Structural Safety Assessment of a Floating Dock during Docking Operation

El-Maadawy, M.; Moustafa, M. M.; El-Kilani, H.S.; Tawfeek, Adel A.

doi:10.21608/pserj.2018.32094

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…In [13][14][15][16], results of strength analyses of floating docks, also under wave action, have been presented and their application in the design process has been analysed. The safety assessment of floating dock structures during docking operations by the finite element method has been carried out in [17].…”

Section: Parameter Unit Dimensionmentioning

confidence: 99%

An Innovative and Environmentally Friendly System for Moving and Stabilising a Floating Dock in Position during Docking Operations

Szelangiewicz,

Żelazny,

Sobków

2023

Energies

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The study is aimed at designing a system which ensures dock mobility (moving from the quay to the dock trench) and stabilises the dock in position during docking operations. A number of requirements and design criteria have been defined for the dock moving system, the most important of them being its capability to support docking operations at a maximum wind force of 5 °B, and environmental friendliness (zero exhaust fumes or other pollutants). As part of the research, concepts for various dock moving systems have been developed, including calculations of technical and operational parameters. Each concept has been analysed for meeting the defined requirements and design criteria. Ultimately, a system which meets all of the requirements and criteria and is completely environmentally friendly has been selected for construction. The authors discuss the entire process of creating system concepts, parameter calculations, and assessment of fulfilment of the requirements and design criteria. The principle of operation and the design of the system have been explained. The dock is powered by electricity stored in batteries and generated from renewable energy sources.

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Section: Parameter Unit Dimensionmentioning

confidence: 99%

An Innovative and Environmentally Friendly System for Moving and Stabilising a Floating Dock in Position during Docking Operations

Szelangiewicz,

Żelazny,

Sobków

2023

Energies

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“…The company of Goulburn-Murray Water (2012) sets the technical specifications for the floating jetties in Australia. El-Maadawy et al (2018) focused on the accuracy of load determination in checking the structural safety of a floating dry dock. They modeled an existing floating dock in the Port Said shipyard as a case study and developed a three-dimensional finite element model using full technical data of the floating dock.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of the flow in channels with extended boundaries

Kamal

Fattouh

Mokhtar

et al. 2023

Water Practice and Technology

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In the flow in channels with extended boundaries, the channel sides are extended covering parts of the channel flow surface symmetrically or asymmetrically. The pressure on the top surface remains approximately atmospheric, while the distributions of both velocities and discharges in the flow cross-section are severely affected. In this study, cases with different asymmetric extension ratios and aspect ratios were experimentally examined. The effect of the roughness of both extensions and the flume bed was investigated. The velocity data were sampled using Acoustic Doppler Velocimeters. The resulting velocity iso-lines showed deformations due to asymmetricity and the maximum velocity distribution was shifted towards the sides of smaller extension ratios. Low-velocity zones were formed bounded by the extensions, the side boundaries, and the flume bed where the flow resembles that of a closed conduit with maximum velocity value near the middle, but with a major difference that the iso-lines are not closed due to the absence of the fourth boundary. In cases with a bigger aspect ratio and roughness, high turbulence was noticed with severe cross-currents resulting in a low-flow velocity component. Results were demonstrated through figures and tables and the data were tested against well-known equations available in the literature.

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“…Another case involved a floating dock sinking due to inaccurate positioning of keel blocks. When the floating dock emerged from the water, several keel blocks punctured the pontoon deck, causing flooding in multiple ballast tanks, rapid loss of buoyancy, and eventual sinking [6].…”

Section: Introductionmentioning

confidence: 99%

Dynamic response of a floating dock under corrosion-induced accidents

Zahi,

Wen,

Ong

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Dynamic responses of a floating dock under corrosion-induced accidents are studied using a numerical method. The numerical model is proposed to calculate the dynamic responses of the floating dock during operations. It includes a six-degree-of-freedom (6-DOF) model, a hydrostatic force model, a hydrodynamic force model, and a hydraulic model. The effects of the corrosion-induced holes on the stability of the floating dock are investigated and the results show that the maximum pitch and roll angles are 0.18° and 0.69° respectively when there is one hole located at one tank. The maximum pitch and roll angles become 0.42° and 2.04° respectively when there are two holes located at different tanks. The results indicate that situations involving more than one corroded hole result in large roll and pitch angles, which ultimately increase the risk of the vessel capsizing. This analysis not only emphasizes potential hazards but also presents an opportunity for the maritime sector to enhance safety, operational efficiency, and environmental responsibility.

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Structural Safety Assessment of a Floating Dock during Docking Operation

Cited by 6 publications

References 1 publication

An Innovative and Environmentally Friendly System for Moving and Stabilising a Floating Dock in Position during Docking Operations

An Innovative and Environmentally Friendly System for Moving and Stabilising a Floating Dock in Position during Docking Operations

Characteristics of the flow in channels with extended boundaries

Dynamic response of a floating dock under corrosion-induced accidents

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