: With economic globalization, ships tend to be larger and faster, and the volume of maritime traffic is increasing. S hips sailing in waters with dense traffic flow are easy to fall into compli cated multi-ship encounter situations and have a high risk of collision. Thus, it is crucial to conduct risk analysis in such situations. In this paper, a modified collision analysis method for detecting dangerous multi-ship encounters in ports and waterwa ys is proposed. The velocity obstacle algorithm is utilized to detect encounters. The model of the elliptic ship domain was integrated into the algorithm as the criteria. The Boolean operation was also used in the multi-ship encounter. A case study is conducted to illustrate the efficacy of the improved model, and a comparison between the existing method and the formal model is also performed. The results indicate that with the integration of the ship domain, the proposed method can effectively detect the encounters of multiple ships which are dangerous to collide.
{"title":"Multi-ship Encounter Situation Analysis with the Integration of Elliptical Ship Domains and Velocity Obstacles","authors":"Zhaoxi Cheng, Pengfei Chen, Junmin Mou, Linying Chen","doi":"10.12716/1001.17.04.16","DOIUrl":"https://doi.org/10.12716/1001.17.04.16","url":null,"abstract":": With economic globalization, ships tend to be larger and faster, and the volume of maritime traffic is increasing. S hips sailing in waters with dense traffic flow are easy to fall into compli cated multi-ship encounter situations and have a high risk of collision. Thus, it is crucial to conduct risk analysis in such situations. In this paper, a modified collision analysis method for detecting dangerous multi-ship encounters in ports and waterwa ys is proposed. The velocity obstacle algorithm is utilized to detect encounters. The model of the elliptic ship domain was integrated into the algorithm as the criteria. The Boolean operation was also used in the multi-ship encounter. A case study is conducted to illustrate the efficacy of the improved model, and a comparison between the existing method and the formal model is also performed. The results indicate that with the integration of the ship domain, the proposed method can effectively detect the encounters of multiple ships which are dangerous to collide.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134982468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: A good situation awareness (SA) of the navigator is essential for the safety of the ship, especially in coastal areas. In this study, the Unity 3D engine was used to simulate the navigation of a coastal tradin g vessel along predefined routes in the Baltic Sea. The SA of the helmsman, who was either Chinese or European, was assessed several times wit h the SAGAT test (Endsley, 1995b, 20-21) and compared between low and high workload conditions and between manual and autopilot navigation. High workload and automated navigation both reduced SA sign ificantly and in an additive manner. No difference was found between Chinese and European participants. In contrast to previous accident analyses of SA, we found that SA l evel 3 (projection of future states) was most strongly affected by both factors, whil e SA levels 1 (perception of relevant information) and 2 (comprehension of the current situation) suffered to a lesser extent. Further research is needed to establish spec ific relationships between types of automation on ships, types of workload, and SA pr oblems in order to design countermeasures.
{"title":"How Does Maritime Situation Awareness Depend on Navigation Automation and Mental Workload? A Sea Simulator Experiment","authors":"Gisela Múller-Plath, Johannes Lehleitner, Julian Maier, Jannes Silva-Lóbling, Hao Zhang, XiaoXiao Zhang, Shiqing Zhou","doi":"10.12716/1001.17.04.23","DOIUrl":"https://doi.org/10.12716/1001.17.04.23","url":null,"abstract":": A good situation awareness (SA) of the navigator is essential for the safety of the ship, especially in coastal areas. In this study, the Unity 3D engine was used to simulate the navigation of a coastal tradin g vessel along predefined routes in the Baltic Sea. The SA of the helmsman, who was either Chinese or European, was assessed several times wit h the SAGAT test (Endsley, 1995b, 20-21) and compared between low and high workload conditions and between manual and autopilot navigation. High workload and automated navigation both reduced SA sign ificantly and in an additive manner. No difference was found between Chinese and European participants. In contrast to previous accident analyses of SA, we found that SA l evel 3 (projection of future states) was most strongly affected by both factors, whil e SA levels 1 (perception of relevant information) and 2 (comprehension of the current situation) suffered to a lesser extent. Further research is needed to establish spec ific relationships between types of automation on ships, types of workload, and SA pr oblems in order to design countermeasures.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"363 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134982474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pawel Kolakowski, Grzegorz Rutkowski, Andrzej Lebkowski
: Each type of ship must have appropriate mooring systems adapted to the fact that after the end of the voyage and shutdown of its propuls ion, it is moored and is not exposed to the dangers related to the negative influence of external factors. Moreover, the mooring
{"title":"Ships-To-Ship Magnetic Mooring Systems – The New Perspectives","authors":"Pawel Kolakowski, Grzegorz Rutkowski, Andrzej Lebkowski","doi":"10.12716/1001.17.04.10","DOIUrl":"https://doi.org/10.12716/1001.17.04.10","url":null,"abstract":": Each type of ship must have appropriate mooring systems adapted to the fact that after the end of the voyage and shutdown of its propuls ion, it is moored and is not exposed to the dangers related to the negative influence of external factors. Moreover, the mooring","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134982476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: The article presents the results of the DEMATEL method (Decision Making Trial and Evaluation Laboratory) method. The method had been used to identify and analyze cause and effect relationships between factors that influence the use of inl and waterway transport. The author took into account interactions between seven factors. The factors were: (1) accessibility and condition of ports, transshipment infrastructure, shipyards, and service areas, (2) operating parameters of the linear infrastr ucture (waterways and locks), (3) technical condition of the fleet, (4) human errors committed by crew, infrastructure operators, and/or decision makers, (5) climate and weather conditions (floods, droughts, wind, ice, groundwater level), (6) financing the water transport system - repairs, ongoing maintenance of infrastructure; subsidies and discounts for shipowners, (7) availability of information (e.g. navigation messages), method of data collection and distribution, communication and promotion of inland navigation. The analysis based on the DEMATEL method used the survey conducted among Polish experts in the field of inland waterway transport. The results of the analysis show that the most influencing factor is financing, and the most important cause infl uencing inland waterway transport is climate.
