• Home
  • Sergey V. Myamlin
Sergey V. Myamlin

Sergey V. Myamlin

Professor

About

71
Publications
7,774
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
289
Citations
Citations since 2017
8 Research Items
194 Citations
2017201820192020202120222023010203040
2017201820192020202120222023010203040
2017201820192020202120222023010203040
2017201820192020202120222023010203040
Introduction
Skills and Expertise

Publications

Publications (71)
Article
Full-text available
Failures of axle boxes of freight cars due to poor-quality repair and maintenance can be reduced by applying diagnostic methods and tools. Therefore, the study carried out a study of the influence of diagnostics of axle boxes of freight cars on traffic safety of the railway transport. To reduce the magnitude of risks arising from failures of axle b...
Data
Викладено базові положення з динаміки та міцності вантажних вагонів. Розглянуто процедуру визначення моментів інерції мас рухомого складу, геометричних характеристик поперечних перерізів плоских фігур. Особливу увагу приділено розрахунку на міцність елементів конструкцій рухомого складу. Виконано аналіз конструкцій різних типів вантажних вагонів. П...
Cover Page
Full-text available
The main provisions on the dynamics and strength of freight cars are stated. The procedure for determining the moments of inertia of the rolling stock masses, the geometric characteristics of the cross-sections of flat figures is considered. Particular attention is paid to strength calculations of rolling stock structural elements. The analysis of...
Book
The main provisions on the dynamics and strength of freight cars are stated. The procedure for determining the moments of inertia of the rolling stock masses, the geometric characteristics of the cross-sections of flat figures is considered. Particular attention is paid to strength calculations of rolling stock structural elements. The analysis of...
Conference Paper
Full-text available
Roller rigs are laboratory devices enabling to study various phenomena in the field of railway vehicles dynamics and the wheel-rail contact. The main benefits of roller rig experiments are high controllability, repeatability and flexibility of experiment setup and usually also lower costs compared to the field tests. One of the goals of joint coope...
Conference Paper
Full-text available
The article deals with the solution of the contact problem of load car axle-box cassette bearings. A model of finite elements of axle-box tensely deformed state is presented. The problem has been solved by the combination of the finite elements method and the generalized power method. Due to the results, we can define mechanical properties.
Article
Full-text available
Purpose. To determine the dynamic qualities of the main locomotives that characterize safety traffic along straight and curved track sections in the entire range of operational speeds, it is necessary to perform a whole range of studies. One of the necessary conditions for a qualitative improvement of the traction rolling stock of railways is the d...
Conference Paper
Full-text available
During manufacturing of diesel locomotives, their basic parameters must be adapted to the requirements of that specific environment. One of the central issues is the choice of bogies. The article present the examples of selecting a bogie by using multi-criteria optimization methods. The methods are adapted for Siemens bogies models SF1, SF2, SF3 an...
Article
Full-text available
Purpose. The work is devoted to the study of horizontal oscillation and the assessment of the motion stability of a single wheelset with independent wheel rotation, and to the comparison of stability indicators of the typical wheelset and the wheelset with independent wheel rotation. This is connected with the necessity to increase traffic speed of...
Article
Full-text available
Purpose. The vast majority of passenger car fleet of «Ukrzaliznytsia» have cars with outlasted service life. In this regard there is a need to find methods to justify the extending useful life of passenger cars and to assess the car body frame residual life conformity to the operating load for the next life time. Methodology. The selection of cars...
Article
Full-text available
Purpose. Scientific paper is aimed at disclosing the existing problem of the «reliability» definition and provides a reasoned definition of the term. The study assumes the development of a complex that includes the methodology and appropriate terminology that will be true. Methodology. Currently there is reliability theory in the special case of th...
Article
Full-text available
Purpose. The scientific work supposed: 1) the search of accounting ways of the local corrosion damages influence to the car design, that were expired the appointed time, for the purpose of renewal; 2) experimental verification of conformity of material construction requirements of the normative documentation and justification for extending the serv...
Article
Full-text available
Dnipropetrovsk national university of railway transport named after academician V. Lazaryan gives main attention to student’s scientific-research projects, because rail engineer must be not only well qualified but wise and cultural man. He must have possibility to realize his intellectual opportunities and approves personal features.
Article
Full-text available
The problem of noise reduction in railway transport occupies a special place among the most important problems of the technosphere. Modern techniques for measuring and analyzing acoustic parameters are considered. Conceptual approaches to predicting noise characteristics and constructing noise maps of railways are proposed.
Article
Full-text available
Purpose. The paper is devoted to dynamic characteristics evaluation of the locomotive with prospective design and determination the feasibility of its use on the Ukrainian railways. Methodology. The methods of mathematical and computer modeling of the dynamics of railway vehicles, as well as methods for the numerical integration of systems of ordin...
Article
Full-text available
Purpose. The study involves the analysis of stages, formation forms and methods of the scientific potential of Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan (DNURT) and contribution of its staff in the development of national and world science. Methogology. The use of historical and chronological, compa...
Article
Full-text available
Purpose. The analysis of the prerequisite appearing of the unfair competition in the market of research services to prevent raiding in science. Methodology. During the conducting of this study methods of scientific analysis and synthesis, the benchmarking method, the method of expert estimations were used. Findings. Possible methods of uncompetitiv...
