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Articoli di riviste sul tema "Stability of ships"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 26 luglio 2024

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1

Woo, Donghan, Hun Choe, and Nam-Kyun Im. "Analysis of the Relationship between GM and IMO Intact Stability Parameters to Propose Simple Evaluation Methodology." Journal of Marine Science and Engineering 9, no. 7 (July 2, 2021): 735. http://dx.doi.org/10.3390/jmse9070735.

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Securing a ship’s safe stability is essential. Thus, monitoring the stability parameters of the IMO requirements is required to provide an alert about the risk of the safety of ships’ stability to the captain, officers, and the crew of a ship. However, calculating all ships’ intact stability parameters is complex without ship loading software or equipment. To evaluate ships’ intact stability parameters, a convenient methodology to simply calculate them is necessary as a supplementary method for ships in the absence of loading software or equipment. In the present study, the Simple Evaluation M

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2

Han, J., and M. Murai. "A parametric study on the initial transverse stability of suspension ships." IOP Conference Series: Materials Science and Engineering 1294, no. 1 (December 1, 2023): 012021. http://dx.doi.org/10.1088/1757-899x/1294/1/012021.

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Abstract Suspension ships are a novel type of ships that utilize a suspension system as an integral part of their structure. One critical aspect of a suspension ship is its stability characteristics. The parameters that affect the initial transverse stability of these ships include the ship’s mass ratio, loaded height of suspension, placement location height of suspension, and beam. It is found that designing a suspension ship in monohull configuration is more difficult than in a catamaran configuration. Special attention is required when the static mass ratio is below 2 for both monohulls and

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3

Zou, Yin Cai, and Wei Gang Zheng. "The Structure Design of Parent-Subsidiary Wind Sailing Boat and the Matching Research of Power Plant." Advanced Materials Research 912-914 (April 2014): 1032–36. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.1032.

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Wind sailing boat fades out maritime transport industry gradually, because of its existence decreases the ship stability, and threatens mariners and ships security vastly. Project group has worked out high stability and security ship through researching literature and emulation-technique. Through the design of a parent ship and a sub-shipa set of wind sailing system and a water supply and drainage system, and the modeling calculation and analysis about the thrust of the fixed pitch propeller matching with the sailing, we can conclude that the added sub-ships can enhance ships stability in cons

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4

Lee, Dongkeun, Chaeog Lim, Sang-jin Oh, Minjoon Kim, Jun Soo Park, and Sung-chul Shin. "Predictive Model for Hydrostatic Curves of Chine-Type Small Ships Based on Deep Learning." Journal of Marine Science and Engineering 12, no. 1 (January 18, 2024): 180. http://dx.doi.org/10.3390/jmse12010180.

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Capsizing accidents are regarded as marine accidents with a high rate of casualties per accident. Approximately 89% of all such accidents involve small ships (vessels with gross tonnage of less than 10 tons). Stability calculations are critical for assessing the risk of capsizing incidents and evaluating a ship’s seaworthiness. Despite the high frequency of capsizing accidents involving them, small ships are generally exempt from adhering to stability regulations, thus remaining systemically exposed to the risk of capsizing. Moreover, the absence of essential design documents complicates direc

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5

Woo, Donghan, and Nam-Kyun Im. "A Methodology for Simply Evaluating the Safety of a Passenger Ship Stability Using the Index for the Intact Stability Appraisal Module." Sensors 22, no. 5 (March 2, 2022): 1938. http://dx.doi.org/10.3390/s22051938.

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To evaluate the safety of passenger ships’ stability, ten stability parameters should be calculated. However, since the process for calculating all stability parameters is complex without a ship loading program, a convenient methodology to simply calculate them and evaluate the safety condition of a passenger ship is required to alert the hazard to a captain, officer, and crew. The Index for Passenger Ship Intact Stability Appraisal Module (IPSAM) is proposed herein. According to the value of a passenger ship’s metacentric height (GM) which could be calculated by the ship’s roll period measure

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6

Siagian, Josua, I. Nengah Putra Apriyanto, and Kaharuddin Djenod. "STUDI LITERATUR: PERFORMA MODEL KAPAL BENTUK MONOHULL, KATAMARAN DAN TRIMARAN." Citizen : Jurnal Ilmiah Multidisiplin Indonesia 2, no. 3 (July 15, 2022): 411–18. http://dx.doi.org/10.53866/jimi.v2i3.102.

