Attention is focused on a power spectral density (PSD) method in order to evaluate runway roughness from the standpoint of airplane loads, and a procedure for estimating runway spectra is examined. It is shown that the low order trend (long wavelength component) included in a runway profile can seriously impair the estimated spectra, and therefore, a simple method to remove this trend is obtained. Next, power spectra of sixteen commercial runways are estimated, including the spectra of symmetric and anti-symmetric components between two tracks, to provide airplane design data on ground loads. Comparing the runway spectra obtained before and after overlay repair of runway surface, it is shown that the power spectral presentation is an effective method to evaluate runway roughness.


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    Title :

    Estimation of Power Spectral Density of Runway Roughness


    Contributors:
    K. Yamane (author) / T. Sotozaki (author)

    Publication date :

    1989


    Size :

    33 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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