On alternative approaches to linearization and Morison's equation for wave forces

Julian Wolfram

    Research output: Contribution to journalArticle

    Abstract

    The limitations of the 'equivalent linearization' approach are discussed and an alternative approach is advocated based on the idea of 'corresponding linear forms' which give unbiased estimates for the output quantity required from an analysis. The application of the alternative approach is illustrated by developing corresponding linear forms for Morison's equation applicable to the estimation of extreme wave loading and the estimation of wave-induced fatigue loading. These corresponding linear forms differ only in a linearization factor and expressions for this are obtained for both cases. It is shown that the linearization factor varies not just with the nature of the output but also with the relative magnitudes of the drag and inertia terms in Morison's equation. The application of the alternative approach to the oscillatory motion of bodies is discussed briefly. © 1999 The Royal Society.

    Original languageEnglish
    Pages (from-to)2957-2974
    Number of pages18
    JournalProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
    Volume455
    Issue number1988
    Publication statusPublished - 1999

    Keywords

    • Extreme loading
    • Fatigue
    • Linearization
    • Morison's equation
    • Offshore structures
    • Wave force

    Fingerprint Dive into the research topics of 'On alternative approaches to linearization and Morison's equation for wave forces'. Together they form a unique fingerprint.

  • Cite this