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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <link>https://trid.trb.org/</link>
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    <item>
      <title>A HIGH ORDER PANEL METHOD BASED ON SOURCE DISTRIBUTION AND GAUSSIAN QUADRATURE</title>
      <link>https://trid.trb.org/View/480948</link>
      <description><![CDATA[In panel methods used to compute potential flows, the body surface is traditionally approximated by a number of panels described by planes or quadratically curved surfaces, and the source distribution on each panel is assumed as constant, linear or quadratic function.  In the present method, however, the surface integrals are de-singularized by analytical manipulation to allow a numerical quadrature by Gauss's method.  This allows the mathematical surface definition to be used directly for the flow computation, giving source strength, velocity and pressure at an arbitrary number of Gauss points on each panel.  The order of approximation can be made very high, and it can be adapted to the complexity of the panel.  Numerical results for a sphere, ellipsoids, and a Wigley hull show that great accuracy is obtained with relatively few computing points.]]></description>
      <pubDate>Thu, 27 Mar 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/480948</guid>
    </item>
    <item>
      <title>AN IMPROVED FATIGUE ANALYSIS FOR OFFSHORE STRUCTURES</title>
      <link>https://trid.trb.org/View/439406</link>
      <description><![CDATA[This paper presents a spectral fatigue damage calculation on offshore structures subjected to non-narrow banded Gaussian stress processes.  The calculation is based on use of the Palmgren-Miner's rule and a multilinear S-N fatigue model.  In the calculation, an equivalent stress range, which is defined as dependent on the absolute value of stress maxima and a parameter, is used.  This parameter is calculated in terms of the spectral bandwidth measure of the stress process and the slope of the S-N line used.  For this purpose, the rainflow cycle counting algorithm and the Monte-Carlo procedure are used to determine stress ranges and cycles from time simulations of a number of stress spectra of a monopod structure.  A relation between the equivalent stress range parameter and the commonly known damage correction factor is constructed.  Cumulative damage arising during a sea state and in a long-term period is presented.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/439406</guid>
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    <item>
      <title>ON THE NON-GAUSSIAN STRUCTURE OF OCEAN WAVES</title>
      <link>https://trid.trb.org/View/449845</link>
      <description><![CDATA[Characteristics reflecting the non-Gaussian structure of deep water ocean waves are considered.  Parametric expressions for the coefficient of skewness and coefficient of excess (= coefficient of kurtosis - 3) are established theoretically.  Results are presented both for pure wind seas characterized by a single moded wave spectrum, and for sea states being of a combined nature, i.e. wind sea and swell.  The spectra corresponding to the latter type of sea states will typically be double peaked.  The effect of finite depth is also indicated.  The adequacy of the parameterizations, which involve commonly adopted sea state characteristics, is investigated by comparing them with results deduced from good quality laser measurements achieved during some few storm events in the Northern North Sea.  In connection with the presentation of the results of the data analysis, the vertical and horizontal asymmetries of extreme individual waves are also discussed.  Finally, the impact of possible deviations from the Gaussian assumption concerning necessary air gap is demonstrated.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/449845</guid>
    </item>
    <item>
      <title>STOCHASTIC MODELS FOR LOW-FREQUENCY, SPRINGING AND IMPACT LOADS ON SHIPS</title>
      <link>https://trid.trb.org/View/395955</link>
      <description><![CDATA[In this paper a complete review of stochastic models for low- frequency, springing and impact loads is presented. The sea is represented as a zero-mean random field, homogeneous and Gaussian if short time intervals are considered. Linearity is assumed and the first-order probability distribution of each load is obtained, as well as its extreme value distribution, taking account clumping effects. All different load combinations are analyzed and the relevant probability distributions are obtained. Finally the outcrossing probability of a vector process is discussed and all previous results are extended to the case of conditionally Gaussian models for the sea.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/395955</guid>
    </item>
    <item>
      <title>ON THE DETERMINATION OF DESIGN WAVE HEIGHT</title>
      <link>https://trid.trb.org/View/397005</link>
      <description><![CDATA[This paper discusses the use of the Largest Value Distribution (LVD) method for determining design wave heights within acceptable levels of the probability of exceedance. The LVD method is compared with the conventional method based on Weibull distribution statistics for typical wave data. The author cites a number of advantages of the LVD method over the Weibull distribution.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/397005</guid>
    </item>
    <item>
      <title>EXTREME VALUE DISTRIBUTIONS OF WAVE LOADS AND THEIR APPLICATION TO MARINE STRUCTURES</title>
      <link>https://trid.trb.org/View/397007</link>
      <description><![CDATA[The purpose of this study was to compare several extreme load distributions and to determine their impact on the probabilities of exceedence. The extreme value distribution of peaks of a stationary Gaussian process of any band width representing the load on a marine structure was determined on the basis of four different methods. The four resulting extreme distributions were then compared numerically for the case of a relatively narrow-band process and typical values of load parameters were determined for an ocean-going vessel.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/397007</guid>
    </item>
    <item>
      <title>BISPECTRUM OF SHIP-RADIATED NOISE</title>
      <link>https://trid.trb.org/View/398679</link>
      <description><![CDATA[Presently available signal- processing techniques manifest limitations in differentiating between background noise and ship- generated noise. This report presents an approach, known as bispectral analysis, that provides a potential improvement in the ability to distinguish between ship-radiated noise and background noise by utilizing a hidden feature of ship-generated noise that is not present in background noise.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/398679</guid>
    </item>
    <item>
      <title>A RING-SOURCE MODEL FOR JET NOISE</title>
      <link>https://trid.trb.org/View/77621</link>
      <description><![CDATA[A model consisting of two ring sources was developed to study the direct radiation of jet noise in terms of correlation, coherence, and phase and also to aid in solving the inverse radiation problem of determining the noise source in terms of far-field measurements. The rings consist of discrete sources which are either monopoles or quadrupoles with Gaussian profiles. Only adjacent sources, both within the rings and between rings, are correlated. Results show that from the far-field information can be used to determine when the sources are compact or noncompact with respect to the acoustic wavelength and to distinguish between the types of sources. In addition, from the inverse radiation approach, the center of mass, the location and separation distance of the ring, and the diameters can be recovered.]]></description>
      <pubDate>Sat, 29 Dec 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/77621</guid>
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    <item>
      <title>THE METHOD OF MAXIMUM LIKELIHOOD APPLIED TO THE STATISTICAL ANALYSIS OF FATIGUE DATA INCLUDING RUN-OUTS</title>
      <link>https://trid.trb.org/View/77646</link>
      <description><![CDATA[The application is described of the principle of maximum likelihood to the analysis of fatigue test results including run-outs. The particular method used is that developed by Edwards and called by him the method of support. The use of this method is described in determining means and standard deviations for test results, the determination of best-fit S-N curves with their associated standard deviations and the determination of the significance of differences between groups of results, different S-N curves and the determination of best common slopes and intercepts of such curves. A computer program is presented which was developed to perform the necessary calculations. Examples are given of the types of results produced by this analysis and of certain difficulties in interpretation.]]></description>
      <pubDate>Sat, 29 Dec 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/77646</guid>
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