{"title":"The Use of the DEMATEL Method to Analyze Factors Influencing the Usage of Inland Waterway Transport","authors":"Emilia Skupien","doi":"10.12716/1001.17.04.05","DOIUrl":"https://doi.org/10.12716/1001.17.04.05","url":null,"abstract":": The article presents the results of the DEMATEL method (Decision Making Trial and Evaluation Laboratory) method. The method had been used to identify and analyze cause and effect relationships between factors that influence the use of inl and waterway transport. The author took into account interactions between seven factors. The factors were: (1) accessibility and condition of ports, transshipment infrastructure, shipyards, and service areas, (2) operating parameters of the linear infrastr ucture (waterways and locks), (3) technical condition of the fleet, (4) human errors committed by crew, infrastructure operators, and/or decision makers, (5) climate and weather conditions (floods, droughts, wind, ice, groundwater level), (6) financing the water transport system - repairs, ongoing maintenance of infrastructure; subsidies and discounts for shipowners, (7) availability of information (e.g. navigation messages), method of data collection and distribution, communication and promotion of inland navigation. The analysis based on the DEMATEL method used the survey conducted among Polish experts in the field of inland waterway transport. The results of the analysis show that the most influencing factor is financing, and the most important cause infl uencing inland waterway transport is climate.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134982479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Teresa Abramowicz-Gerigk, Andrzej Hejmlich, Maciej Randak
: The development of smart port systems and autonomous navigation is related to the growing interest in the systemic approach to risk assessment of port operations especially for the vessels transporting dangerous cargo. The paper presents the general risk model of port manoeuvres of a chemical tanker vessel. The risk model is based on Ba yesian influence diagram allowing to determine the risk dependent on the decisions made with respect to the applied safety options. The conclusions are based on real life near miss examples and discussion of experienced Ship Masters.
{"title":"Risk Assessment of Port Manoeuvres of a Chemical Tanker Vessel","authors":"Teresa Abramowicz-Gerigk, Andrzej Hejmlich, Maciej Randak","doi":"10.12716/1001.17.04.08","DOIUrl":"https://doi.org/10.12716/1001.17.04.08","url":null,"abstract":": The development of smart port systems and autonomous navigation is related to the growing interest in the systemic approach to risk assessment of port operations especially for the vessels transporting dangerous cargo. The paper presents the general risk model of port manoeuvres of a chemical tanker vessel. The risk model is based on Ba yesian influence diagram allowing to determine the risk dependent on the decisions made with respect to the applied safety options. The conclusions are based on real life near miss examples and discussion of experienced Ship Masters.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134982647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: This paper presents the development of a method for calculating the horizontal contact forces between two bodies in a real-time ship manoeuvring simulator. The method was implemented in the simulator of the University of São Paulo, whose computing core is named “Dyna”. The model proposed calculates restoration and friction forces between bodies and has a Momentum -Impulse based criterion to reduce numerical issues when the simulation numerical integration has large time - steps. The model was empirically evaluated at the simulator by deck officers, in real-time simulations with pilots and tugmasters. We also ran simulations of that model to compare its performance under different integration time-steps lengths.
