The problem of pitch stabilization of ships is considered for different vessels of varying size, with application to both commercial and military craft. The various operational benefits of pitch stabilization are described, together with the history of prior efforts applied to this problem area by use of hydrodynamic force elements (i.e., fins or other lifting surfaces), including a discussion of the limiting hydrodynamic phenomena and vessel behavior that have inhibited the use of pitch stabilization with fins. Efforts to overcome some of these limiting features involve approaches using hydrodynamic lifting surfaces in a different manner. These approaches consider fin location in the stern region; the effect of the propeller race; specific types of control system command rules; and the use of special high lift hydrofoils dependent on flow control. Results of the program to date are presented, based upon theoretical analysis and actual demonstration on a small vessel at sea. The beneficial results obtained on a 12.80 m (42 ft) cabin cruiser when equipped with controlled fins in at-sea tests in the Pacific Ocean support the basic concept of achieving useful pitch stabilization of ships in a seaway.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Ship Pitch Stabilization - Progress and Prognosis


    Beteiligte:
    A. E. Baitis (Autor:in) / P. Kaplan (Autor:in) / A. Clark (Autor:in) / G. Gaudin (Autor:in)

    Erscheinungsdatum :

    1984


    Format / Umfang :

    25 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Ship stabilization

    Bell, J. | Engineering Index Backfile | 1963


    Ship stabilization

    Schein, A. | Engineering Index Backfile | 1925


    VARIABLE PITCH PROPELLER FOR SHIP

    YAMAMA TOSHIO / UOTA NAOKI / SAKURAI TAKAYA | Europäisches Patentamt | 2017

    Freier Zugriff

    Pitch Stabilization for Surface Combatants

    Ferreiro, Larrie D. | Online Contents | 1994


    Ship stabilization device

    DU YU / LI FEIPENG | Europäisches Patentamt | 2023

    Freier Zugriff