Article
Full-text available
Purpose. To ensure the constantly growing volume of freight transportations it is necessary to introduce the innovation rolling stock. It should have the best technical and economic parameters in comparison with the existing fleet. Gondola car is the most popular type of railway freight car. Designs of the modern gondolas are based on many years of...
Article
Full-text available
Purpose. In this paper, it is necessary to examine the dynamic properties of the gondola car with bogies, model 18-1711 when it moves on straight and curved sections of a track. Methodology. The calculations were performed using the object-oriented programming on the program "Dynamics of Rail Vehicles" ("DYNRAIL" Myamlin S.V. registered 20.03.2003)...
Book
Full-text available
The monograph devoted to the problems of studying the impact of physical pollution on railway transport. The characteristics, as well as sources of noise, vibration and electromagnetic radiation are given, the consequences of their negative impact on the environment are considered. Permissible levels of noise, vibration and electromagnetic radiatio...
Article
Full-text available
Acting dynamic testing were done, they allowed to compare dynamic indexes of new bogie with typical construction one and results of development constructive schema of freight wagons were introduced
Article
Full-text available
The influence of friction on the dynamic load of the car using new approaches to solving the problem of predicting the dynamics of rolling stock is investigated, at a significantly updated theoretical material that covers the entire history of the theory of friction and includes the results of recent experimental studies because of the speed on the...
Article
Full-text available
The article considers the current state of the locomotives and their running parts market and outlines its further prospects
Patent
Full-text available
The overspring beam of the freight car bogie, which has a support surface for the body of the car in the form of a thrust bearing, support surfaces for the springs of the spring sets, characterized in that above the area of installation of spring sets made two platforms with holes, structurally, the horizontal shelves of the spring beam are placed...
Article
Full-text available
Purpose. With the advent of new designs of freright cars the task of designing the more modern bogies, assessment of their dynamic properties depending on the type and structure of pecularities, accounting the axle loadings, providing the dynamic and running characteristics, meeting the conditions of impact on the track, stability, and frame forces...
Article
Full-text available
Purpose. The main requirements for the design of a new generation of cars, according to the Program of rolling stock renovation, are the requirements reducing the operating costs and increasing the cost-effectiveness of their use, taking into account the achievements of scientific and technical thought. Due to the urgency of this subject the paper...
Article
Full-text available
Purpose. The purpose of work is scientifically grounded introduction of the acquired techniques into works for service life extension of the traction and motor rolling stock for industrial transport. Methodology. To achieve the purpose it was analyzed the acquired techniques for service life extension of the traction and motor rolling stock for mai...
Article
Full-text available
Purpose. Development of domestic and global transport science occurred due to the contributions of many scientists and practicing engineers. The purpose of our study is the analysis of scientific documentary legacy of YE. P. Blokhin, Doctor of Technical Sciences, Professor of Dnipropetrovsk National University of Railway Transport named after Acade...
Article
Full-text available
Purpose. To determine the dynamic qualities of the mainline freight locomotives characterizing the safe motion in tangent and curved track sections at all operational speeds, one needs a whole set of studies, which includes a selection of the design scheme, development of the corresponding mathematical model of the locomotive spatial fluctuations,...
Article
Full-text available
S u m m a r y. The work is devoted to study of friction indices influence in the "body-bogie" system in freight cars (the change of the friction coefficient in the side bearers during operation) on their basic indices-the coefficients of the horizontal and vertical dynamics, vehicle body acceleration, frame strength, and derailment stability coeffi...
Article
Full-text available
S u m m a r y. To determine the dynamic properties of the mainline freight locomotives, characterizing the safe movement on straight and curved sections of track in the whole range of operating speeds, you need a set of studies including selection of design scheme, the development of an appropriate mathematical model of spatial fluctuations of the...
Article
Full-text available
Purpose. To analyze the results of study of dynamic parameters of the tank-car model 15-1900 and gondola car model 12-1905, equipped with the bogies model 18-1711 with axle loading of 25 ton and unified according to major parts and joints with the cars of previous generation. According to results of the study to conclude about the possibility of us...
Article
Full-text available
Purpose. To research the tank train longitudinal loading during motion by track sections with changes of gradient. The trains of different length that consist of bogie tank wagons should be examined. Influence of cargo type on longitudinal loading of train during motion in concave section of track should be evaluated. Methodology. The level of the...
Article
Full-text available
Purpose. There is a need of wear process modeling in the wheel-rail system. This is related to the fact that the wear processes in this system are absolutely different in the initial and final stages. The profile change of rail and, especially, of the wheels caused by the wear significantly affects the rolling stock dynamics, traffic safety and the...
Conference Paper
Full-text available
With the development of technological processes, methods of preventing violations of industrial and environmental safety are also being improved. In this regard, the paper considers the effect of vibration frequencies of electric locomotive elements on the physiological state of the driver.
Article
Full-text available
