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Effect of passing shipping traffic on moored vessels equipped with external mooring devices
Pauwelyn, H. (2015). Effect of passing shipping traffic on moored vessels equipped with external mooring devices. MSc Thesis. Ghent University. Faculty of Engineering and Architecture: Ghent. xiv, 164 pp.

Thesis info:

Beschikbaar in  Auteurs 
Documenttype: Doctoraat/Thesis/Eindwerk

Auteurs  Top 
  • Pauwelyn, H.
  • Vantorre, M., revisor, meer
  • Eloot, K., revisor, meer

Abstract
    In this master thesis, the effect of passing vessels on moored vessels who use external mooring systems, is discussed. A moored vessel encounters forces due to wind, current and passing vessels. The mooring system should keep the vessel in the same place, keeping the motions as small as possible. These motions also create forces in the fenders and the mooring lines. Software helps to predict the forces due to the external aspects and simulates the forces in line and fenders and the motion of the moored vessel. This software is used to predict the reaction of a vessel moored and here in detail with a ShoreTension system. Other systems are discussed briefly.
    Before using the software to predict the reaction of the ShoreTension system, the software is compared to measurement data conducted at the harbour of Antwerp at the Noordzee terminal. The data of four moored vessels is collected and 10 passing events are chosen for comparison of simulation and measurements. Three of the four vessel are moored without ShoreTension, to test the validity of the base software, and the last vessel, APL Chingqong, was moored with help of four ShoreTension units, to validate the implementation of the use of ShoreTension in the software code.

    In the simulation runs, the motion of the vessel is measured with and without the use of ShoreTension system. After finding the most useful way of set-up of the ShoreTension units, the effect of different parameters on the efficiency of ShoreTension is discussed.
    The different parameters are: passing distance, passing speed, dimensions moored vessel, dimensions passing vessel, depth of channel, current and wind. In the simulation software, slip on the mooring winches can be included as well and the effect of this slip on the motion of the vessel is discussed. The effect of another external mooring system, vacuum mooring, is discussed briefly. The advantage and disadvantage of this system compared to ShoreTension are discussed.


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