Наукові публікації та патенти в рамках виконання держбюджетних науково-дослідних робіт 2020 р.

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A New Fastener To Ensure The Reliability Of A Passenger Car Body On A Train Ferry.
(2020) Lovska, A.; Fomin, O.
To ensure the strength of the passenger car bodies during transportation on train ferries, it is proposed to mount fastening elements of chain binders on the body bolster beams. The principle of such an element is based on the hydraulic damper operation. The mathematic modelling was conducted in order to determine the dynamic loading on a passenger car body during sea transportation. The study established that the improvements mentioned made it possible to reduce the dynamic loading on the body during sea transportation by 30% in a comparison with that of a typical fastening scheme. The strength of an improved passenger car body was calculated. The maximum equivalent stresses in the body structure accounted for about 120MPa, i.e., they did not exceed the admissible values. The conducted research may contribute to ensuring the required strength of passenger car bodies during train ferry transportation, thus leading to a higher operational efficiency of train ferry transportation within the international transportation.
Adherence to legal culture as a component of the regional industrial enterprises’ corporate innovation management while ensuring their sustainable development.
(2020) Klius, Y.; Kotova, L.; Ivchuk, Y.; Skupinskyi, O.
The article is to determine the role of the compliance culture as a part of the regional industrial enterprises’ corporate innovation management while ensuring their sustainable development. Any enterprise, operating in a market economy, aims to maximize profits as its main internal goal. Effective innovative development is an objective necessity for sustainable economic growth. The main goal of the innovative activity of enterprises or organizations can be designated as obtaining a certain number of innovations in the form of new products, technologies, raw materials, methods of organization and management with certain features. The formation of new and efficient innovation management systems by means of straight-line management is of great importance for industrial enterprise’s effective development management. The creation of new and efficient systems of management of innovation activity to direct it into an effective path is greatly important for effective development management of the industrial enterprise. Therefore, the innovation management corporate system creation and the study of its role in the effective development of the enterprise is extremely relevant.
Choice and Assessment of a Technique of Planning in Management of Production Resources of the Rural Enterprises.
(2020) Ovcharenko, I.; Bogdanov, R.; Prus, N.; Koreniev, E.
The relevance and problem of a research is caused by need of the choice of theoretical and methodical base of reforming and improvement of planning of production activity of the rural enterprises. Research purpose is to assess a degree of quality of planning of activity of the agricultural enterprises during the different periods of time when not only different techniques of planning were applied, but also there was respectively a different ideology of process of planning. Being based on conclusions of the carried-out analysis, it is possible to establish what methodical approaches have the right for existence further, taking into account improvement. Method of a research is the comparative analysis of rejections of actual data from planned data on two groups of indicators. Results: considerable differences as planning on two groups of indicators are revealed, trends of their behavior, which demonstrate imperfection of all technique of production planning, but not techniques of planning of the analyzed indicators or objects of a research are established. It is offered to refuse a standard method of planning of factorial indicators and to replace it with method of expert evaluations.
Clarification of features of the wheel movement with a perspective constructive scheme on a rail
(2020) Mikhailov, E.; Semenov, S.; Kliuiev, S.; Dižo, J.; Blatnický, M.; Gerlici, J.; Harušinec, J.; Kovtanets, M.
The article presents the continuation of studies of the features of the wheel movement the traditional and perspective constructive scheme on a rail. Unlike the traditional design, the perspective constructive scheme of the wheel allows independent relative rotation of the support surface wheel and of its guide surface (flange) relative to their common axis of rotation. Previous authors’ works did not take into account the influence of the level of slippage in the main contact of the wheel with the rail on the value of the slippage rate in its flange contact. This article further examines the influence of this factor for both wheel designs. The results of the presented studies confirm the possibility of reducing slippage in the flange contact with the rail for a wheel of a promising design scheme in comparison with a traditional wheel. Reducing the power of friction forces in the contact of the wheel flange of a promising design scheme will reduce the resistance to movement of such a wheel along the rail, especially in curved track sections.
Concept of freight wagons made of round pipes.
(2020) Fomin, O.; Lovska, A.