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Along development of technology from time to time, makes the shipping sector have experienced development. This made the Indonesian geverment place the maritime sector into a priority program in national development. The development of ships occur from various scopes, this things takes the development of ships in terms of the number of hulls such as single hull (monohull), double hull (catamaran), and with three hulls (trimaran). This research uses a literature method that will analyze the results of previous research related to the ship’s performance. The purpose of this research to determine

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7

Ruponen, Pekka, and Apostolos Papanikolaou. "Damage Stability of Ships." Journal of Marine Science and Engineering 11, no. 6 (June 19, 2023): 1250. http://dx.doi.org/10.3390/jmse11061250.

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8

Krata, Przemysław, and Jacek Jachowski. "Dynamic Heeling Moment Due to Liquid Sloshing in a Rectangular Tank of Different Dimensions and Elevation in Ship’S Hull / Dynamiczny Moment Przechylający Od Swobodnych Powierzchni Cieczy W Prostokątnym Zbiorniku Okrętowym O Różnych Wymiarach I Lokalizacji Pionowej." Journal of KONBiN 21, no. 1 (December 1, 2012): 51–62. http://dx.doi.org/10.2478/jok-2013-0005.

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Abstract Liquid sloshing phenomenon taking place in partly filled ships’ tanks directly affects the stability of a vessel and her safety on seaway, however, only static calculations are carried out onboard ships nowadays. The presented investigation is focused on dynamic approach towards liquid motion onboard ships. The set of numerical simulations of liquid sloshing taking place in moving tanks is carried out in terms of tank’s dimensions and its elevation within ship’s hull. A number of characteristics of the heeling moment due to liquid sloshing is obtained and analyzed.

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9

Bačkalov, I., S. Rudaković, and M. Cvijović. "Intact Stability of Historic Passenger Ships in Light of the Second Generation Intact Stability Criteria." International Journal of Maritime Engineering 163, A1 (April 7, 2021): 119–30. http://dx.doi.org/10.5750/ijme.v163ia1.10.

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The paper examines the intact stability of historic passenger ships from the point of view of the contemporary notion of the intact stability, i.e. the Second Generation Intact Stability Criteria (SGISC) framework. An intact stability assessment using the Vulnerability Level 2 calculation procedures of SGISC for the dead ship condition was performed on four ocean liners: RMS Titanic, RMS Queen Mary, SS United States and SS Michelangelo, and two cruise ships: MS Song of America and MS Costa Concordia. In addition, the intact stability of the selected ships was appraised using the present-day ma

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10

Vidhaj, Miranda, and Kristofor Lapa. "Some Considerations Regarding the Safety of Touristic Vessels Operating in the Albanian Bays." Časopis Pomorskog fakulteta Kotor - Journal of Maritime Sciences 23, no. 2 (November 19, 2022): 87–96. http://dx.doi.org/10.56080/jms221107.

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Ship’s stability is one among the foremost important and complicated concept regarding ship and navigation’s safety and it's governed by maritime law as well as maritime codes. In Albanian bays, there has been considerable maritime tourism development in recent years, which has consequently brought about an increasing demand for passenger ships offering mainly one day cruises. The ships intended for this type of service are of different typologies: tourist vessels built especially for this destination, but there are many vessels which have changed the destination mainly from fishing vessel to

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11

Belenky, Vadim L. "Seventh International Conference on the Stability of Ships and Ocean Vehicles (STAB’ 2000)—A Review." Marine Technology and SNAME News 38, no. 01 (January 1, 2001): 1–8. http://dx.doi.org/10.5957/mt1.2001.38.1.1.

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A brief review is given of the papers presented at the 7th International Conference on the Stability of Ships and Ocean Vehicles, held 7–12 February 2000 in Launceston, Australia. The review covers the following stability-related subjects: human factors, stability standards, operational aspects, influence of water on deck, damage stability, stability in following and quartering seas, stability of high-speed craft and sailing yachts, nonlinear dynamics of ships, test procedures, roll stabilization and cargo shift, waves and the environment, rolling in beam seas and stability of particular types

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12

Wright, Charles L. "STABILITY OF SHIPS AFTER EXTENSIVE FLOODING." Journal of the American Society for Naval Engineers 59, no. 4 (March 18, 2009): 442–70. http://dx.doi.org/10.1111/j.1559-3584.1947.tb05818.x.

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13

Gulyaev, Ilya A. Gulyaev, та Evgeniy P. Ronnov. "Сombined ships stability analysis at the stage of design study". Russian Journal of Water Transport, № 66 (23 березня 2021): 29–35. http://dx.doi.org/10.37890/jwt.vi66.158.

