Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi最新文献

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Calculation of the parameters of the electromechanical shock absorber of the high-speed electric train 高速电动列车机电减振器参数的计算
A. Ozulu, B. Lyubarsky
{"title":"Calculation of the parameters of the electromechanical shock absorber of the high-speed electric train","authors":"A. Ozulu, B. Lyubarsky","doi":"10.32703/2617-9059-2023-41-2","DOIUrl":"https://doi.org/10.32703/2617-9059-2023-41-2","url":null,"abstract":"The article examines the issue of the chassis system of a high-speed electric train with body inclination and a vibration recovery system. The advantages of using an electromechanical shock absorber over hydraulic, pneumatic and similar systems are described. The authors considered the main characteristics of the DC electromechanical shock absorber. The main overall parameters of the shock absorber were presented. Attention is paid to the relevance of using an electromechanical shock absorber of a linear type, in comparison with analogues, including the ability to recover energy. Attention is drawn to the structure of the DC electromechanical shock absorber. The functional control scheme of the electromechanical shock absorber is considered and the control algorithm is described. The calculation areas of the parameters of the electromechanical shock absorber are determined. A 3D model of an electromechanical shock absorber in the Ansys Electronics software environment is presented. A finite-element mesh was built for further calculations of the magnetic field and inductance. In the article, attention is paid to the calculation of the magnetic field in the most intense mode. A picture of the shock absorber's magnetic field at the maximum working clearance was obtained and interim results were discussed. The results of calculating the inductance depending on the operating gap of the shock absorber are presented. Conclusions were made based on the results of calculations of magnetic and electrical parameters of an electromechanical shock absorber based on a linear direct current motor.","PeriodicalId":33465,"journal":{"name":"Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46068751","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: 1
Development of the concept of simulation modeling of the ecological situation based on the theory of self-organization 基于自组织理论的生态态势模拟建模概念的发展
V. Samsonkin, I. Biziuk
{"title":"Development of the concept of simulation modeling of the ecological situation based on the theory of self-organization","authors":"V. Samsonkin, I. Biziuk","doi":"10.32703/2617-9059-2023-41-11","DOIUrl":"https://doi.org/10.32703/2617-9059-2023-41-11","url":null,"abstract":"The article is devoted to the development of a concept of simulation of the environmental situation based on the theory of self-organization. The trend of increasing temperature and sea level due to an increase in the level of greenhouse gases in the Earth’s atmosphere is global. This indicates the need to predict the development of the environmental situation in order to inform the population about possible disasters for preparing people's responses, resettlement planning, psychological adaptation. To predict the environmental situation as a result of accidents and disasters, including in rail transport, an analysis apparatus for possible situations is proposed with the aim of developing recommendations for their prevention. An environmental simulation model based on the theory of self-organization was chosen as the apparatus of research. It is based on the processes of mutually agreed relations, as a result of changes in two species of wildlife (object and environment), leading to the formation of a certain orderliness of these relations. Interaction of this kind occurs in the direction of achieving the existing equilibrium state or the formation of a new balance.","PeriodicalId":33465,"journal":{"name":"Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48402284","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
Experimental studies of truck transport brake pads materials friction properties 卡车运输刹车片材料摩擦性能的实验研究
O. Kliuiev, V. Makarenko, Y. Mieshkov, O. Voitovych
{"title":"Experimental studies of truck transport brake pads materials friction properties","authors":"O. Kliuiev, V. Makarenko, Y. Mieshkov, O. Voitovych","doi":"10.32703/2617-9059-2023-41-3","DOIUrl":"https://doi.org/10.32703/2617-9059-2023-41-3","url":null,"abstract":"The work presents the results of experimental systematic studies of \"wheel-brake pad\" friction pairs wear resistance and the effect of the wear-resistant coating on the wear, in particular, from metal-ceramic friction materials (ФМК-8), carbon composite materials (ВВКМ) in comparison with carbon steel of grade 45. It was established that the instantaneous values of brake pads friction coefficients during the tests on inertial stand are random in nature and require the use of mathematical statistics methods for their analysis. Change nature in pads and wheels friction force instantaneous values is determined by pressing