{"title":"Vessel-Fender Contact Force Modelling for a Real-time Ship Manoeuvring Simulator","authors":"Felipe Marino Moreno, Humberto Akira Uehara Sasaki, Humberto Shigueki Makiyama, Eduardo Aoun Tannuri","doi":"10.12716/1001.17.04.07","DOIUrl":"https://doi.org/10.12716/1001.17.04.07","url":null,"abstract":": This paper presents the development of a method for calculating the horizontal contact forces between two bodies in a real-time ship manoeuvring simulator. The method was implemented in the simulator of the University of São Paulo, whose computing core is named “Dyna”. The model proposed calculates restoration and friction forces between bodies and has a Momentum -Impulse based criterion to reduce numerical issues when the simulation numerical integration has large time - steps. The model was empirically evaluated at the simulator by deck officers, in real-time simulations with pilots and tugmasters. We also ran simulations of that model to compare its performance under different integration time-steps lengths.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134982649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dominika Kaczerska, J. Kizielewicz, K. Skrzeszewska
: In every sector of the economy, the use of digital technologies can be observed. In maritime transport, the use of digital technologies is used to operate the infrastructure as well as to reach the customer. The digital transformation in ferry shipping plays a significant role, not only in operations, but also in the way passengers are acquired. The availability and ease of purchasing tickets are important from the point
{"title":"Digital Transformation in Ferry Shipping – Case Study in the Baltic Sea Region","authors":"Dominika Kaczerska, J. Kizielewicz, K. Skrzeszewska","doi":"10.12716/1001.17.03.06","DOIUrl":"https://doi.org/10.12716/1001.17.03.06","url":null,"abstract":": In every sector of the economy, the use of digital technologies can be observed. In maritime transport, the use of digital technologies is used to operate the infrastructure as well as to reach the customer. The digital transformation in ferry shipping plays a significant role, not only in operations, but also in the way passengers are acquired. The availability and ease of purchasing tickets are important from the point","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"4 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73518771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of Alternative Configurations of Ship Power Systems Using Biofuels and Renewable Energy","authors":"J. Herdzik","doi":"10.12716/1001.17.03.08","DOIUrl":"https://doi.org/10.12716/1001.17.03.08","url":null,"abstract":"reducing fuel","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"12 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74684948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: An increase in the complexity of systems onboard ships in the last decade has seen a rise in the number of reported maritime cyber ‐ attacks. To tackle this rising risk the International Maritime Organization published high ‐ level requirements for cyber risk management in 2017. These requirements obligate organisations to establish procedures, like incident response plans, to manage cyber ‐ incidents. However, there is currently no standardised framework for this implementation. This paper proposes a Cyber Emergency Response Procedure (CERP), that provides a framework for organisations to better facilitate their crew’s response to a cyber ‐ incident that is considerate of their operational environment. Based on an operations flowchart, the CERP provides a step ‐ by ‐ step procedure that guides a crew’s decision ‐ making process in the face of a cyber ‐ incident. This high ‐ level framework provides a blueprint for organisations to develop their own cyber ‐ incident response procedures that are considerate of operational constraints, existing incident procedures and the complexity of modern maritime systems.
{"title":"CERP: A Maritime Cyber Risk Decision Making Tool","authors":"E. Erstad, R. Hopcraft, Juan Dorje Palbar, K. Tam","doi":"10.12716/1001.17.02.02","DOIUrl":"https://doi.org/10.12716/1001.17.02.02","url":null,"abstract":": An increase in the complexity of systems onboard ships in the last decade has seen a rise in the number of reported maritime cyber ‐ attacks. To tackle this rising risk the International Maritime Organization published high ‐ level requirements for cyber risk management in 2017. These requirements obligate organisations to establish procedures, like incident response plans, to manage cyber ‐ incidents. However, there is currently no standardised framework for this implementation. This paper proposes a Cyber Emergency Response Procedure (CERP), that provides a framework for organisations to better facilitate their crew’s response to a cyber ‐ incident that is considerate of their operational environment. Based on an operations flowchart, the CERP provides a step ‐ by ‐ step procedure that guides a crew’s decision ‐ making process in the face of a cyber ‐ incident. This high ‐ level framework provides a blueprint for organisations to develop their own cyber ‐ incident response procedures that are considerate of operational constraints, existing incident procedures and the complexity of modern maritime systems.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"8 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89264379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: Power from renewable sources would play a key role in the future of electricity .The wind energy is one of the goal of EU ʹ s commitment, which want to develop offshore wind potential [1], [2]. Lubrication of wind turbines is very important for maintenance [3] . The purpose of this paper is to present some considerations about monitoring oiling system. This system monitors kinematic data in real time. The importance of monitoring real data with this system help us to simulate lubrication for various types of wind turbine reducers in order to choose the optimal form of the lubrication system and for good maintenance
{"title":"Considerations Regarding Oiling System for Offshore Wind Turbines","authors":"M. Panaitescu, F. Panaitescu, P. Panait, A. Scupi","doi":"10.12716/1001.17.03.07","DOIUrl":"https://doi.org/10.12716/1001.17.03.07","url":null,"abstract":": Power from renewable sources would play a key role in the future of electricity .The wind energy is one of the goal of EU ʹ s commitment, which want to develop offshore wind potential [1], [2]. Lubrication of wind turbines is very important for maintenance [3] . The purpose of this paper is to present some considerations about monitoring oiling system. This system monitors kinematic data in real time. The importance of monitoring real data with this system help us to simulate lubrication for various types of wind turbine reducers in order to choose the optimal form of the lubrication system and for good maintenance","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"12 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85412099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：