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. A method of stability analysis for combined ship (oil carrier/platform ship type) at the stage of design study is presented. It should be noted that not all of ship’s main seaworthiness and operational characteristics are the result of a simple addition of the characteristics of an oil carrier and a platform ship. Their mutual influence takes place, which should be taken into account when analysing the stability in the multivariant optimization problems of internal and external design of such ships. This leads to the requirement to adjust the known methods of stability analysis at the initia

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14

Dubrovsky, Victor A. "SHIPS WITH SMALL WATER-PLANE AREA: THE MAIN INFORMATION." International Journal of Research -GRANTHAALAYAH 9, no. 6 (June 30, 2021): 113–24. http://dx.doi.org/10.29121/granthaalayah.v9.i6.2021.3990.

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Ships with small water-plane area (below “SWA ships”) have very special shape of hulls. It is the reason of characteristic specificity of such ships. SWA ships usually are multi-hull ones. And as all multi-hulls, SWA ships differ from the comparable mono-hulls by bigger deck area relative the displacement and by simple ensuring of stability. There are some architectural types of SWA ships. Their differences are shown by the article. Relative area of deck and initial transverse stability of SWA ships are compared. Statistical data on performance: twin-hull SWA versus catamarans. Common specific

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15

Szymoński, Marek. "Stability Control on Ro-Ro Passenger Ships as the Main Factor of Ship’s Safety." European Journal of Theoretical and Applied Sciences 1, no. 5 (September 1, 2023): 1033–41. http://dx.doi.org/10.59324/ejtas.2023.1(5).90.

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On Ro-Ro passenger ship the wide spectrum of captain’s responsibilities should be taken into consideration. One of the important responsibilities is the ship’s stability examination. The other measures as the ship’s condition, wind on ship with large windage area, rolling characteristics, severe seas etc., are important for ensuring the safe operating of ship, to minimize the risk to the ship, to the personnel and passengers on board, and to the environment. The international convention for the Safety of Life At Sea – (SOLAS 90) make into fact the continual development of safety standards in t

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16

Pérez-Canosa, José M., José A. Orosa, María Isabel Lamas Galdo, and Juan José Cartelle Barros. "A New Theoretical Dynamic Analysis of Ship Rolling Motion Considering Navigational Parameters, Loading Conditions and Sea State Conditions." Journal of Marine Science and Engineering 10, no. 11 (November 3, 2022): 1646. http://dx.doi.org/10.3390/jmse10111646.

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Despite the IMO’s efforts and the large quantity of research carried out over the years concerning the sudden loss of stability in fishing vessels, and even the damage done to merchant fleets due to cargo shifting, accidents with very relevant consequences continue to occur. This paper can be considered as a continuation of the recent research of authors which was carried out with ships in static conditions, with pure beam seas and without resistance. The aim of the present research is to provide a reference for ships’ operators to improve the ship’s behavior and seakeeping, to alter the ship’

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17

Hetharia, Wolter R. "Preliminary Study on Stability Parameters of Semi-Displacement Ships." Applied Mechanics and Materials 874 (January 2018): 105–13. http://dx.doi.org/10.4028/www.scientific.net/amm.874.105.

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Semi-displacement passenger ships operate at the speed range of 19 to 23 knots or Froude number Fn of 0.50 to 0.75. Those ships need higher engine power to maintain their speeds. The efforts should be made to minimize their higher engine powers. Most experts worked to minimize the engine power for most merchant ships. In their works, the initial metacentric (GMO) at departure condition was taken as constraint to represent stability parameters. However, this is not a general case for semi-displacement passenger ships. In this study, a parent semi-displacement passenger was designed and modified

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18

Davydov, V. S., and I. O. Liubarets. "WAYS TO IMPROVE THE STEERING OF LARGE CONTAINER SHIPS IN DIFFICULT NAVIGATIONAL AND HYDROMETEOROLOGICAL CONDITIONS." Shipping & Navigation 34, no. 1 (May 5, 2023): 52–58. http://dx.doi.org/10.31653/2306-5761.34.2023.52-58.

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The article examines the challenges of operating large container ships in difficult navigational and hydrometeorological conditions. The latest research and publications on the peculiarities of such vessels, such as their large windage area, which depends on their size and carrying capacity are reviewed. Some cases of maneuvering large container ships and the reasons why they become almost uncontrolled at low speeds even with little wind are analysed. The article also discusses the features of the engines and propulsion of these ships, which limit their minimum speed and affect their controlla

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19

Rajasekhar, D., and N. Manoharan. "An Analysis of Longitudinal Stability of Ships." Medico-Legal Update 18, no. 1 (2018): 496. http://dx.doi.org/10.5958/0974-1283.2018.00105.6.