forces. It is shown that the mathematical expectation of the friction coefficients values is within the normalized permissible interval. The probability of friction coefficients instantaneous values matching into the normalized interval at a pressing force of 10kN is 0,6-0,8 for speeds up to 60 km/h, for the rest is more than 0,8 at pressing force of 20kN, the specified probability exceeds 0,85 for the entire range of speeds. With a pressing force of 20kN, the probability of values exceeding the normalized interval does not exceed 0,15, with a pressing force of 10kN, the friction coefficients exceeded the maximum normative values more than 0,35 for speeds up to 40 km/h. It has been established that the most wear-resistant pads are coated with metal-ceramic material (ФМК-8) and carbon-carbon composite materials (ВВКМ). It is shown that the described technique based on the mathematical statistic application allows to perform more in-depth analysis of freight wheeled road trains brake pads frictional properties.","PeriodicalId":33465,"journal":{"name":"Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46587117","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
Changes in modern university: challenges of today and development trends 现代大学的变迁:当今的挑战与发展趋势
Olga Petrychenko, Ievgenii Petrichenko, Igor B urmaka, Alla Vynohradova
{"title":"Changes in modern university: challenges of today and development trends","authors":"Olga Petrychenko, Ievgenii Petrichenko, Igor B urmaka, Alla Vynohradova","doi":"10.32703/2617-9059-2023-41-6","DOIUrl":"https://doi.org/10.32703/2617-9059-2023-41-6","url":null,"abstract":"Education is a process of interaction and communication among all participants, in which each of them has an impact on the outcome. Today, in the conditions of the modern world, cooperation between the teacher and the student acquires new forms and characteristics. The teacher is no longer just a source of knowledge but becomes a partner and helper for the student. The quality of communication between the student and the teacher depends on their readiness for dialogue and mutual understanding, absence of coercion and orders. A comprehensive approach to education and communication allows for a deep understanding of the processes and their improvement. Higher education institutions need to pay special attention to issues of strategic communication development, branding, and image. Clear and well-planned communication systems should be implemented at the level of structural units in order to achieve success. Providing adequate material and technical resources as well as information and communication technologies is crucial for effective use of various teaching methods and forms. However, communication between a teacher and a student should not only be about academic topics, but also about support, motivation, and personal development.","PeriodicalId":33465,"journal":{"name":"Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48933820","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: 2
Determination of the efficiency of the modernization of passenger car bodies 乘用车车身现代化效率的确定
I. Martynov, Y. Kalabukhin, A. Trufanova, S. Martynov, Y. Ostapenko
{"title":"Determination of the efficiency of the modernization of passenger car bodies","authors":"I. Martynov, Y. Kalabukhin, A. Trufanova, S. Martynov, Y. Ostapenko","doi":"10.32703/2617-9059-2023-41-5","DOIUrl":"https://doi.org/10.32703/2617-9059-2023-41-5","url":null,"abstract":"The authors determined the intensity of the increase in wear of various elements of the body. It has been established that the lower trim, the roof slope and the lower part of the side wall have the greatest wear. It is proposed to use aluminum alloys for the modernization of passenger car bodies. The advantage of such a technical solution is an increase in the corrosion resistance of the body. The reduction of tare allows to reduce the specific resistance to train movement, reduce fuel and electricity costs for train traction. To reduce operating costs using the basic provisions of the locomotive traction theory, calculations were made to determine the energy consumption for the movement of a passenger train according to the profile conditions of the real section of the regional branch of the Southern Railway by diesel and electric locomotive traction with the base variant and the variant of passenger cars with reduced tare weight) in composition of the train. It has been established that the annual savings in energy costs for the traction of passenger trains when using passenger cars with a reduced tare weight is about 1 million UAH.","PeriodicalId":33465,"journal":{"name":"Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44846817","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
Commercial and legal conditions for the organization of sea passenger transportation 组织海上客运的商业和法律条件
Iuliia Mykhailova, Anastasyia Steba, Galina Silvanskaya, Marina, V. Basevych, M. N. Bilenkyi, B. V. Burkinskyi, S. V. Glebov, Sh.M. Gurevich, B. A. Ridota, L. K. Kendall, O. A. Kybalchich, M. Kotlubai, A. M. Kotlubai, M. E. Lynskyi, G. S. Makhurenko, I. V. Morozova, H. P. Pylypenko, M. G. Lyokhovy, M.Ya, N. T. Postan, N. Primachev, V. I. Savin, J. Chekalovets, A. Codsman, A. Dessler, T. Lawrence, Plisley
