Ultimate strength envelope of a 10,000TEU large container ship subjected to combined loads: From compartment model to global hull girder

Wang, Qinghua; Wang, Deyu

doi:10.1016/j.oceaneng.2020.107767

Cited by 9 publications

(5 citation statements)

References 33 publications

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“…In this case, a large part of the cargo is carried on board. The growing level of trade in the world is conducive to the popularity of container ships, and currently the largest of them can transport over 20,000 TEUs [46,47].…”

Section: Methodsmentioning

confidence: 99%

“…where 𝜀 𝜏 𝑖 = 𝑑𝑒𝑓 𝜀 𝑡 𝑖 and 𝜏 𝑖 = 𝑡 𝑖 − 𝑡 1 for 1 ≤ 𝑖 ≤ 𝑛, while {𝜖 𝑖 } 1≤𝑖≤𝑛 is a sequence of independent random variables with a normal distribution 𝑁(0, 𝜎 2 ). The problem of determining the trend in the series involves the selection of a polynomial (including the determination of the degree of the polynomial) that will most accurately reflect the tendencies occurring in the observed phenomenon [44,46]. Typically, the differential method is used to determine the degree of a polynomial.…”

Section: Methodsmentioning

confidence: 99%

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Selected Polynomial Identification Techniques to Evaluate Maritime Transport Trends Around Covid-19

Borucka¹,

KOZŁOWSKI²

2023

SJSUT.ST

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The Covid-19 pandemic has drastically affected the transport sector, because of the restrictions introduced to limit the spread of the threat. They concerned primarily passenger traffic, but trade in goods also faced completely new challenges, related to increased consumption and the dynamic development of e-commerce on the one hand and restrictions related to the pandemic and sealing borders on the other. One of the most susceptible to fluctuations in international trade is the maritime economy, which has been analysed in this article. It was checked how the global threat affected sea traffic in terms of gross weight of goods handled in main ports. The aim of the study was to characterize the impact of the pandemic on sea transport depending on the type of ship and to evaluate the current state of sea transport in the context of the level shaped by forecasts based on observations from before the coronavirus pandemic. The authors' assumption was to check whether the rail transport market has already reached the level it could reach in the absence of the virus threat. The use of a polynomial function was proposed for the study. Time series containing observations up to the outbreak of the pandemic and forecasts based on them, as well as time series containing additional observations from the pandemic period were analysed. The study results obtained allowed to conclude how the global crisis caused by the Covid-19 pandemic affected the cargo traffic in the sea transport, expressed by the mass of goods transshipped in major ports, depending on the individual types of ships.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Selected Polynomial Identification Techniques to Evaluate Maritime Transport Trends Around Covid-19

Borucka¹,

KOZŁOWSKI²

2023

SJSUT.ST

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“…When a containership with a large opening encounters a large oblique wave, the ship's structure will suffer the combined effect of a large bending moment and a large torsional moment induced by the pressures of the oblique waves. According to previous research [1,2], the ultimate strength of the ship's structure is decreased significantly by the combined effect of a bending moment and a torsional moment. Many ship accidents are caused by encountering large oblique waves.…”

Section: Introduction 1background Of This Papermentioning

confidence: 92%

Research on Structural Collapse of a Containership under Combined Bending–Torsion by Oblique Waves

Liu,

Zou,

Zhang

et al. 2024

JMSE

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Large waves cause a great number of collapsed-ship accidents, resulting in the loss of many lives and properties. It has been found that most of these collapses are caused by encountering oblique waves. As a result, the ship structure experiences a complex collapse under combined bending and torsion. This paper utilizes a numerical hydroelasto-plastic approach, coupling CFD (Computational Fluid Dynamics) with the nonlinear FEM (Finite-Element Method), to study the structural collapse of a containership in oblique waves. First, a 4600 TEU containership was selected to study its collapse mechanism under oblique waves. Second, a hydroelasto-plastic numerical coupling of CFD and nonlinear FEM is used to co-calculate the wave loads and structural collapse of containership. The hydrodynamic model is constructed and used to solve wave loads in the CFD solver, and a nonlinear FEM model of containership with finer meshes is also modeled to solve the structural collapses, including plasticity and buckling. Third, several oblique-wave cases involving heading angles of 120°, 135°, 150°, and 180° are determined and calculated. Typical cases are discussed for time-domain stress histories and collapsed courses. Finally, the influence of oblique-wave parameters on structural collapse is discussed, and the collapse mechanism of containerships under the action of oblique waves is obtained, which provides a new understanding of ship structure design.

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“…They identified the most critical wavelength at 120 • relative to the ship's course. The fundamental principle of load interaction, crucial in achieving maximum strength, was employed by Wang and Wang [13] in their research, which extended to a 10,000 TEU container ship, starting from the compartment model and expanding to the global hull girder. Given the global loads endured by container ships, specific attention is directed to a localized structure termed the upper wing torsional box, situated on both the port and starboard sides at the main deck's height.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Analysis of Structural Alternatives and Local Opening for a 2000 TEU Green Methanol-Powered Container Vessel

Silva-Campillo,

Pérez-Arribas

2024

Applied Sciences

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In the context of global trade and environmental concerns, this research focuses on examining the influence of the principal dimensions of a container feeder vessel whose propulsion has been modified to operate with green methanol. Methanol emerges as a sustainable marine fuel, reducing emissions and dependence on fossil fuels. The study comprehensively examines the structural challenges posed by container ships, with a particular focus on torsional stresses and hydroelasticity effects. A significant novelty of this study is the inclusion of a comparative structural analysis evaluating how changes in the vessel’s main dimensions impact its structural response. This analysis sheds some light on crucial insights into the effects of structural modifications required for accommodating these changes, ensuring the structural strength of these vessels. The research also underscores the impact of permanent and transient springing and whipping phenomena on fatigue damage. The study’s significance lies in its role in the ongoing transition to sustainable maritime transportation, as it not only examines structural challenges but also provides solutions for achieving an optimal structural configuration in this new era of environmental responsibility.

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Ultimate strength envelope of a 10,000TEU large container ship subjected to combined loads: From compartment model to global hull girder

Cited by 9 publications

References 33 publications

Selected Polynomial Identification Techniques to Evaluate Maritime Transport Trends Around Covid-19

Selected Polynomial Identification Techniques to Evaluate Maritime Transport Trends Around Covid-19

Research on Structural Collapse of a Containership under Combined Bending–Torsion by Oblique Waves

A Comprehensive Analysis of Structural Alternatives and Local Opening for a 2000 TEU Green Methanol-Powered Container Vessel

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