Multifaceted Approach of Assessing Channel Design through Ship Simulations in Mobile Harbor, Alabama

Johnston, Morgan M.; Godsey, Elizabeth S.

doi:10.1061/(asce)ww.1943-5460.0000656

Cited by 2 publications

(4 citation statements)

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“…Navigational channel bends located near ports may have different designs [20], including radius of curvature, width, location of transition zones from the straight channel section to the widened bend, etc. It should be mentioned that in some ports, there are bends with very sharp or space-consuming specific turns within approaches and inside navigational channels, as it occurs in ports of Landskrona (Sweden), Stockholm (Sweden), Southampton (United Kingdom), Klaipeda (Lithuania), and other harbors [18,21,22].…”

Section: Literature Reviewmentioning

confidence: 99%

Navigation of Ships in Channel Bends under Special Conditions Using Sensors Systems

Paulauskas

Filina-Dawidowicz

Paulauskas

2022

Sensors

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Navigational channels and approaches to ports may have bends that constitute the specific sailing conditions for ships. A vessel’s entrance into a bend and its safe passing depends on the ship’s position accuracy, turn angle, and internal and external forces influencing the ships, as well as the captain’s or pilot’s experience. In order to assure a ship’s safe navigation under specific conditions, the possibility to measure individual ship movement parameters with the use of special sensors is needed to accurately calculate the ship’s trajectory considering the specific dimensions of ships. Moreover, hydro-meteorological and hydrological limitations for ships with different parameters and maneuverability should be evaluated in advance. The article aims to develop the methodology for calculating ships’ route trajectory in channel bends and approaches to ports under special navigational conditions. The mathematical model that may be used to calculate wind velocity limitations and distance crossed by a ship during maneuvers, depending on the ship’s maneuverability, hydro-metrological, and hydrological conditions, was elaborated. The methodology was verified by the example of a few ships entering specific channel bends. Wind velocity limitations depending on wind direction for the SUEZMAX tanker and other selected types of ships during crossing navigational channel bend near Klaipeda port were calculated. The presented theoretical basis may be used by ships’ captains and pilots who plan and perform operations of vessels’ crossing the approaches to ports and navigational channel bends, as well as by navigational channels designers who plan the channel’s parameters in difficult geographical and navigational conditions. Its application may influence the safety increase of maritime transport in limited or specific areas.

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Section: Literature Reviewmentioning

confidence: 99%

Navigation of Ships in Channel Bends under Special Conditions Using Sensors Systems

Paulauskas

Filina-Dawidowicz

Paulauskas

2022

Sensors

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“…Ship simulation is a virtual emulation tool that incorporates the handling module, navigation instruments, and visual analog module, et al It is widely utilized in channel engineering. A comprehensive range of hydrodynamic data is integrated to create a highly realistic environment [28][29][30]. Under the guidance of experienced pilots and operators, ship simulation can obtain accurate data on vessel attitudes and maneuvering capabilities [31].…”

Section: Introductionmentioning

confidence: 99%

“…By adjusting and calibrating the parameters, ship simulations can accurately simulate the performance of vessels under different conditions and reproduce a natural hydrodynamic environment, including water flow, waves, depth, and other factors [29]. As a result, ship simulators, such as Mobile Harbor [30] and Port of Long Beach [31], have been widely used in the design phase of various maritime projects to provide engineers with accurate recommendations and guidance. Within the virtual scenes of simulators, the operator can evaluate various navigation scenarios, which is highly beneficial for analyzing vessel handling characteristics [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

“…As a result, ship simulators, such as Mobile Harbor [30] and Port of Long Beach [31], have been widely used in the design phase of various maritime projects to provide engineers with accurate recommendations and guidance. Within the virtual scenes of simulators, the operator can evaluate various navigation scenarios, which is highly beneficial for analyzing vessel handling characteristics [30][31][32]. Deng et al [33] utilized a ship simulator to analyze the maneuvering characteristics of light-tonnage (50 to 3000 tons [34]) vessels in inland waterways.…”

Section: Introductionmentioning

confidence: 99%

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Navigational Safety Assessment of Ten-Thousand-Ton Vessels in Ship Tunnels by Ship Simulations

Zhang,

Cheng,

Deng

et al. 2023

Water

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In implementing ship channels in mountainous rivers with complex topography, navigation safety has become paramount for facilitating efficient tunnel operations. The security of large vessels in tunnels has recently been the focus of a considerable amount of research in the inevitable trend of vessel upsizing. This study analyzes the characteristics of unpowered coasting distance for ten-thousand-ton bulk carriers through ship simulations. The study discovered a positive correlation between coasting length and variables including tunnel width, water depth, and sectional coefficient. Moreover, it explores the maneuvering characteristics throughout the tunnel traversal process. It proposes a vessel-following model based on car-following theory and defines different types of following distances to determine the transportation capacity of the tunnel. The research findings greatly enhance tunnel navigable safety and optimize ship tunnel operations.

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Multifaceted Approach of Assessing Channel Design through Ship Simulations in Mobile Harbor, Alabama

Cited by 2 publications

References 0 publications

Navigation of Ships in Channel Bends under Special Conditions Using Sensors Systems

Navigation of Ships in Channel Bends under Special Conditions Using Sensors Systems

Navigational Safety Assessment of Ten-Thousand-Ton Vessels in Ship Tunnels by Ship Simulations

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