The purpose of the book is to highlight the results and features of the research carried out by the authors on the dynamics and strength of the main types of freight wagons, as well as tank containers made of round pipes under the main operating conditions of loading. Theoretical provisions, methodological foundations and practical solutions for the implementation of round pipes as bearing elements of bodies of the main types of wagons and tank containers are presented. The monograph is intended for scientific and technical specialists, whose activities are related to the design and research of the mechanics of structures of railway wagons, including scientists, designers, researchers, doctoral students and graduate students. Also, the results presented in the monograph may be of interest to specialists, whose activities are related to the design of tank containers. The monograph can be used as a teaching aid for undergraduates and bachelors of relevant specialties
Defining patterns in the longitudinal load on a train equipped with the new conceptual couplers.
(2020) Fomin, O.; Lovska, A.; Kovtun, O.; Nerubatskyi, V.
Determination of residual resource of flat wagons load-bearing structures with a 25-year service life.
(2020) Fomin, O.; Vatulia, G.; Horbunov, M.; Lovska, A.; Píštěk, V.; Kučera P.
The article determines the residual resource of flat wagons load-bearing structures with a 25-year service life. For this purpose, field studies of the technical condition of the loadbearing structures of flat wagons based on the wagon depot of the Foundation of the Southern Railway branch of JSC “Ukrzaliznytsia” were carried out. The flat wagon of model 13-401 was chosen as the subject. It is established that the design service life of the load-bearing structures of the studied flat wagons, taking into account the extension of their operation is not less than 18 years. The strength of the load-bearing structure of the flat wagon in the environment of SolidWorks Simulation (CosmosWorks) software by the finite element method is calculated. It is established that the maximum equivalent stresses occur in the zone of interaction of the spine beam with the pivot be equal to 337.5 MPa. Therefore, the strength of the load-bearing structure of the flat wagons is provided. The estimation of the course of the flat wagons is determined. The research was carried out in the vertical plane during the movement of the butt rail track. The calculation was performed in the MathCad software environment by the Runge- Kutta method. The assessment of the wagon is "excellent". The conducted researches will promote increase of efficiency of combined transportations in the international communication and strengthening of foreign economic positions of Ukraine in the market of transport services.
Determination of the regularities of the covered wagon supporting structure dynamic loading when conducting fire from it in the horizontal plane.
(2021) Fomin, O.; Lovska, A.; Gerlici, J.; Fomina, Yu.; Fedosov-Nikonov, D.; Prokopenko, P.
A study of the supporting structure dynamic loading of a covered wagon for the military equipment transportation and for firing has been carried out. A mathematical model has been drawn for this purpose, taking into account the vertical and angular displacements relative to the longitudinal axis (side rolling) of the wagon supporting structure when firing. Accelerations as the components of the dynamic load acting on the wagon supporting structure have been determined. It was found that the accelerations acting on the wagon supporting structure in the vertical plane were about 6.0 m/s2 (0.6 g). In the horizontal plane, the accelerations were 2.6 m/s2 (0.26 g). That is, the wagon movement can be assessed as “satisfactory”. To reduce the wagon dynamic loading during the conduct of fire, it is proposed to install elastic vibration dampers under the support sectors. In this case, the horizontal acceleration was about 2 m/s2 (0.2 g). Taking into account the proposed technical solutions, the wagon dynamic load is reduced by about 25% in comparison with the case of the rigid interaction of the sector with the frame. The strength analysis of the covered wagon bearing structure has been carried out. It was found that the maximum equivalent stresses are concentrated in the area of the front stops and are about 315 MPa. The conducted research will contribute to the creation of recommendations for the design of covered wagons for the military equipment transport and for firing, as well as to increase the efficiency of the railway transport operation..
Determining the dynamic loading and strength of the bearing structure of a covered wagon when firing from it.
(2020) Fomin, O.; Lovska, A.; Kudelya, V.; Smyrnova, I.
