Autor: Yabuki, H. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Emergency Unberthing without Tug Assistance
Autorzy:: Kunieda, Y.
Yabuki, H.
Okazaki, T.
Powiązania:: https://bibliotekanauki.pl/articles/116447.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: Emergency Situation
Emergency Unberthing
Tug Assistance
Unberthing without Tug
Pure Car Carrier (PCC)
Ship Maneuvering Simulator (SMS)
Mathematical Modeling Group (MMG)
Emergency Scenario
Opis:: Shipmasters may have to perform unberthing without tugboat assistance when a tsunami warning is issued. Keeping this in mind, we studied emergency unberthing without tug assistance by conducting numerical simulations and full-mission ship maneuvering simulator (SMS) experiments. A panamax class medium-sized bulker and a pure car carrier (PCC) were used as test ships. In the experiments, we established the limitations of basic shiphandling techniques such as stern kick out, backing, and accelerating turn in windy conditions using a mathematical modeling group (MMG)-type mathematical maneuvering model. On the basis of the results, we produced a shiphandling scenario and evaluated it using SMS experiments. We concluded that unberthing without tug assistance in 5 m/s onshore winds is possible. Furthermore, the use of thrusters can greatly reduce the time required for unberthing.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 3; 367-374
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Simulation study on the Influence of EEDI requirements to shiphandling in heavy weather
Autorzy:: Nishizaki, C.
Okazaki, T.
Yabuki, H.
Yoshimura, Y.
Powiązania:: https://bibliotekanauki.pl/articles/116458.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: ship handling
Energy Efficiency Design Index (EEDI)
CO2
heavy weather
main engine
Energy Efficiency Operational Index (EEOI)
Maritime Environmental Protection Committee (MEPC)
Pure Car Carrier (PCC)
Opis:: In order to reduce the CO2 emission from ships, International Maritime Organization executes the restriction of Energy Efficiency Design Index (EEDI) which limits amount of CO2 when freight of one ton is carried at one mile. Although the realization of higher efficiency of main engine without reduction of engine output is the best solution, it might be impossible. To comply with the EEDI requirements, it is assumed that the ship’s engine power becomes smaller than the existing ship by means of improving the ship propulsive efficiency. However, shiphandling in rough seas is expected to become difficult when the engine power is reduced. In this paper it is shown that the influence of the degraded main engine exerts on the safety of shiphandling in heavy weather based on the simulation study. In these experiments, both the simulation model that decreased engine power corresponding to EEDI requirement and that with the conventional engine power were tested, and masters in active service maneuvered the test ships in the rough seas.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 4; 855-860
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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