{"title":"Commercial and legal conditions for the organization of sea passenger transportation","authors":"Iuliia Mykhailova, Anastasyia Steba, Galina Silvanskaya, Marina, V. Basevych, M. N. Bilenkyi, B. V. Burkinskyi, S. V. Glebov, Sh.M. Gurevich, B. A. Ridota, L. K. Kendall, O. A. Kybalchich, M. Kotlubai, A. M. Kotlubai, M. E. Lynskyi, G. S. Makhurenko, I. V. Morozova, H. P. Pylypenko, M. G. Lyokhovy, M.Ya, N. T. Postan, N. Primachev, V. I. Savin, J. Chekalovets, A. Codsman, A. Dessler, T. Lawrence, Plisley","doi":"10.32703/2617-9059-2023-41-13","DOIUrl":"https://doi.org/10.32703/2617-9059-2023-41-13","url":null,"abstract":"This article explores current trends and prospects in passenger cruise ship chartering. In light of events in recent years, including the global COVID-19 pandemic, the cruise industry has faced serious challenges, prompting companies to look for new approaches to support their operations. The article examines different chartering models, including long-term and short-term agreements, as well as the possibility of sharing vessels between operators. Two organizational and legal forms of operation of marine passenger ships are considered in more detail: liner and cruise. Formalized and provided a schematic representation of the process of interaction of the participants of sea passenger transportation in various forms of ship operation. The interaction schemes of the shipowner, the charterer and the managing agent are described. The interaction technology of the participants in the passenger transportation process is considered in the context of the types of ship charter contracts. Differences in technological processes of interaction of participants in the process of organization and provision of sea passenger transportation, distribution of responsibilities, risks, costs and income in the organization of sea passenger transportation according to various schemes of interaction of participants are given.","PeriodicalId":33465,"journal":{"name":"Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45147687","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
Grapho-analytic method of determining the minimum groove at the pivot root of symmetrical switches 确定对称开关枢轴根部最小凹槽的图形分析方法
O. Oliynyk, L. Kushmar
{"title":"Grapho-analytic method of determining the minimum groove at the pivot root of symmetrical switches","authors":"O. Oliynyk, L. Kushmar","doi":"10.32703/2617-9059-2023-41-9","DOIUrl":"https://doi.org/10.32703/2617-9059-2023-41-9","url":null,"abstract":"Switches are a barrier place in the track for setting the permissible speeds for trains on the main tracks, as they have special structural devices for branching traffic from the main track to the secondary track. Symmetrical switches have a number of advantages compared to conventional ones: with the same brand with conventional switches, symmetric ones allow significantly higher speeds for the train movement with side tracks; symmetrical switches have a shorter length with the same radii of the transfer curves; it is possible to apply crosspieces with a larger angle than in the conventional switches while preserving the length of the curve and the radius. The specified qualities of single, versatile, symmetrical switches determined their use scope. On the main transport tracks, symmetrical switches are used in sorting parks of the stations, as well as in main tracks when it is necessary to achieve increased speeds of movement on both side tracks. Symmetric switches according to the purpose and design have the significant differences from the most conventional switches, and therefore the study of these designs is important and relevant. Moreover, very few scientific works were devoted to such studies of Ukrainian railways.","PeriodicalId":33465,"journal":{"name":"Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45430565","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
Developing an efficient road-based batch freight delivery technology for intercity connections with a focus on resource conservation 开发一种高效的基于道路的城际分批货运技术,重点关注资源节约
O. Shulika, O. Orda, N. Potaman, Y. Yashchuk
{"title":"Developing an efficient road-based batch freight delivery technology for intercity connections with a focus on resource conservation","authors":"O. Shulika, O. Orda, N. Potaman, Y. Yashchuk","doi":"10.32703/2617-9059-2023-41-16","DOIUrl":"https://doi.org/10.32703/2617-9059-2023-41-16","url":null,"abstract":"In this paper, we propose the solution of the scientific and applied problem of batch freight delivery in the intercity by road in terms of system’s limited resource of the system due to the development of long-distance freight delivery technology in terms of resource savings and the observation of the established level of reliability of the freight delivery functioning of the logistics system (FDLS). For certain parameters of cargo flow with limited resources of the transport market entities involved in the delivery process, the