Scientific Bulletin Kherson State Maritime Academy最新文献

{"title":"CLASSIFICATION OF HYDRODYNAMIC EQUATIONS FOR USE IN INFORMATION TECHNOLOGIES UNDER FLOW VISUALIZATION","authors":"D. Malakhova","doi":"10.33815/2313-4763.2019.2.21.115-123","DOIUrl":"https://doi.org/10.33815/2313-4763.2019.2.21.115-123","url":null,"abstract":"","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"418 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":"124202998","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":"SAFETY OF DYNAMIC POSITIONING OF WATER TRANSPORT MOBILE OBJECTS IN THE SUPERIOR OF REASONS FOR TECHNICAL SYSTEMS FAILURE FROM DIFFERENT INDEPENDENT SOURCES","authors":"R. Gabruk","doi":"10.33815/2313-4763.2020.1.22.004-010","DOIUrl":"https://doi.org/10.33815/2313-4763.2020.1.22.004-010","url":null,"abstract":"technical system safety of mobile water transport object. The process of dynamic positioning control of mobile water transport object is studied as the interaction of components of the polyergatic system. The dynamic positioning operator is considered as a functional component, which forms the sence of the human factor in safety of marine navigation. It is determined that the property of heterogeneity of the locally confined space of the techno-natural complex plays a major role, which influences safety during all space-time interval of high-precision navigation realization during conducting the complex technological work. Probability, which in the paper is considered as a measure in well-known Kolmogorov’s probability space, reflects the functional stability criteria under conditions sudden failures. Failures arise as a result of an unfavorable combination of random external factors that exceed possibilities of complex dynamic system adaptation. The value of the heterogeneous flow of perturbing events affects the distribution density nature, because other members represent constants factors in research time frame. The corresponding adequate laws of distribution describe the probability of the reliable function of complex technical systems with different hierarchy levels. Based on the formulated algebraic expressions for common in marine practice two independent failure causes of the dynamic positioning system components, an algorithm was drawn up and simulated in the MATLAB software environment with additional usage of Simulink package. Developed software package allows during practical conditions on board and on shore find solutions to a whole problem class in order to ensure safe and reliable function of the technical component, which is a part of the polyergatic system that aimed to control dynamic positioning and technological work under flow of perturbing events. The perspective directions of further scientific researches have been determined. The main direction of further researches is a creation of new intelligent decision support systems, which are based on mathematical modelling and reliability prediction. One of proposed directions form scientific ground for improvement of international and local requirements, standards and rules for technical systems and equipment redundancy.","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"88 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":"124170961","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":"DETERMINATION OF MECHANICAL CONSTANTS OF THE STERN TUBE BEARING","authors":"A. Motailo","doi":"10.33815/2313-4763.2019.2.21.163-171","DOIUrl":"https://doi.org/10.33815/2313-4763.2019.2.21.163-171","url":null,"abstract":"","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"7 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":"115160874","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":"INFLUENCE OF SYNTHESIZED POWDER TITANIUM-ALUMINUM CHARGE ON MECHANICAL PROPERTIES OF EPOXYCOMPOSITES FOR SEA AND RIVER TRANSPORT","authors":"O. Sizonenko, R. Negrutsa, O. Torpakov, N. Buketova, N. Pilypchuk","doi":"10.33815/2313-4763.2019.1.20.151-161","DOIUrl":"https://doi.org/10.33815/2313-4763.2019.1.20.151-161","url":null,"abstract":"It has been demonstrated that in order to improve anticorrosive properties and wear resistance of sea and river transport, military equipment, vehicle manufacturing, chemical, oil refining and gas industries, the utilization of polymeric epoxycomposite protective coatings is required. Polymer operational properties, including epoxy, composite materials and protective coatings based on them, have been improved due to introduction of pulverulent nano-and microdispersed fillers. ED-20 epoxy diane oligomer, PEPA polyethylene polyamine hardener and microdispersed particles synthesized by high-voltage electrical discharge powder titanium aluminum charge have been utilized to form composite materials and protective coatings used in transport industry. The relationship between the content of microdispersed powder and adhesive, stress-related properties and residual stresses of epoxy composites has been investigated. It has been proved that in order to form a composite material or protective coating with improved adhesive and cohesive properties, the desirable particle content is to be 0.05...0.50 wt.h. per 100 wt.h. of ED-20 epoxy oligomer. The advantage of the current development over foreign alternatives and those produced within the country is that it is possible to consider the main factors of corrosive environments where processing equipment is being operated, and development of materials, possessing high stress-related, heat-transfer, corrosion and wear resistance properties. Given this, an interaction-active microdispersed filler synthesized by a high-voltage electrical spark discharge has been introduced into the epoxy binder. By doing so, it is of essential importance to determine the critical content of the synthesized by high-voltage electrical discharge titanium-aluminum microdispersed powder charge during formation of protective epoxy coatings for sea and river transport.","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"2 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":"114924105","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}