Wyniki wyszukiwania - BazTech

1

Analysis of navigational casualties within European waters and case study

Kerbrat A.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

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2021

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Vol. 15 No. 4

729--736

EN

Work shortly analyses statistics of maritime casualties registered by European Maritime Safety Agency (EMSA) for years 2014-2019 and gives short description of chosen collisions that took place in last ten years. Article points out main causes of navigational accidents and the need to keep improving navigators skills and operation of systems available on board to minimalize risk of collision or grounding due to human error. In this work very small sample is presented and author mainly focuses on European waters and incidents investigated by only one maritime authority – Danish Maritime Accidents Investigation Board (DMAIB).

2

Study on striking ship with loading impact on the performance of the double hull oil tanker collision

Wu W., Yang Y., Zhang J., Lu J.

Polish Maritime Research

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2018

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S 2

42--48

EN

Due to the great danger of the collision of oil tankers, lots of research on the collision of oil tankers has been carried out. But, at present, the research on the collision of oil tankers mainly focuses on the loading condition of the struck ship, ignores the impact on the loading condition of the striking ship. However, during the actual oil tanker collision, the striking ship is generally in the state of loading. Therefore, it is necessary to carry out the analysis of the impact of the loading condition of the striking ship on the collision damage of the oil tanker. In this paper, the effect of striking ship with loading on the impact performance of the side structure during the collision of the cargo double hull oil tanker has been investigated. The ship collision model was established by using the finite element software ANSYS/ LS-DYNA which is based on 7000 tons of double hull oil tankers. Based on the analysis of the collision force, impact of striking speed changes, impact of striking deep changes and structural energy absorption during the collision process, the influence of the striking ship with loading on the damage mechanism and the impact performance of the double shell oil ship side structure was expounded. The results show that the influence of the striking ship with loading can be great to the damage to side hull during the research of the collision performance of the oil tanker.

3

4M Overturned Pyramid (MOP) Model Utilization: Case Studies on Collision in Indonesian and Japanese Maritime Traffic Systems (MTS)

Mutmainnah W., Furusho M.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

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2016

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Vol. 10, no. 2

257--264

EN

4M Overturned Pyramid (MOP) model is a new model, proposed by authors, to characterized MTS which is adopting epidemiological model that determines causes of accidents, including not only active failures but also latent failures and barriers. This model is still being developed. One of utilization of MOP model is characterizing accidents in MTS, i.e. collision in Indonesia and Japan that is written in this paper. The aim of this paper is to show the characteristics of ship collision accidents that occur both in Indonesian and Japanese maritime traffic systems. There were 22 collision cases in 2008–2012 (8 cases in Indonesia and 14 cases in Japan). The characteristics presented in this paper show failure events at every stage of the three accident development stages (the beginning of an accident, the accident itself, and the evacuation process).

4

Quantitative assessment of risk to ship traffic in the fehmarnbelt fixed link project

Rasmussen F. M., Glibbery K. A. K., Melchild K., Hansen M. G., Jensen T. K., Lehn-Schiøler T., Randrup-Thomsen S.

Journal of Polish Safety and Reliability Association

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2012

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Vol. 3, No. 1

123--134

EN

Rambøll is on behalf of Femern A/S carrying out navigational studies of the vessel traffic conditions in the Fehmarnbelt in connection with the establishment of a future Fehmarnbelt fixed link, a 19 km long bridge or immersed tunnel connection crossing the Fehmarnbelt. The focus is on documenting safety and efficiency for the vessel traffic when a fixed link is crossing the Fehmarnbelt. Rambøll has developed the ShipRisk software package to perform the quantitative risk assessments in the Fehmarnbelt fixed link project. Focus in this article is on describing the background for estimating frequencies of ship accidents in ShipRisk and describe factors influencing the accident scenarios and present the work performed for testing and verifying the model.

5

Modelowanie czynników ryzyka zderzenia jednostek pływających z konstrukcjami portowymi i pełnomorskimi

Gucma L.

