Scientific Bulletin Kherson State Maritime Academy最新文献

{"title":"MODELING THE DIVERGENCE OF SHIPS IN THE DECISION SUPPORT SYSTEM OF THE NAVIGATOR","authors":"I. Palamarchuk","doi":"10.33815/2313-4763.2020.1.22.045-053","DOIUrl":"https://doi.org/10.33815/2313-4763.2020.1.22.045-053","url":null,"abstract":"The aim of the study is to develop modern conceptual approaches to the construction of decision support systems in navigation, to determine the theoretical and practical foundations for creating such systems and priority ways of their practical implementation. From the analysis of recent publications, it has been revealed that the widespread use of new information technologies and modern technical means of navigation leads to an increase in the detail of the present navigation situation, but at the same time its assessment becomes more complicated and the time available to the navigator for analysis and development of the necessary control decision is reduced. For this reason, the development of decision support systems (DSS) for the navigator, which use new meaningful models of the hazard identification process for navigating a ship in the event of prerequisites for an emergency, is an urgent task of the present time. The creation of such systems will reduce the negative impact of the human factor on the processes of ship traffic control. The article develops theoretical and practical foundations for constructing a DSS for a navigator, taking into account the peculiarities of the movement of ships, the process of human interaction with technical means of navigation. The article develops theoretical and practical foundations for constructing a DSS for a navigator, taking into account the peculiarities of the movement of ships, the process of human interaction with technical means of navigation. New mathematical models of control over the process of divergence of ships are proposed. The classification of ships according to the degree of danger is carried out, depending on the change in the angle of the line of their relative movement. Criteria for a quantitative assessment of the hazard level of a ships based on the analysis of changes in the angle of the line of its relative motion are presented. The results obtained are the basis for further increasing the efficiency of the functioning of the ergatic system «man - technical means of navigation» and the comprehensive implementation of the achievements of new information technologies in the ship control processes.","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"308 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134410517","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":"IMPROVING CONSTRUCTIVE AND TECHNOLOGICAL CONNECTING JOINTS OF REINFORCED CONCRETE PONTOON WITH A TRANSVERSE DIAPHRAGM AND A METAL TOWER IN A FLOATING COMPOSITE DOCK","authors":"O. Shchedrolosiev, O. Uzlov, K. Kyrychenko","doi":"10.33815/2313-4763.2020.1.22.142-152","DOIUrl":"https://doi.org/10.33815/2313-4763.2020.1.22.142-152","url":null,"abstract":"The analysis of the known technical decisions in dock construction field, rationalizing production resources at composite docks construction is given. It is established that the available solutions do not specify the recommendations for lowering the metal content in the reinforced concrete pontoon of composite floating docks. As a result of the conducted research, the design of floating composite docks was improved by reducing sets in the reinforced concrete pontoon. The rationality of a pontoon design construction without installation of frames, floors, and beams under towers is substantiated. Technological recommendations for the transverse partitions installation between the inner boards in 4 spaces, i.e. in 3 meters in contrast to the classical design in which the distance between the partitions is 1.5 meters, were described. The analysis of the design features of the reinforced concrete pontoon connecting joints with the transverse diaphragm and the metal tower of the floating composite dock is carried out, the difficulties that arise are described. The design and technological recommendations for the construction of the reinforced concrete pontoon joints with the transverse diaphragm and the metal tower have been developed. The floating dock construction sequence and technological operations ensuring concrete’s strength, water tightness and frost resistance at intersection joints are described. Solutions that increase the local adhesion of concrete to cross-shaped parts and prevent its exfoliation have been developed. The traditional scheme of the composite dock construction and a structural joint of a metal tower with a reinforced concrete pontoon is given. The composite dock construction scheme and the construction scheme of the joints of the reinforced concrete pontoon with the transverse diaphragm and the metal tower, which are designed for the construction of floating composite docks with reduced metal content in the pontoon, have been improved.","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122570764","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":"MOBILE MARINE ENERGY FACILITY “CASCAD”","authors":"P. Remizov, O. Tovstokory, I. Seliverstov, M. Danshin","doi":"10.33815/2313-4763.2019.2.21.051-058","DOIUrl":"https://doi.org/10.33815/2313-4763.2019.2.21.051-058","url":null,"abstract":"","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128855204","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":"PLANNING METHODS FOR MODERN CONTAINER TRANSPORTATION","authors":"A. Fedorov","doi":"10.33815/2313-4763.2019.2.21.124-131","DOIUrl":"https://doi.org/10.33815/2313-4763.2019.2.21.124-131","url":null,"abstract":"","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123461992","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":"CLASSIFICATION CHARACTERISTICS OF UNMANNED TETHERED UNDERWATER SYSTEMS AS A COMPONENT OF IMPROVING THE EFFICIENCY OF THEIR DESIGN","authors":"V. Blintsov, O. P. Klochkov, P. Kucenko","doi":"10.33815/2313-4763.2020.1.22.086-098","DOIUrl":"https://doi.org/10.33815/2313-4763.2020.1.22.086-098","url":null,"abstract":"The design stage is considered to be rather resource-intensive in the entire process of creating marine robotic technology. Therefore, the applied scientific task of reducing the resource costs for those processes is of high interest. Among other things, the time consumed for design stage has to be reduced by determining the design characteristics at an early stage of design. The approach considered to reduce such costs involves structuring the classification features of tethered underwater systems in such a way as to simplify the selection and justification