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    Closed-form approximations and series representations for partially saturated ocean acoustic processes

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    1988_Closed_form_approximations.pdf (610.2Kb)
    Downloads: 172
    Date
    1988-04-01
    Author
    Perakis, Anastassios N.
    Nikolaidis, Efstratios
    Katzouros, Emmanuel
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    Abstract
    An approximate, closed-form expression for the value of the integral encountered in the calculation of the probability density function (PDF) of the envelope of a partially saturated ocean acoustic process is obtained. Furthermore, an expression of this PDF as a series of modified Bessel functions is presented. The results may also be directly applied to the evaluation of the PDF encountered in the structural reliability analysis of rotating machinery components. Numerical applications show that the closed-form expression is always within 1-2% of the exact result. The required computational effort is substantially lower than that required by direct numerical integration. Copyright 1988 Acoustical Society of America
    URI
    http://hdl.handle.net/10919/52267
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    • Scholarly Works, Department of Aerospace and Ocean Engineering [54]

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