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20

King, Tobias, Clayton Van Welter, and Tor E. Svensen. "Stability barrier management for large passenger ships." Ocean Engineering 125 (October 2016): 342–48. http://dx.doi.org/10.1016/j.oceaneng.2016.06.049.

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21

An, Zuxu, Huidong Jia, Guogang Yang, Shian Li, and Qiuwan Shen. "Modelling and Simulation Analysis of the Fuel Cell Hybrid Propulsion System." Journal of Physics: Conference Series 2661, no. 1 (December 1, 2023): 012030. http://dx.doi.org/10.1088/1742-6596/2661/1/012030.

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Abstract Under the pressure of global energy shortage and severe environmental pollution, using new energy in ships will become the mainstream direction of future development. Compared to traditional single fossil fuels, the hybrid system composed of clean energy improves overall cleanliness. Hybrid power design has also attracted widespread attention in academia and industry. Therefore, this article introduces a hybrid propulsion system for ships. It combines Proton-exchange membrane cell (PEMFC) and cell. A simulation model for the propulsion system of hybrid electric ships was established i

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22

Diasamidze, M., and A. Shotadze. "Ballast water management and their system processing." Fundamental and applied researches in practice of leading scientific schools 31, no. 1 (February 28, 2019): 58–60. http://dx.doi.org/10.33531/farplss.2019.1.11.

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Ballast water provides stability and maneuverability to a ship. Large ships can carry millions of gallons of ballast water. Ballast water discharged by ships can have a negative impact on the marine environment. There are thousands of marine species that may be carried in ships’ ballast water; In order to reduce the risk of new introductions of exotic species, the UN International Maritime Organization (IMO) has adopted the International Convention for the Control and Management of Ship’s Ballast Water and Sediments in 2004. This Convention aims ‘to continue the development of safer and more e

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23

Szlapczynski, Rafal, Przemyslaw Krata, and Joanna Szlapczynska. "A Ship Domain-Based Method of Determining Action Distances for Evasive Manoeuvres in Stand-On Situations." Journal of Advanced Transportation 2018 (October 10, 2018): 1–19. http://dx.doi.org/10.1155/2018/3984962.

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A ship encounter can be considered safe if neither of ships’ domains (defined areas around ships) is intruded by other ships. Published research on this includes optimising collision avoidance manoeuvres fulfilling domain-based safety conditions. However, until recently there was no method, using ship’s domain to determine exact moment when a particular collision avoidance manoeuvre can still be successfully performed. The authors have already proposed such method for give-way encounters. In the paper, documenting continuation of the research, another kind of scenarios is considered. This pape

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24

Malisan, Johny. "Tinjauan Kelaiklautan Kapal Tradisional Yang Beroperasi Di Wilayah Jakarta • Kepulauan Seribu." Warta Penelitian Perhubungan 24, no. 1 (May 9, 2019): 100. http://dx.doi.org/10.25104/warlit.v24i1.987.

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ABSmACTNumber of wooden-ships (people called them as kapal ojek) operated in 2011 are 34 vessels or equal to 1,199 gross tonnage and total capacity of 1,833 passengers. Since many accidents of ships occurs and to be public concern, the author is interested to make research in order to evaluate sea worthiness of their stability and users' opinion. 17tere are 5 aspect of opinions to be collected among others safety equipments, timeliness and ships availability, security and comfort, crews competencies, and tariff. Users' opinion is analyzed by using the Importance performance Index and Customer

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25

Xiao, Ping, and Haiyan Wang. "Operation Optimization of the Sea Container Fleet Based on the Double-Level Planning Model." Applied Sciences 14, no. 4 (February 17, 2024): 1624. http://dx.doi.org/10.3390/app14041624.

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In response to the optimal operation of ocean container ships, this paper presents a two-level planning model that takes into account carbon tax policies. This model translates the CO2 emissions of ships into carbon tax costs and aims to minimize the overall operation costs of the ships. In top-level planning, the model considers factors such as speed, cargo load, and energy consumption to establish an objective function and optimization strategy. In bottom-level planning, the model involves ship stability and imposes corresponding constraints. By integrating the two levels of planning, a ship

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Leendertse, J. J. "USE OF MODEL EXPERIMENTS IN SOLVING QUESTIONS OF NAVIGATION WITH SPECIAL REFERENCE TO THE ENTRANCE OF ST. ANNA BAY, CURACAO, NETHERLANDS ANTILLES." Coastal Engineering Proceedings 1, no. 6 (January 29, 2011): 39. http://dx.doi.org/10.9753/icce.v6.39.