Studia / Akademia Morska w Szczecinie

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2005

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nr 44

3-239

PL

W pracy zbudowano ogólny, probabilistyczny model zderzenia statku z konstrukcjami morskimi, zarówno portowymi jak i pełnomorskimi oraz opracowano i usystematyzowano wiarygodne metody określania prawdopodobieństwa zderzenia statku z różnymi obiektami stałymi, w szczególności z konstrukcjami hydrotechnicznymi w celu zastosowania tych metod do kompleksowej oceny ryzyka manewrowania statku na akwenach ograniczonych. Do najważniejszych metod można zaliczyć: te, które polegają na uogólnieniu badań symulacyjnych, metody kompleksowe, złożone z więcej niż jednej metody, oraz metody wykorzystujące teorie strumienia ruchu statków. Autor zaproponował również pewne grupy badań w warunkach rzeczywistych, których głównym celem jest weryfikacja metod modelowych. W analizie zderzeń statków z konstrukcjami stałymi zastosowano specjalne metody, w tym między innymi metody Monte Carlo. W pracy przedstawiono również metody określania uszkodzeń pośrednich, jakie może powodować statek w wyniku eksploatacji. Uszkodzenia takie to awarie spowodowane kotwiczeniem, strumieniem zaśrubowym i falowaniem generowanym przez przepływające statki. Określono zakres stosowalności i ograniczenia istniejących metod. Ponadto, zebranie wszystkich metod określania prawdopodobieństwa wypadków nawigacyjnych, pozwoliło na budowę metod kompleksowych, służących do oceny bezpieczeństwa złożonych systemów inżynierii ruchu morskiego, co nie było dotychczas możliwe. Prezentowane metody dotyczą wyznaczania prawdopodobieństwa zderzenia statku z obiektami stałymi dla większości możliwych sytuacji eksploatacyjnych, w jakich może znaleźć się statek podczas prowadzenia nawigacji na akwenach ograniczonych. Mogą one być zastosowane dla różnych typów statków wyposażonych w różne rodzaje napędu oraz dla różnych typów manewrów i stanów eksploatacyjnych. Metody te mogą odnosić się także do różnych typów akwenów ograniczonych (portowe, przybrzeżne).

EN

This work deals with a general probabilistic model of ship's collision with port and offshore structures. Besides, reliable methods for the determination of ship collision with stationary objects, port structures in particular, have been developed and systematically presented. The methods have been designed for a comprehensive evaluation ofthe ship manoeuvring risk in restricted areas. These complex methods consist in the generalization of simulation research data. The methods, often combining two or more methods, make use of the theories of vessel traffic streams. Author has proposed certain groups of the research in real conditions that basically aims at the veri:fication of model-based methods. Special methods, such as Monte Carlo methods, have been used for the analysis of ship collisions with stationary objects. This work also demonstrates methods of determining indirect damage that can be caused by an operating ship. This kind of damage is due to accidents resulting from anchoring, forces of the propeller stream and waves generated by passing ships. The scope ofpossible applications and limitations of the existing methods have also been de:fined. Moreover, the collection of all methods applied in the determination of navigational accident probability made it possible to develop complex methods used for the assessment of complex marine traf:fic engineeiing systems, which has not been possible so far. The presented methods refer to the determination of the probability of ship's collision with stationary objects in most of the operating situations a ship may encounter itself while navigating in a restricted area. The methods can be used for various types of ships equipped with various types of propulsion and for a variety of manoeuvres and operating states. Moreover, these methods can be used in case ofvarious types ofrestricted areas, such as port or offshore waters.

6

Optimization of ship's trajectory in collision situation

Żak B.

Journal of Technical Physics

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2002

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Vol. 43, no 1

69-79

EN

The paper presents a method used to determine the minimum-time control of ships in a situation of collision with other objects afloat. It also includes the results of simulation study conducted by means of this method. Parallel approaching of a ship to an encountered object was studied, i.e. a situation generating a critical case - collision of two ships.

7

Kierunki zmian w międzynarodowych przepisach o zapobieganiu zderzeniom na morzu

Plewiński L.

Zeszyty Naukowe / Wyższa Szkoła Morska w Szczecinie

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2001

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nr 62

81-91

PL

Obecna wersja przepisów o zapobieganiu zderzeniom na morzu stosowana na wodach dostępnych przez statki morskie, obowiązuje już ponad 23 lata. W tym okresie miały miejsce zarówno poważne, jak i "kosmetyczne" korekty i uzupełnienia ich treści. Zasadniczym celem artykułu jest prezentacja i analiza ważniejszych zmian, w powiązaniu z właściwą interpretacją odpowiednich prawideł. Podjęto również próbę oceny dotychczasowej nowelizacji analizowanych przepisów w aspekcie bezpieczeństwa na morzu.

EN

The present version of rules concerning collisions at sea has been applied on waters accessible by sea-going vessels and has been valid for over 23 years. This period includes both 'serious' and 'cosmetic' corrections and supplements. The main purpose of the article is to present and analyse the most important changes, with proper interpretation of the regulations. An attempt has also been made to evaluate the amendments of analysed rules made so far in the aspect of safety at sea.