Scientific Bulletin Kherson State Maritime Academy最新文献_第5页

HIGH VOLTAGE SIMULATOR FOR TRAINING OF SHIP PERSONNEL 用于船舶人员训练的高压模拟器

Scientific Bulletin Kherson State Maritime Academy Pub Date : 1900-01-01 DOI: 10.33815/2313-4763.2019.1.20.020-029

A. Ivanov, K. Timofeev, M. Avramenko, G. Rastegina

引用次数: 0

RESEARCH OF THE INFLUENCE OF OPERATIONAL MODES ON TRIBOLOGICAL PROPERTIES OF ORGANIC PLASTICS REINFORCED WITH CHEMICAL FIBERS BY UTILIZING THE METHOD OF MATHEMATICAL PLANNING OF THE EXPERIMENT 利用实验数学规划的方法研究了不同工作模式对化学纤维增强有机塑料摩擦学性能的影响

Scientific Bulletin Kherson State Maritime Academy Pub Date : 1900-01-01 DOI: 10.33815/2313-4763.2019.2.21.154-162

K. Yeriomina, A. Tomina, O. Burya, S. Tomin

引用次数: 0

DYNAMIC SHIP POSITIONING IN DECLINING OF THE CONTROL PARAMETER, THE QUANTITY OF WHICH IS COMPARABLE WITH THE ERRORS OF ITS DETERMINATION 船舶动态定位控制参数的下降，其数量与其确定误差相当

Scientific Bulletin Kherson State Maritime Academy Pub Date : 1900-01-01 DOI: 10.33815/2313-4763.2019.2.21.016-025

A. Maltsev

引用次数: 0

AUTOMATIC CONTROL OF THE VESSEL’S MOVEMENT UNDER EXTERNAL CONDITIONS 在外部条件下自动控制船舶的运动

Scientific Bulletin Kherson State Maritime Academy Pub Date : 1900-01-01 DOI: 10.33815/2313-4763.2019.2.21.010-015

S. Zinchenko, P. Mamenko, O. Grosheva, V. M. Mateychuk

引用次数: 3

SPECIAL FEATURES OF CALCULATION OF TECHNICAL AND ECONOMIC INDICATORS OF FLOATING COMPOSITE DOCK STRUCTURES WITH REDUCED NUMBER OF PONTOON FRAMES 减少桥架数的浮式组合船坞结构技术经济指标计算的特点

Scientific Bulletin Kherson State Maritime Academy Pub Date : 1900-01-01 DOI: 10.33815/2313-4763.2019.2.21.044-050

K. Kyrychenko

引用次数: 0

THE METHOD OF INCREASING THE SERVICE LIFE OF RIVER AND SEA TRANSPORT EQUIPMENT THROUGH THE USE OF MODIFIED PROTECTIVE ANTI-CORROSION COATINGS 通过使用改性防护防腐涂料提高河海运输设备使用寿命的方法

Scientific Bulletin Kherson State Maritime Academy Pub Date : 1900-01-01 DOI: 10.33815/2313-4763.2020.1.22.074-083

Т. V. Cherniavska

{"title":"THE METHOD OF INCREASING THE SERVICE LIFE OF RIVER AND SEA TRANSPORT EQUIPMENT THROUGH THE USE OF MODIFIED PROTECTIVE ANTI-CORROSION COATINGS","authors":"Т. V. Cherniavska","doi":"10.33815/2313-4763.2020.1.22.074-083","DOIUrl":"https://doi.org/10.33815/2313-4763.2020.1.22.074-083","url":null,"abstract":"The article is targeted at solving a scientific and technical problem considered to be an issue of current interest. The issue imposes an enhancement and extension of the service life of equipment for river and sea transport through the use of developed polymer composite modified anti-corrosion protective coatings. The solution to the scientific and technical problem investigated has been considered. The suggested solution involves the development of a method for target-specific control of the processes of interaction between the components of the epoxy polymer, which made it possible to create a new class of composite materials and coatings based on the latter possessing high performance characteristics, intended for the revitalization of water transport. New regularities have been established for increasing the resource and corrosion resistance of transport vehicles due to the formation of coatings which contain phthalimide (0.25 mass %) modifier and the synthesized iron-carbide charge (0.2 ... 0.5 mass %) per 100 mass.% epoxy oligomer ED-20, which makes it possible to obtain materials with improved cohesive properties due to the significant specific surface area of dispersed additives and their increased activity in interfacial interaction when they are introduced into the polymer at an optimal content. The technological scheme for the building-up of coatings has been developed for the first time ever. In consequence of the latter, a synergistic effect has been achieved in increasing the service life of river and sea transport equipment and improving the anticorrosive properties of protective coatings as a result of the complex action of the phthalimide modifier, microdispersed fillers in the form of synthesized iron-carbide charge and phytic acid. The method of IR spectroscopy has justified an increase in the degree of crosslinking of a three-dimensional polymer network, which provides an improvement in the properties of composites. This is due to the fact that on the surface of the particles after synthesis, the areas of titanium and iron carbides are getting localized, which are mainly considered to be the activators of the creation of physical and chemical interphase bonds during the cross-linking of anticorrosive coatings.","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"9 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":"126582827","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}

引用次数: 0

MODELS OF DECISION MAKING BY A NAVIGATOR UNDER IMPLICIT AGREEMENTS WITH COLREG RULES 航海家在与集体规则隐含协议下的决策模型

Scientific Bulletin Kherson State Maritime Academy Pub Date : 1900-01-01 DOI: 10.33815/2313-4763.2019.1.20.031-039

