A general analysis of the added mass and damping of a marine propeller in all modes of rigid body vibration is presented. This derivation assumes that the pressure distribution on a propeller blade due to a unit heave oscillation or unit pitch oscillation about the midchord point can be obtained by two-dimensional thin foil theory, lifting-line theory, or lifting-surface theory. These results show that eighteen coefficients are needed to completely characterize the added mass and damping of a propeller. The use of two-dimensional thin foil theory and lifting-line theory to obtain the pressure distribution on a propeller blade due to a unit heave oscillation or unit pitch oscillation are reviewed. These results have been utilized in the PRAMAD computer program which calculates the added mass and damping of a vibrating propeller.


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    Titel :

    Added mass and damping of vibrating propeller


    Weitere Titelangaben:

    Bestimmung und Daempfung von vibrierenden Propellern


    Beteiligte:
    Parsons, M. (Autor:in) / Vorus, W. (Autor:in) / Richard, E. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1980


    Format / Umfang :

    137 Seiten


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch




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