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Criteria for the mooring forces of ocean-going ships in locks
Vrijer, A. (1977). Criteria for the mooring forces of ocean-going ships in locks, in: La technique hydraulique au service d'une gestion améliorée de l'eau: 17e congrès, Baden-Baden, août 1977: comptes-rendus tome 4. Sujet C. Amélioriation des critères de conception des structures hydrauliques = Hydraulic engineering for improved water management: 17th congress, Baden-Baden, Aug. 1977, proceedings: vol. 4. Subject C. Improved design criteria for hydraulic structures. pp. 127-134
In: (1977). La technique hydraulique au service d'une gestion améliorée de l'eau: 17e congrès, Baden-Baden, août 1977: comptes-rendus tome 4. Sujet C. Amélioriation des critères de conception des structures hydrauliques = Hydraulic engineering for improved water management: 17th congress, Baden-Baden, Aug. 1977, proceedings: vol. 4. Subject C. Improved design criteria for hydraulic structures. International Association for Hydraulic Research = Association Internationale de Recherches Hydrauliques: Lausanne. 570 pp., more

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Document type: Conference paper

Keywords
    Criteria; Forces; Hydrodynamics; Models; Mooring; Ship behaviour

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  • Vrijer, A.

Abstract
    For the quantitative analysis of model investigations concerning the mooring forces of ships; criteria have to be defined.
    The criterium applied in this paper is that the ratio of the hydrodynamic force and the ship's displacement should not exceed a distinct value.
    From investigations concerning the representative mooring outfit of ships, their normal behaviour in the lock and the influence of external hydrodynamic forces acting on the ship when berthed, criteria for the mooring forces have been determined for ships up to 150,000 DWT.
    The origin of the external hydrodynamic forces have been left out of consideration. It appears that the criteria for the mooring forces of ocean-going ships are low, in addition they are to a great extent dependent on the pre-tension in the mooring lines and they are decreasing accordingly as the size of the ships increases.

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