P. Nosov, S. Zinchenko, A. Ben, Y. Nahrybelnyi, O. Dudchenko

引用次数: 1

CONCEPT AND ALGORITHMS OF CREATION SYSTEMS OF EMERGENCY DETECTION AND RESPONSE IN THE TERRITORY OF PARTICULAR IMPORTANCE REAL-TIME OBJECTS 在特别重要的实时对象领域中创建紧急检测和响应系统的概念和算法

Scientific Bulletin Kherson State Maritime Academy Pub Date : 1900-01-01 DOI: 10.33815/2313-4763.2019.2.21.089-097

M. Vasyukhin, A. Kasim, A. Ben

引用次数: 0

THEORETICAL PREREQUISITES FOR OPERATION OF STRUCTURES WITH METAL-GLASS PROTECTIVE COATINGS ON BOARD A VESSEL IN VIBRATION ENVIRONMENT 船舶金属玻璃防护涂层结构在振动环境下运行的理论前提

Scientific Bulletin Kherson State Maritime Academy Pub Date : 1900-01-01 DOI: 10.33815/2313-4763.2020.1.22.175-185

Y. Kazymyrenko, N. Lebedieva

{"title":"THEORETICAL PREREQUISITES FOR OPERATION OF STRUCTURES WITH METAL-GLASS PROTECTIVE COATINGS ON BOARD A VESSEL IN VIBRATION ENVIRONMENT","authors":"Y. Kazymyrenko, N. Lebedieva","doi":"10.33815/2313-4763.2020.1.22.175-185","DOIUrl":"https://doi.org/10.33815/2313-4763.2020.1.22.175-185","url":null,"abstract":"The article is devoted to looking for a solution for the scientific and technical issue of reducing vibrations on vessels. It is considered to be achieved with the application of the vibration-absorbing composite coatings. The purpose of the work is to theoretically substantiate the possibility of operation of structures with metal-glass coatings taking into consideration the vibration environment of a vessel. The formulation of the research includes the discovery of the solution for the micromechanics issue set up on the model of a two-layer plate St3 ‒ metal-glass coatings, taking into account their structural features, and experimental tensile tests. The influence of the polydisperse structure of coatings on the mechanisms of absorption of elastic-plastic waves of dynamic oscillations has been analyzed with the help of the analytical description of microdisplacement deformations. The influence of morphology and volume content of glass fillers, specifically hollow glass microspheres, powders of sodium silicate and lead-containing glass on the vibration coefficient, strength limit and yield strength has been investigated. Calculations have shown the feasibility of using metal-glass coatings in conditions of vessel vibration, which is due to the absorption of energy by glass inclusions of spherical and angular shape. It has been experimentally proven that coated plates are slightly inferior in tensile strength to samples with St3; the destruction of coatings occurs between glass inclusions. The obtained results have scientific and practical significance for the design of ship structures using composite materials and coatings.","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":"132696845","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}

引用次数: 0

STUDY OF THE INFLUENCE OF THE TUBE POSITION IN THE TUBE BUNDLE OF THE SHELL AND TUBE HEAT EXCHANGER ON THE PROCESS OF HEAT TRANSFER 壳管式换热器管束中管的位置对传热过程影响的研究

Scientific Bulletin Kherson State Maritime Academy Pub Date : 1900-01-01 DOI: 10.33815/2313-4763.2020.1.22.099-108

K. Lunyaka, O. Kliuiev, S. Rusanov, O. Kliuieva

{"title":"STUDY OF THE INFLUENCE OF THE TUBE POSITION IN THE TUBE BUNDLE OF THE SHELL AND TUBE HEAT EXCHANGER ON THE PROCESS OF HEAT TRANSFER","authors":"K. Lunyaka, O. Kliuiev, S. Rusanov, O. Kliuieva","doi":"10.33815/2313-4763.2020.1.22.099-108","DOIUrl":"https://doi.org/10.33815/2313-4763.2020.1.22.099-108","url":null,"abstract":"The paper is concerned with an issue of liquid distribution in the diametrical bank tubes of the shell and tube heat exchanger. The experimental-theoretical approach for the research has been applied. The data on the determination of velocities of the heated liquid through the pipes of the heat exchanger have been obtained and processed. The research was carried out at the created experimental factory. Water at a temperature of 20 ºС has been supplied to the tubes. The temperature of the water has been maintained by a thermostat. The temperature at the outlet of the tube has been measured with a thermocouple element. Water (heat conductor,) at a temperature of 60, 80 or 95 ºС has been circulating in the outside of tubes space. The temperature of the water has been maintained by pumping it through a thermostat. The velocities of the heated liquid in the diametric bank tubes have been determined, which differed considerably depending on the position of the tube. Consequently, the results of the research obtained have discovered the significant deviations of such parameters as the liquid temperature at the outlet of the apparatus, tube wall temperature and heat transfer coefficients between the tube and heated liquid. The distribution insert has been used, in order to match the above-mentioned indicators. The distribution insert is a disk with the optimized holes. The alignment of the liquid velocities through the tubes of the diametric bank has been observed, which has consequently led to the uniform heating of both the central and side tubes. The study outcome has proven to be the solution to prevent the overheating of the peripheral tubes. Thus, the generation of a uniform field of velocities for the heat transfer agent through the tubes of the shell and tube heat exchanger contributes to the uniform heating of both central and peripheral tubes, and increases the heat transfer coefficient in the side tubes. The conclusion has been drawn that the reason for the failure or heat transfer low efficiency in the peripheral tubes of the shell and tube heat exchanger is the nonuniform distribution of liquid velocities in different tubes and as a consequence, the low heat transfer coefficient in those tubes where the velocity is low.","PeriodicalId":131599,"journal":{"name":"Scientific Bulletin Kherson State Maritime Academy","volume":"14 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":"114780286","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}

引用次数: 0