The bearing structure of a covered rail wagon has been improved to enable firing from it at motion. The covered wagon of model 11–217 was chosen as a prototype. To enable firing in the vertical plane, it has been proposed to use a sliding roof, which consists of shutters that move by means of a pneumatic or hydraulic drive. To accommodate military equipment inside the covered wagon, its frame is equipped with supporting sectors. Mathematical modeling was performed in order to determine the dynamic load on a covered rail wagon when firing from it. The mathematical model was solved in the Mathcad software package. We have established the dependence of the accelerations of the bearing structure of a covered rail wagon on the recoil force induced by the combat equipment that it hosts. It has been found that in order to maintain the dynamics indicators within acceptable limits, combat equipment should have a maximum recoil at a shot of about 3.2 kN. The maximum accelerations that act on the bearing structure of a covered wagon in a vertical plane are about 6 m/s2. In the zones of interaction between the body and bogies, the maximum accelerations are about 9.5 m/s2 and the accelerations of bogies are 10 m/s2. To reduce the dynamic load on the bearing structure of a covered rail wagon, it has been proposed to use a viscous connection between the supporting sectors and frame. We have determined the dependence of accelerations on the coefficient of viscous resistance between the supporting sectors and the bearing structure of a wagon. It has been established that taking into consideration the use of a viscous connection between the supporting sectors and frame makes it possible to reduce the dynamic load on a wagon at least by 15 %. The basic indicators of strength for the bearing structure of a covered rail wagon when firing from it have been determined. We have derived the dependence of the maximum equivalent stresses in the bearing structure of a covered wagon on the recoil force of combat equipment. The maximum equivalent stresses at a recoil force of 3.2 kN arise in the console part of the girder of a covered wagon and are about 300 MPa. The maximum displacements were registered in the area where the front stops of the auto-coupling are arranged; they are equal to 2.9 mm. The maximum deformations amounted to 6.98∙10-3. Modal analysis of the bearing structures of a covered rail wagon has been carried out. It has been determined that the values of the oscillation natural frequencies are within the permissible limits. Our study will contribute to the construction of innovative rolling stock for the transportation of military equipment and for firing at motion
Development of a Calculation Basis for the Goals and Objectives of Innovation Management at Industrial Enterprises in the Context of Post-Conflict Transformation.
(2021) Klius, Y.; Ivchenko, Y.; Rozmyslov, A.; Fatalov, V.
Innovation management objectives completion phases at the industrial enterprise were developed. At the first phase a hierarchy of the corporate goals is formed. It is based on the expert and creative decision-making methods for the areas of the company's activity (production area, managerial - human resource management, financial, marketing, information-technological) and management levels (strategic, tactical, operational). The expert assessments in the second phase identify the initial goals of the innovation management system. In the third phase the relationship between goals and existing innovations in the corporation are defined. At this stage, a system of innovation management goals is formed. The proposed structure and method for forming an innovation corporate base consisting of two modules (the individual and group innovation bases), the basis of which consists of a set of job assignments and corresponding to each job assignment a combination of individual and group innovations or knowledge about them. Each task corresponds to a specific goal of managing innovation. The economic impact of introducing an integrative approach to innovation management in industrial enterprises is calculated.
Dynamic Load and Strength Determination of Carrying Structure of Wagons Transported by Ferries.
(2020) Lovska, A.; Fomin, O.; Píštěk, V.; Kučera, P.
A rapid development of economic relations between states has required an introduction of combined rail/ferry transportation. A feature of this type of transportation is the possibility of wagons traveling by sea on specially equipped ships—railway ferries. However, the transportation of wagons by sea is accompanied by damage to their structures. This follows from the fact that the wagons are not adapted to this type of transportation. In addition, the design of wagons does not consider the loads that can act on them during transportation by sea. In this connection, it is important to study the dynamic loading and strength of wagons during their transportation by sea. The current work investigated into dynamic load on the carrying structure of wagons transported by ferries using mathematical and computer modelling and defined accelerations on the wagon body. The adequacy of the models was checked with an F-test. The results of strength calculation for the carrying structure of a wagon made it possible to conclude that a typical fixation diagram does not provide the admissible range of strength parameters. The current work proposed an improved fixation diagram for cars on the deck with the viscous binder. The solution was substantiated by the results of the mathematical modelling of dynamic forces, strength, and stability of the carrying structure of a wagon on the deck. The results of the work will contribute to the creation of recommendations for the transportation of wagons on ferries. The research can contribute to safe transportation of wagons by ferries, and higher e ciency of the combined transportation
Effective Mistuning Identification Method of Integrated Bladed Discs of Marine Engine Turbochargers.