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For a great many years model experiments with ships have been carried out in towing tanks in order to ascertain the reactive movements of ships under different wave and current conditions. Such experiments do not only pertain to the stability of the ships but also to forces brought to bear on the hulls of the ships. A recent development in the coastal engineering field includes the use of ship models in questions of navigation.

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Yu, Wanneng, Suwen Li, Yonghuai Zhu, and Cheng-Fu Yang. "Management and Distribution Strategies for Dynamic Power in a Ship’s Micro-Grid System Based on Photovoltaic Cell, Diesel Generator, and Lithium Battery." Energies 12, no. 23 (November 27, 2019): 4505. http://dx.doi.org/10.3390/en12234505.

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Combining new energy technology with electric propulsion technology is an effective way to decrease the pollution of water resources caused by cruise ships. This study examines the stable parallel operation of a ship’s micro-grid system through a dynamic power management strategy involving a step change in load. With cruise ships in mind, we construct a micro-grid system consisting of photovoltaics (PV), a diesel generator (DG), and a lithium battery and establish a corresponding simulation model. We then analyze the system’s operating characteristics under different working conditions and pre

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De Sousa Bastos, Paula C., and Marta C. Tapia Reyes. "Stability of Ships with a Single Stranding Point." Ciencia y tecnología de buques 7, no. 14 (January 26, 2014): 15. http://dx.doi.org/10.25043/19098642.91.

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During rescue operations of stranded vessels, it is essential to make immediate and reliable decisions to optimize the successful salvage potential and minimize risks of environmental damages and cost impacts. Pursuant to this scenario, the need arises for a numerical tool, which can more accurately forecast the stability conditions experienced by a vessel after running aground and help in the refloating operations of the unit. This study seeks to develop an adequate calculus systematization, which provides analytical capabilities for operational situations in case of stranding, thereby, suppo

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Atua, K., and B. M. Ayyub. "Reliability Analysis of Transverse Stability of Surface Ships." Naval Engineers Journal 109, no. 3 (May 1997): 129–40. http://dx.doi.org/10.1111/j.1559-3584.1997.tb03175.x.

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GÖKSU, Burak, and Kubilay BAYRAMOĞLU. "Effect of Electric Vehicle Transportation and Carbon Capture System on Concept Ro-Ro ship Stability and EEDI." Marine Science and Technology Bulletin 12, no. 3 (September 28, 2023): 267–81. http://dx.doi.org/10.33714/masteb.1313638.

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In terms of their service life, ships may operate for decades. Hence, it depicts the rapid development of machinery and equipment due to the substantial advancement of technology. Indeed, the ship’s systems must be updated to accommodate these new instruments. However, the importance of investigating the static-dynamic equilibrium and speed-power demand is a matter of concern as the ships are in motion on the water. There are currently limitations on carbon emissions from ships. To comply with these regulations, either the use of fuels that produce fewer carbon emissions or the use of after-tr

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Vassalos, Dracos, M. P. Mujeeb-Ahmed, Donald Paterson, Francesco Mauro, and Fabien Conti. "Probabilistic Damage Stability for Passenger Ships—The p-Factor Illusion and Reality." Journal of Marine Science and Engineering 10, no. 3 (March 1, 2022): 348. http://dx.doi.org/10.3390/jmse10030348.

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The paper complements an earlier publication by the authors addressing the probability of survival in the IMO framework for damage stability assessment, the s-factor. The focus here is on the probability of occurrence of a certain damage scenario (breach), conditional on its dimensions and location (centre and port or starboard side), the p-factor. Pertinent assumptions and limitations are explained, following its evolution for specific application to passenger ships. Attempts to provide analytical descriptions of the damage breach distributions as tetrahedra shapes positioned along the ship l

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Lin, Zhuang, Ya Xiong Zheng, Jing Zou, Han Bing Sun, and Deng Hui Xu. "A Static-Stability Analysis Method for Ships Based on the Second-Development of Solid Edge." Advanced Materials Research 712-715 (June 2013): 1162–66. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1162.