of design solutions at the stage of preliminary system design. For design engineers of underwater equipment, the list of classification features of tethered self-propelled and those towed underwater systems has been suggested. The list is based on a system approach and is structured according to material, energy, information and operational (functional) criteria. All of that enables performing the comparative assessment of existing systems upon key indicators and formalizing the processes of their synthesis at early stages of design. To demonstrate the capabilities of the system approach, the generalized algorithm for the organization of design works using the system of classification features of tethered self-propelled and towed underwater systems at the early stages of their design. The algorithm involves the formation and structuring of many classification features of such systems as the initial stage of the process of making effective design decisions in the early stages of design of underwater robotics. It has been revealed that putting in use the classification features system in question, enables deploying minimal project resources to make reference to the relevant databases and decide on already-existing artifact projects and select out of those available in the underwater equipment market key components and parts of underwater systems which would satisfy the requirements of the technical task of implementing the tethered underwater systems. That would significantly reduce the prime cost of design works and enhance the competitiveness of domestic science-based achievements in the markets of marine robotics.","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123812813","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":"STATISTICAL ASSESSMENT OF INERTIA LOADS ONTO SHAFT BEARINGS OF THE SHIP DURING LONGITUDINAL SHIP MOTION IN CONFUSED SEA","authors":"A. Ursolov, V. Nekrasov","doi":"10.33815/2313-4763.2019.2.21.067-076","DOIUrl":"https://doi.org/10.33815/2313-4763.2019.2.21.067-076","url":null,"abstract":"","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123533382","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":"PERSPECTIVE METHODS OF DIVERGENCE OF VESSELS AND ANALYSIS OF THEIR EFFICIENCY","authors":"Yu. M. Khussein, O. Yanchetskyy","doi":"10.33815/2313-4763.2020.1.22.054-063","DOIUrl":"https://doi.org/10.33815/2313-4763.2020.1.22.054-063","url":null,"abstract":"The article is devoted to the analysis of the most perspective and effective locally-independent methods of divergence of vessels for forming of the system of the automatic warning of collisions, providing safety of perspective autonomous vessels. Development of method of estimation of efficiency of methods of divergence of vessels, which characterizes the degree of safety of completion of process of divergence of vessels, is offered, since the moment of discovery of situation of dangerous rapprochement. The stages of process of decision-making divergence of vessels of necessity are considered at their rapprochement and choice of strategy of divergence. It is shown that a decision-making process contains the following stages: control of environment, including relative position and parameters of relative motion, exposure of situation of rapprochement of vessels, estimation of degree of danger of rapprochement and choice of strategy of divergence. Analytical expressions for formalization of the offered stages of process of decision-making divergence of vessels of necessity are resulted. It is shown that depending on the degree of danger of situation of rapprochement, it is necessary to choose strategy of divergence, coming co-ordination of maneuvers of the drawn together vessels from, foreseen ColReg. Thus character of maneuver of divergence is also determined by the value of situation indignation. As a rule, application of standard maneuver of divergence is foreseen, and in the situation of excessive rapprochement of vessels, in order to avoid the collision it is necessary to use the maneuver of urgent divergence. As the index of efficiency of the analytical collision avoidance systems vessels probability of safe completion of process of divergence, which is work of probabilities of successful finish of stages of process of decision-making on the choice of strategy of divergence, is offered. For the system of the automatic warning of collisions the methods of divergence with one dangerous target are offered by the change of course or speed of ship and with two dangerous targets by the combined maneuver of the repeated change of course of ship. After the preliminary analysis the perspective most effective methods of the mentioned types of maneuvers of divergence were offered. For the operative choice of parameters of maneuver of divergence of ship with a target the regions of impermissible values of parameters of deviation and region of acceptability parameters of deviation and output are offered. For the case of choice of maneuver of divergence of ship by the decline of speed the active or passive braking offers the method of forming of region of impermissible speeds and calculation of its scopes. In the situation of dangerous rapprochement of ship with two targets for the operative choice of parameters of maneuver of divergence of ship in work it is suggested to form the region of acceptability successive courses of deviation.","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129171036","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":"RESEARCH OF THE IMPACT OF SYNTHESIZED BY HIGH-VOLTAGE ELECTRICAL DISCHARGE POWDER CHARGE ON HEAT-TRANSFER PROPERTIES OF EPOXY COMPOSITES USED FOR SHIP REPAIR","authors":"A. Buketov, O. Sizonenko, O. Bezbakh, N. Buketovа, Y. Lypian","doi":"10.33815/2313-4763.2019.2.21.142-153","DOIUrl":"https://doi.org/10.33815/2313-4763.2019.2.21.142-153","url":null,"abstract":"","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132312588","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":"CROSSHEAD DIESEL ENGINE PISTON LIFETIME EXTENTION","authors":"O. Samarin, E. Bilousov, V. Savchuk","doi":"10.33815/2313-4763.2019.2.21.059-066","DOIUrl":"https://doi.org/10.33815/2313-4763.2019.2.21.059-066","url":null,"abstract":"","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130930083","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":"MODELLING OF DYNAMIC POSITIONING SYSTEM OF AN OFFSHORE SHIP","authors":"I. Butakov, R. Timofeev","doi":"10.33815/2313-4763.2019.2.21.078-088","DOIUrl":"https://doi.org/10.33815/2313-4763.2019.2.21.078-088","url":null,"abstract":"","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117190509","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}