formation of a resource-saving delivery technology allows maximising the effect of the functioning of the system of delivery of consignment cargo by road in intercity traffic. To solve the problem, we used methods of mathematical modelling, a systematic approach, optimization methods (functions of many variables), the provisions of probability theory and mathematical statistics, methods of regression analysis. For the given operating conditions of the developed logistics system, the rational technology of long-distance batch freight delivery has been determined in terms of resource savings. It will reduce overall costs by 13.9% for the given level of the readiness of FDLS.","PeriodicalId":33465,"journal":{"name":"Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44251866","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
Fuel options for the future: a comparative overview of properties and prospects 未来的燃料选择:性能和前景的比较概述
O. Petrychenko, M. Levinskyi, D. Prytula, A. Vynohradova
{"title":"Fuel options for the future: a comparative overview of properties and prospects","authors":"O. Petrychenko, M. Levinskyi, D. Prytula, A. Vynohradova","doi":"10.32703/2617-9059-2023-41-8","DOIUrl":"https://doi.org/10.32703/2617-9059-2023-41-8","url":null,"abstract":"As the maritime industry seeks to reduce its impact on the environment, the search for alternative fuel options is becoming increasingly important. Various fuel options are being studied, including biofuels, hydrogen, and ammonia, which are considered to be more environmentally friendly than traditional fuels extracted from the Earth's depths. The choice of fuel depends on various factors, including the size, speed, and distance of the ship, as well as the availability and cost of fuel. In the future, a combination of different fuel options may be necessary to achieve emission reduction goals. This article compares different alternative fuel types for ships, including low-sulfur fuel, LNG, electricity, methanol, hydrogen, and ammonia. Research shows that low-sulfur fuel is expensive but still cheaper than LNG, and the process of transitioning a ship to this type of fuel is relatively simple. LNG is the most expensive type of fuel and requires a complete overhaul of the ship's fuel system, which reduces its profitability. The article provides a table comparing the properties of different fuel types and concludes that methanol is likely to be the most promising alternative fuel in the near future.","PeriodicalId":33465,"journal":{"name":"Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46215751","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
FEATURES OF CREATING MANAGEMENT ACCOUNTING OF THE ENTERPRISE BASED ON CLOUD TECHNOLOGIES 基于云技术创建企业管理会计的特点
Iryna Kovova
{"title":"FEATURES OF CREATING MANAGEMENT ACCOUNTING OF THE ENTERPRISE BASED ON CLOUD TECHNOLOGIES","authors":"Iryna Kovova","doi":"10.32703/2664-2964-2023-53-74-81","DOIUrl":"https://doi.org/10.32703/2664-2964-2023-53-74-81","url":null,"abstract":"This article is devoted to the application of cloud technologies in the management accounting automation system at enterprises. The author considered the terminology of \"cloud\" and \"cloud technologies\" and adapted the definition of \"cloud management accounting technology\" as a technology that allows remote processing and storage of data for thepurpose of making management decisions and managing an economic object. The main advantages of using cloud technologies in management accounting were systematize. The advantages such as a business scaling and its information security, communication speed and data access, backup, update and administration of cloud technologies and databases. In this article, the author singles out specific tasks of management accounting that affect the development and use of information technologies in its automation. The tasks such as: timely provision of information to officials in order to make management decisions for each group of information users; provision of real, timely and comprehensive information about the object of management; provision of a wide range of modern tools for analysis and management decision-making. The issue of processing accounting information in the clouds and setting up communication between the internal and external environment is covered. The author also defined the procedure for processing accounting information based on cloud technologies, which consists of four gradual stages.The author has defined the features of building management accounting of the enterprise based on cloud technologies. The features among which are: taking into account the range of users for whom the management cloud of the enterprise will be available; determination of a specific list of management tasks that can be automated on the basis of cloud technologies; selection, in accordance with the first two features, of a specific list of cloud tools","PeriodicalId":33465,"journal":{"name":"Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81366314","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
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