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EN
The growing number of large high powered vessels operated in shallow water ports is the reason that port authorities and terminal operators are interested in online monitoring of loads generated by vessels during manoeuvers close to hydrotechnical constructions. The test version of the loads measurement system based on the mobile laboratory and commercial version of monitoring system based on the cloud technology are presented in the paper.
EN
In recent years, container ships have had to transport more and more goods due to constantly growing demand. Therefore, the container ships for carrying these goods are growing in size, while the harbors fall short in adapting to these changes. As a result, the berthing of these container ships in harbors has become more challenging for harbor pilots. In this work, we identify problems and risks with which pilots are confronted during the berthing process. First, we analyzed approximately 1500 accident reports from six different transportation safety authorities and identified their major causes. Second, we conducted an ethnographic study with harbor pilots in Hamburg to observe their actions. Third, we gained more specific insights on pilots environments and communications through an online survey of 30 harbor pilots from different European countries. We conclude our work with recommendations on how to reduce problems and risks during berthing of container vessels.
3
Content available remote Parametric analysis of hydrodynamic forces during berthing operations
EN
Prediction of hydrodynamic forces induced during self-berthing is the most important problem in modelling ship - berth interactions. The paper presents the parametric analysis of these forces, performed using the results of open water model tests and proposed regression models. The study allowed to quantify the importance of examined parameters, necessary in the development of the completed model of interaction forces with aim of its further application in the simulation model of ship manoeuvring motions.
PL
Przewidywanie sił hydrodynamicznych powstających podczas samodzielnego cumowania statku stanowi najistotniejszy problem podczas modelowania sił oddziaływania statek-nabrzeże. W artykule przedstawiono analizę parametryczną tych sił w oparciu o wyniki badań modelowych oraz zaproponowane modele regresyjne. Przeprowadzone badania pozwoliły określić istotność badanych parametrów, potrzebną przy opracowaniu całościowego modelu sił oddziaływania statek-nabrzeże i jego aplikacji w modelu symulacji ruchu statku.
4
Content available remote Some problems of berthing of ships with non-conventional propulsions
EN
The berthing manoeuvre of ship is the last stage of navigation process. The safety of berthing depends on velocity due impact the quay. In case of ships with non-conventional propulsion (mainly two stern screws and few thrust propellers) the berthing manoeuvres are different then other ships. The paper presents an analysis the kind of ships power and their manoeuvrability features in aspect of safety berthing.
PL
Podano stan wiedzy w zakresie opisu nieustalonego przepływu trójwymiarowego indukowanego podczas równoległego cumowania statku do nabrzeża. Przedstawiono wyniki pomiarów rzeczywistego pola prędkości, otrzymane podczas manewrów statku "Horyzont II" przeprowadzonych w porcie Gdynia. Na obecnym etapie badań posłużyły one do jakościowej oceny zjawisk decydujących o wielkości występujących sił hydrodynamicznych.
EN
The paper presents the state of art on three dimensional transient flows induced by a ship approaching a berthing structure. The results of full scale measurements of the velocity field obtained during the trials conducted in Gdynia Port with the motor ship "Horyzont II" are given. At the present stage of research the results of measurements have been used for the qualitative assessment of phenomena and making preliminary conclusions regarding the hydrodynamic forces.
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