(2020) Píštěk, V.; Kučera, P.; Fomin, O.; Lovska, A.
Radial turbine and compressor wheels form essential cornerstones of modern internal combustion engines in terms of economy, e ciency and, in particular, environmental compatibility. As a result of the introduction of exhaust gas turbochargers in the extremely important global market for diesel engines, higher engine e ciencies are possible, which in turn reduce fuel consumption. The associated reduced exhaust emissions can answer questions that results from environmentally relevant aspects of the engine development. In shipping, the international Maritime Organisation (IMO) prescribes the step-by-step reduction of nitrogen oxide and other types of emissions. To reduce these emissions, various systems are being developed, in which turbochargers are an important part. The requirements for the reliability and service life of turbochargers are constantly increasing. Turbocharger blade vibration is one of the most important problems to be solved when designing the rotors. In the case of real rotors, so-called mistuning arises, which is a slight deviation of the properties of the individual blades from the design parameters. The article deals with an e ective method of mistuning identification for cases of integrated bladed discs of marine engine turbochargers. Unlike approaches that use costly scanning laser Doppler vibrometers, this method is based on using only a simple laser vibrometer in combination with a computational model of the integrated bladed disc. The added value of this method is, in particular, a significant reduction in the cost of laboratory equipment and a reduction in the time required to obtain the results.
Establishing patterns in the dynamic loading on the body of a semiwagon with an elastic middle part of the girder beam.
(2020) Fomin, O.; Lovska, A.; Medvediev, I.; Shatkovska, H.
To reduce the dynamic loading and prolong the service life of a semi-wagon's girder beam by improving its fatigue strength, it has been proposed to improve its design. A special feature of the girder beam is that its middle part (the distance between the rear supports of auto-couplings) consists of a U-shaped profile, covered with a horizontal sheet above which an I-beam is located. Elastic elements are placed between the horizontal part of the U-shaped profile's shelf and the sheet. Mathematical modeling was performed to substantiate the proposed technical solution. A mathematical model has been constructed describing the fluctuations of the bouncing wagon. It has been established that the maximum vertical acceleration of the body is about 1.8 m/s2 (0.18 g), and of the bogie ‒ about 9.0 m/s2 (0.9 g). Based on our calculations, we can conclude that a wagon's movement is assessed as "excellent". In this case, the use of the girder beam with elastic links makes it possible to reduce the dynamic load on a wagon, in comparison with the prototype, by almost 35 %. The main indicators of the strength of the improved load-bearing structure of a wagon have been determined. The maximum equivalent strains occur, in this case, in the upper horizontal sheet of the girder beam, and are 136.0 MPa, which are lower, by 20 %, than those of the prototype wagon. The results of the modal analysis of the load-bearing structure of a semi-wagon taking into consideration the improvement measures have demonstrated that their natural frequencies of oscillations are within the permissible limits. Our research could help reduce the dynamic loading on the load-bearing structures of wagons in operation, as well as design the innovative structures of rolling stock
Experimental study of temperature stabilization process in tribological contact of brake friction pairs under the impact of forced cooling
(2020) Gorbunov, M.; Prosvirova, O.; Kovtanets, M.
Experimental study of the limit-maximum adhesion coefficient
(2020) Gorbunov, M.; Kovtanets, M.; Kovtanets, T.
Impact of decentralization on sustainable development of the newly created amalgamated territorial communities in the regions of Ukraine.
(2020) Halhash, R.; Semenenko, I.; Bilous, Y.; Burko, I.