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A static-stability calculation method for ships which use the second-development of Solid Edge is presented in this paper. The second-development of Solid Edge applied Visual Basic to divide the waterplane and measure the parameters concerned static-stability calculation such as the volume and center of the underwater model. Furturemore, it makes the statics-stability calculation be convenient that the paragraph of static-stability is calculated on the parameters and the dismiss angle is returned. According to the comparison of the experiments and the theory, including different forms of super

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Kobyliński, Lech. "New Generation Stability Norms – How to Approach the Task." Polish Maritime Research 25, s1 (May 1, 2018): 56–62. http://dx.doi.org/10.2478/pomr-2018-0023.

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Abstract International stability norms included in the Code of Intact Stability 2008 adopted by IMO on 4 December 2008 constitutes the latest set of international requirements on intact stability of ships. However the requirements included in the Code, part of them compulsory (Included in the Part A of the Code), other only recommended (included in the Part B of the Code) are considered as not totally sufficient to assure safety of ships. Because of that, IMO decided that there would be the necessity to develop so called new generation stability criteria covering certain identified hazards, su

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Lee, Hee-Jin, and Deuk-Jin Park. "Analysis of Thermal Characteristics of MEMS Sensors for Measuring the Rolling Period of Maritime Autonomous Surface Ships." Journal of Marine Science and Engineering 10, no. 7 (June 23, 2022): 859. http://dx.doi.org/10.3390/jmse10070859.

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Recently, with the emergence of maritime autonomous surface ships (MASS), ensuring seaworthiness has increased with the operation of MASS. Ship stability is important for safety, and technical methods for controlling a ship’s motion are required to evaluate the stability. A ship’s rolling period is estimated using microelectromechanical systems (MEMS) sensors to measure the ship’s metacentric height. However, weather changes (e.g., temperature) are drastic due to various marine environments in the sea. Hence, it is necessary to analyze MEMS sensors’ thermal characteristics for applying them to

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Tjahjono, Agus. "Ballast Pump Performance Optimization Strategy for Smooth Ship Operations in MV. DK 03." RSF Conference Series: Engineering and Technology 3, no. 1 (October 5, 2023): 345–51. http://dx.doi.org/10.31098/cset.v3i1.770.

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Suppose the operation of the ballast pump is not optimal. In that case, it will disrupt the ship's stability and be very detrimental to many parties, such as endangering the ship and crew, resulting in fatal losses, namely the ship's sinking. The research method used is qualitative to analyze strategies for optimizing ballast pump performance for smooth ship operations on MV.DK 03. Researchers used the SWOT method. Research objectives: a) to analyze ballast pump maintenance in ship operations, b) to analyze the impact of non-optimal ballast pumps. The results of the research concluded that the

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Isnardi, Isabelle, Renaud Lesourne, Pierre Bruhns, Wolf H. Fridman, John C. Cambier та Marc Daëron. "Two Distinct Tyrosine-based Motifs Enable the Inhibitory Receptor FcγRIIB to Cooperatively Recruit the Inositol Phosphatases SHIP1/2 and the Adapters Grb2/Grap". Journal of Biological Chemistry 279, № 50 (28 вересня 2004): 51931–38. http://dx.doi.org/10.1074/jbc.m410261200.

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FcγRIIB are low-affinity receptors for IgG that contain an immunoreceptor tyrosine-based inhibition motif (ITIM) and inhibit immunoreceptor tyrosine-based activation motif (ITAM)-dependent cell activation. When coaggregated with ITAM-bearing receptors, FcγRIIB become tyrosyl-phosphorylated and recruit the Src homology 2 (SH2) domain-containing inositol 5′-phosphatases SHIP1 and SHIP2, which mediate inhibition. The FcγRIIB ITIM was proposed to be necessary and sufficient for recruiting SHIP1/2. We show here that a second tyrosine-containing motif in the intracytoplasmic domain of FcγRIIB is req

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Yilmaz, Hüseyin, and Abdi Kükner. "An Approximate Method for Intact Stability of Fishing Vessels." Marine Technology and SNAME News 36, no. 03 (July 1, 1999): 171–74. http://dx.doi.org/10.5957/mt1.1999.36.3.171.

