Abstract:In offshore oil &gas production there is a large concentration of platforms in a limited area of the sea, with the consequent increase of vessel traffic in the region. Platform supply vessels (PSVs), shuttle tankers and maintenance and safety units operate very close to these production platforms, creating a propitious scenario for collisions. Thus, the risk of collision between vessels and platforms has significantly increased, causing concern from the point of view of life loss, material damage and marine en… Show more
“…Simulation methods based in Computational Fluid Dynamics (CFD) should be employed to analyze accidents related to flooding, fire and explosions, and oil spills, as demonstrated by Zhang et al [83], Xie et al [84], and Tkalich [85], respectively. On the other hand, structural analyses, using tools such as Finite Element Methods (FEM), could be employed to investigate collision and grounding accidents, as proposed by Martinez et al [86] and Prabowo et al [87], respectively. -Seeking more government support: To promote and strengthen the support of the government in terms of funds for passenger accident prevention [74,88], including outreach and dissemination activities through regional media are needed.…”
Section: Preventative Measures To Reduce Passenger Ship Accidents In ...mentioning
The Brazilian Amazon is part of one of the largest river systems in the world, in which the transport of cargo and passengers is commonplace. However, several accidents still occur to passenger ships, causing fatalities. Transportation occurs commonly in remote regions, where there are transport inequalities, and emergency assistance is hard to find. This can affect sustainability in communities with considerable levels of economic and social vulnerability. More information is needed about accidents involving inland transport in the Amazon, to identify the threats to ships and propose strategies for accident prevention. This paper addresses the main problems that long-distance passenger ships face in the Brazilian Amazon, presenting an integrated framework towards accident prevention. First, the present situation is characterized in terms of ship description, spatial distribution, and regulations that are applicable. Next, possible causes of passenger ship accidents are discussed, including topics of concern that should be considered in the Amazon waterways. Finally, measures to help minimize passenger ship accidents are proposed, and the social relevance is discussed. It was found that accidents in the Amazon are due to a combination of human and environmental factors. Stakeholders should strengthen the technical and legal training of ship operators. The use of new technologies for navigational aid and necessary maintenance of ships is suggested. Marine accident prevention initiatives should consider local conditions, such as environmental preservation, cultural respect, and difficulties related to navigation through the complex riverine system of the Amazon region.
“…Simulation methods based in Computational Fluid Dynamics (CFD) should be employed to analyze accidents related to flooding, fire and explosions, and oil spills, as demonstrated by Zhang et al [83], Xie et al [84], and Tkalich [85], respectively. On the other hand, structural analyses, using tools such as Finite Element Methods (FEM), could be employed to investigate collision and grounding accidents, as proposed by Martinez et al [86] and Prabowo et al [87], respectively. -Seeking more government support: To promote and strengthen the support of the government in terms of funds for passenger accident prevention [74,88], including outreach and dissemination activities through regional media are needed.…”
Section: Preventative Measures To Reduce Passenger Ship Accidents In ...mentioning
The Brazilian Amazon is part of one of the largest river systems in the world, in which the transport of cargo and passengers is commonplace. However, several accidents still occur to passenger ships, causing fatalities. Transportation occurs commonly in remote regions, where there are transport inequalities, and emergency assistance is hard to find. This can affect sustainability in communities with considerable levels of economic and social vulnerability. More information is needed about accidents involving inland transport in the Amazon, to identify the threats to ships and propose strategies for accident prevention. This paper addresses the main problems that long-distance passenger ships face in the Brazilian Amazon, presenting an integrated framework towards accident prevention. First, the present situation is characterized in terms of ship description, spatial distribution, and regulations that are applicable. Next, possible causes of passenger ship accidents are discussed, including topics of concern that should be considered in the Amazon waterways. Finally, measures to help minimize passenger ship accidents are proposed, and the social relevance is discussed. It was found that accidents in the Amazon are due to a combination of human and environmental factors. Stakeholders should strengthen the technical and legal training of ship operators. The use of new technologies for navigational aid and necessary maintenance of ships is suggested. Marine accident prevention initiatives should consider local conditions, such as environmental preservation, cultural respect, and difficulties related to navigation through the complex riverine system of the Amazon region.
“…At the same time, the value is much smaller than that obtained from experimental material tests in the case that, as the author explained, did not take into account the geometric stress concentrations present in the fi nite element mesh of relatively large size. Th e study by [32] used a failure strain value of 0.2 in ship collision simulations. In contrast, another author recommended a rupture strain value of 0.35 while performing a series of experimental validation studies [33].…”
Offshore wind farms are developing well all over the world, providing green energy from renewable sources. The evaluation of possible consequences of a collision involves Finite Element computer simulations. The goal of this paper was to analyse the influence of selected strain-based failure criteria on ship damage resulting from a collision with an offshore wind turbine monopile. The case of a collision between an offshore supply vessel and a monopile-type support structure was examined. The results imply that simulation assumptions, especially the failure criteria, are very important. It was found that, using the strain failure criteria according to the minimum values required by the design rules, can lead to an underestimation of the ship damage by as much as 6 times, for the length of the hull plate, and 9 times, for the area of the ship hull opening. Instead, the adjusted formula should be used, taking into account both the FE element size and the shell thickness. The influence of the non-linear representation of the stress-strain curve was also pointed out. Moreover, a significant influence of the selected steel grade on collision damages was found.
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