This article analyses the reform of decentralization in Ukraine and its role in the sustainable development of regions and newly created amalgamated territorial communities (ATCs). The reasons of the reform's implementation and the problems connected with the local management are specified. The study of foreign experience in reforming the administrative and territorial system has made it possible to draw conclusions about the effectiveness of decentralization as an instrument of change. With the beginning of the reform in Ukraine, the processes involving citizens' participation in managing sustainable development of the regions and the ATCs became more active. The analysis of financial decentralization in Ukraine showed the positive dynamics in local budgets' revenues. The development of a new governance model in a community implies involvement of the civil society in management and allocation of local budgets. The participatory budget is shown as a modern and effective instrument of local democracy. The advantages and the main effects of the participatory budgeting in ATCs for the purpose of their sustainable development were defined.
Innovative forms of realization of regional social policy by organizing public dialogue and communication in conditions of post-conflict transformation in Eastern Ukraine.
(2020) Halhash, R., Semenenko, I., Ovcharenko, I., Borova, G.
The current socio-economic situation in Eastern Ukraine, complex processes of economic recovery, internal displacement cause numerous conflicts between local and displaced population and institutions. In these circumstances the issues of implementation of effective regional social policy instruments, integration of internally displaced persons into local communities, strengthening social cohesion and peacebuilding become important. The purpose of the article is to substantiate innovative forms of implementation of regional social policy by organizing public dialogue and communication in conditions of post-conflict transformation in Eastern Ukraine, which would ensure sustainability of conflict resolution. The article shows the experience of implementing the results of experimental studies on organizational support for interaction of institutions on conflict prevention and resolution in the project "Geoinformation system for monitoring, analysis, assessment and resolution of conflicts in communities". The essence, basic principles, components and tasks of the geoinformation system, which is realized through creation of the online resource and the network of regional experts working under support of the international community, were presented.
Innovative risks of introducing advanced technical solutions in transport
(2020) Gorbunov, M.; Nozhenko, V.; Kovtanets, M.; Porkuyan, O.
This article contains the analysis of possible investment ways for the development of industrial technologies on the example of railway transport and the associated decision-making process. A risk assessment method was used in this study when introducing innovative technical solutions for improving friction interaction in a two-point «wheel-rail» contact, which is based on the Monte Carlo method. The result of simulation modeling is forecasting of the most and least risky technical solutions for introducing them in railway transport and reducing such risks.
Prerequisites for Successful Regulation of Regional Investment Processes.
(2020) Ovcharenko, I.; Morhachov, I.
The purpose of this work is to test and evaluate the theoretical and methodological approach of objective selection of effective investment objects (mainly shares) on the stock market without the presence of insider information in order to improve the regulation of regional investment processes. The article considers the methodological and theoretical approach to optimizing the investment portfolio of securities. The positive qualities and disadvantages of this methodology are clarified. The practical use of this approach is shown on the example of the US stock market. An algorithm for applying the appropriate methodology based on a step-by-step assessment of investment performance by sectors (industries) to individual companies, taking into account the growth rate of the stock index ”s&P-500”, is proposed. The use of the presented theoretical and methodological approach is justified for regulating regional investment processes in order to increase the results of regional investment funds and other subjects of regional investment activity.
Research of stability of containers in the combined trains during transportation by railroad ferry.
(2020) Fomin, O., Lovska, A., Pistek, V., Kucera, P.; Fomin, O., Lovska, A., Pistek, V., Kucera, P.; Fomin, O., Lovska, A., Pistek, V., Kucera, P.; Fomin, O., Lovska, A., Pistek, V., Kucera, P.
The article presents results of computational modelling of containers dynamic load during transportation as a part of trains of intermodal transport on a railway ferry. The computational models were developed which account the movement of the container with regard to the frame of the flat wagon while moving of the railway ferry. It was assumed that there is no movement of the flat wagon with regard to the deck, since these movements were limited by fastening means. Attention was also paid to the movement of liquid bulk cargo in the boiler when studied the dynamic load of the tank container. The obtained acceleration rates, as components of the dynamic loads acting on the container, were accounted while determining the containers stability coefficient with regard to the flat wagons. The railway ferry heeling angles which ensure the stability of the containers were determined. The researches will ensure safety of transportation of containers as a part of trains of intermodal transport on a railway ferry, as well as increase the efficiency of operation of intermodal transport in the international transport.

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