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It is well known that stability is the most important safety requirement for ships. One should have some information on ship stability at the preliminary design stage in order to reduce risk. Initial stability of ships is an important criterion and can be closely evaluated in terms of form parameters and vertical center of gravity. In this study, using some sample ship data, approximate formulations are derived by means of regression analysis for the calculations expressed in terms of ship preliminary design parameters that can easily provide approximate GM calculations. Thus designers can be

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38

Woo, Namsub, Sangmok Han, Youngju Kim, Sunchul Huh, and Hyunji Kim. "Study on the structural stability evaluation of umbilical winch for ROV LARS." Engineering Computations 35, no. 1 (March 5, 2018): 202–10. http://dx.doi.org/10.1108/ec-03-2017-0107.

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Purpose The purpose of this study is structural stability evaluation of umbilical winch. In accordance with the recent trend for developing natural resources, high-technology equipment on exploration ships is becoming more technologically advanced. One such piece of high-technology equipment is the umbilical winch. In this study, the umbilical winch is divided into two parts (drum and winch), where each is respectively designed with three dimensional models using CATIA, and dynamic simulation and structural analysis are performed using ANSYS. Design/methodology/approach In this paper, the winc

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39

Huang, Junqiang. "Stability Calculation of Green Energy Unmanned Small Ship." Journal of Engineering System 2, no. 1 (March 2024): 59–63. http://dx.doi.org/10.62517/jes.202402111.

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Global warming is very serious, and human beings should study green energy ships to prevent pollution. First, people should do research about small ships with green energy power, such as battery and solar panels and wind power. This paper will carry out science research under limit fund, and design a small unmanned green energy ship with battery and solar panels and wind power, and calculate the stability of the ship. The ship will be designed as a tumbler, and be ensured to be safe. After calculation, the center of gravity of the ship is always under the metacenter. When the ship rolls horizo

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Boccadamo, Guido, and Gennaro Rosano. "Excessive Acceleration Criterion: Application to Naval Ships." Journal of Marine Science and Engineering 7, no. 12 (November 27, 2019): 431. http://dx.doi.org/10.3390/jmse7120431.

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In this paper, the application of the excessive acceleration (EA) criterion, one of five intact stability failure modes, within the second generation intact stability criteria (SGISC) framework, is shown for a set of naval vessels. First and second level vulnerability assessment of the criterion is applied to parent hulls D1 and D5 of D-Systematic Series, the US Office of Naval Research (ONR) Topside Series model, and the European multi-purpose frigate FREMM. All of which are semi-displacement, transom stern, and round bilge hull forms. Relatively low ship roll periods and great variations of

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41

Lin, Bowen, Mao Zheng, Bing Han, Xiumin Chu, Mingyang Zhang, Haiming Zhou, Shigan Ding, Hao Wu, and Kehao Zhang. "PSO-Based Predictive PID-Backstepping Controller Design for the Course-Keeping of Ships." Journal of Marine Science and Engineering 12, no. 2 (January 23, 2024): 202. http://dx.doi.org/10.3390/jmse12020202.

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Ship course-keeping control is of great significance to both navigation efficiency and safety. Nevertheless, the complex navigational conditions, unknown time-varying environmental disturbances, and complex dynamic characteristics of ships pose great difficulties for ship course-keeping. Thus, a PSO-based predictive PID-backstepping (P-PB) controller is proposed in this paper to realize the efficient and rapid course-keeping of ships. The proposed controller takes the ship’s target course, current course, yawing speed, as well as predictive motion parameters into consideration. In the design o

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42

Toan, Ninh Cong, and Ngo Van He. "EFFECT OF HULL AND ACCOMMODATION SHAPE ON AERODYNAMIC PERFORMANCES OF A SMALL SHIP." Tạp chí Khoa học và Công nghệ biển 18, no. 4 (March 15, 2019): 413–21. http://dx.doi.org/10.15625/1859-3097/18/4/13292.

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In marine transportation, aerodynamic performance is important for the ships, especially for the small passenger fast ships. It has affected the service speed, air resistance acting on hull, power energy as well as roll, pitch, yaw and stability of the ships. Moreover, the aerodynamic performance also directly affects the passengers, captains or employments who work on the ships. For a bad aerodynamic performance hull shape, it may make an accident in marine transportation. In this paper, the authors present a study on effect of hull shape on aerodynamic performance of a small passenger fast s

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Hu, Lifen, Chen Yao, Wubin Li, Xiangyang Wang, and Zhongyu Sun. "Capsizing Performance of Dead Ship Stability for Damaged Ships." Marine Technology Society Journal 55, no. 1 (January 1, 2021): 115–26. http://dx.doi.org/10.4031/mtsj.55.1.10.

