) is proposed. The MSDI, a measure of global damage, is based on the relative reduction of the first eigenfrequency (or equivalently, the relative increase in the fundamental period) of a structure over the course of a damage event. The method proposed here makes use of wavelet transform coefficients of measured output response records to provide time-localized information on structural softening.
    OriginalsprogEngelsk
    UdgivelsesstedAalborg
    ForlagDept. of Building Technology and Structural Engineering
    Antal sider12
    StatusUdgivet - 1995
    NavnStructural Reliability Theory
    Nummer147
    Vol/bindR9517
    ISSN0902-7513

    Bibliografisk note

    Presented at the Noise and Vibration Engineering Conference, Leuven, Belgium, September 1996

    PDF for print: 20 pp.

    Emneord

    • Maximum Softening Damage Index
    • MSDI
    • Eigenfrequency
    • Fourier Transformation
    • Reinforced Concrete
    • Moving Window Transfer Function
    • MWTF

    Citationsformater