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AbstractThis study proposes a method for combining capsizing probability and flooding process to investigate the time-domain dead ship stability of a damaged ship. It focuses on a nonlinear righting lever GZ curve solution in the following aspects: one aspect subjects the influence of damaged tanks on a hull shape to the wind and wave, and the other aspect is based on a real-time calculation of the GZ curve. According to 1‐degree-of-freedom rolling equation, the damaged capsizing probability model is established through fourth-order Runge-Kutta algorithm and Monte Carlo simulation. Also, the m

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44

KORVIN-KROUKOVSKY, B. V. "DIRECTIONAL STABILITY AND STEERING OF SHIPS IN OBLIQUE WAVES*." Journal of the American Society for Naval Engineers 73, no. 3 (March 18, 2009): 483–87. http://dx.doi.org/10.1111/j.1559-3584.1961.tb02613.x.

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45

Brown, A. J., and Lt F. Deybach. "Towards A Rational Intact Stability Criteria For Naval Ships." Naval Engineers Journal 110, no. 1 (January 1998): 65–77. http://dx.doi.org/10.1111/j.1559-3584.1998.tb02386.x.

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46

Francescutto, Alberto. "Intact stability criteria of ships – Past, present and future." Ocean Engineering 120 (July 2016): 312–17. http://dx.doi.org/10.1016/j.oceaneng.2016.02.030.

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47

Hasanudin, Achmad Zubaydi, and Wasis Dwi Aryawan. "Investigating the Capsizing Incident of the RoPax OCD Vessel Utilizing the RAO Approach in Wave Conditions." IOP Conference Series: Earth and Environmental Science 1198, no. 1 (June 1, 2023): 012009. http://dx.doi.org/10.1088/1755-1315/1198/1/012009.

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Abstract (sommario):

Abstract RoPax is the most famous ship in the world that simultaneously carries multipurpose such as passengers, cargo, and vehicles in bulk. Cargo ships experience the most accidents, but RoPax ships contribute the most casualties worldwide. RoPax OCD is practical and economical for the short-medium route but vulnerable in intact dynamic stability that causes capsize. The paper analyses the data of RoPax Opened Car Deck (OCD) accidents in range time (2003-2021) in Indonesia water that is reviewed by the Response Amplitude Operator (RAO). Internal ship data is obtained from Indonesia’s Nationa

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48

Tagg, Robert, and Cantekin Tuzcu. "A Performance-Based Assessment of the Survival of Damaged Ships: Final Outcome of the EU Research Project HARDER." Marine Technology and SNAME News 40, no. 04 (October 1, 2003): 288–95. http://dx.doi.org/10.5957/mt1.2003.40.4.288.

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The paper presents the results of the EU Research Project HARDER with regard to the development of generalized formulations to predict the probability of survival of a damaged ship in a seaway. The methodology follows the procedures used to develop the survivability functions for the probabilistic damage stability regulations for passenger ships developed in the 1960s but makes use of an extensive series of a new model test carried out both as part of the HARDER Project and as part of independent external model tests. Simplified formulations based on static calculations have been proposed and

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49

Nabawi, Rahmat Azis, Syahril Syahril, and Salmat Salmat. "Stability Study of Flat Hull Ship for Fishing Tourism." Teknomekanik 3, no. 2 (December 10, 2020): 80–85. http://dx.doi.org/10.24036/teknomekanik.v3i2.9272.

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Abstract (sommario):

The availability of boats is needed to develop fishing tourism. Most of the boats used so far generally use fishing boats made of woodcut in the forest, so this can damage the environment and cause natural disasters. Ships using a flat plate hull made of steel can be a substitute for wooden ships. This study aims to test the stability of a flat plate vessel designed for fishing boats. The ship stability test was carried out using a computer simulation method using Maxsurf Stability software. The ship stability criteria refer to the International Maritime Organization code A.749 (18), Ch 3-desi

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50

Mironiuk, Waldemar. "Model studies of ships as an element of maritime transport." WUT Journal of Transportation Engineering 121 (June 1, 2018): 267–76. http://dx.doi.org/10.5604/01.3001.0014.4607.

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Abstract (sommario):

Transport of large amounts of cargo, mining and exploiting natural mineral resources, carrying large number of passengers by sea are characterized by high risk, even if the latest technologies are employed. It is not a long time ago that thousands of people lost their lives in catastrophes of ships, off-shore oil rigs and other marine objects. It is estimated that around 80% of accidents at sea are caused by making wrong decisions by persons keeping watch on the bridge, especially during difficult navigational and weather conditions. Accidents can also be caused by lack of skills necessary for

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