This work is devoted to investigation of the influence from different factors of technical condition from running gears freight cars to their main dynamics indicators. Results of theoretical investigations determination of the dynamic performance of freight cars in view of the technical condition of side bearing permit to evaluate the impact of tec...
Article
Full-text available
Purpose. The railway transport plays an important role in social and economic life of the country and carries out the large containment of transportation activities. The transport industry should migrate towards innovation changes and increase its significance as an important transit subsystem on the way of renovation of both the infrastructure and...
Article
Full-text available
Purpose. To analyze the need of loans in the form they are presented today at the present stage of economic functioning. To develop a systematic group of actions in order to allow the “economic and financial” system of the country to work efficiently, irrespective of economic and financial world cataclysms. Methodology. Computer simulation model of...
Article
Full-text available
Purpose. To determine the influence of transport branch development through the state order implementation for rolling stock and infrastructure projects in the basic economic branches. Methodology. On the basis of situation and content analyses the impact of particular science branches development on improvement of transport modes is analyzed. The...
Conference Paper
Full-text available
Actuality and explanation of development of six-axle mainline locomotive ER20CF for Lithuania Railways are done. For carrying out of theoretical researches with purpose of providing safety movement, strength of constructions elements, improved dynamical characteristics, was examined some aspects of mathematical simulation of dimensional hunting of...
Article
Full-text available
The report is focused on investigation of the influence of lateral movement of freight car bogies on their basic dynamic performance. As a result of research, dependences of basic dynamic performance of freight cars from the values of angle of rotation of car body depending on the speed, and the results of theoretical studies have been obtained. Th...
Article
Full-text available
The article presents the relevance and justification of the development of a six-axis mainline locomotive for the railways of the Republic of Lithuania. The description of a design of a modern locomotive is offered. Conclusions are made on the results of operational tests and operation
Article
In work experimental researches of longevity and technical and operating parameters of diesel engine diesels are presented 10D100 with modified tribosystems. The last are instrumental in the rapid starting and decline of wear depending on time of starting, thus, such diesel practically on any speed and loading modes can be exploited without the pro...
Article
The article testifies that technical maintenance and repair terms as well as durability can be predicted accordingly to the maintenance parameters of the diesel locomotives. It is determined that fixing fuel consumption and capacity of diesel locomotives and taking in comparison with limit values allows to set a performance date for technical maint...
Research Proposal
The software package is designed to calculate the moments of inertia of the bodies of railway vehicles. This product allows you to determine the moments of inertia of cars relative to the main central axes of inertia and the position of the center of mass, both in empty and loaded states. The program provides for the possibility of accounting for v...
Data
The program provides for the possibility of accounting for various degrees of loading of wagons and various types of cargo transported by rail. The process of preparing a vehicle model is reduced to creating a list of objects, setting their parameters, which are used to calculate the values of the moments of inertia of the railway vehicle. An objec...
Data
The calculation algorithm is designed to calculate the moments of inertia of the bodies of railway vehicles. Allows you to determine the moments of inertia of cars relative to the main central axes of inertia and the position of the center of mass, both in empty and loaded states. The calculation algorithm provides for the ability to take into acco...
Article
Substantiation of six-axle mainline diesel locomotive construction for railways of the Republic of Lithuania is stated. Description of modern locomotives design is proposed. Conclusions on the results of operation tests and subsequent operation are made.
Article
Full-text available
The paper deals with singularity of inertia characteristics of rolling stock studies with a detailed analysis of their definition methods for the following use of these data while simulation of the dynamic loading. The mathematical simulation of freight cars spatial oscillations has been performed with the software package “Dynamics of Rail Vehicle...
Article
Full-text available
Innovative technological projects are suggested for cars unification within modern services requirements; as a result, the production of new vehicles are expected which will possess new characteristics and prolouged overhaul time.
Article
Full-text available
An analysis of different types of bogies influence on their basic dynamic parameters of road safety is done in the paper. The results of comparison of the theoretical research of dynamic qualities of gondola cars on different bogies are presented.
Conference Paper
Full-text available
The papers describes some methods for more exact computation of the freight wagon's inertial characteristics, that is necessary for performing more exact computer simulation of the railway vehicle dynamics. Comparison of the simulation results with the test data shows the appropriate coincidence between them that confirms the mathematical model's a...
Article
Full-text available
При изучении динамических качеств рельсовых экипажей и, особенно, грузовых вагонов, важное место при формировании исходных данных, необходимых для математического и компьютерного моделирования, занимают массовые, геометрические, инерционные характеристики. Хотя названные параметры тем или иным образом связаны между собой, особый интерес вызывают им...
Article
Full-text available
The article presents a mathematical model for assessing the real operating conditions of railway rolling stock, taking into account the situations when the wheel loses contact with rail. The obtained amplitudinal fluctuation characteristics depend on the set roughness function and the running speed of the wheel. When calculating dynamic processes,...
Article
To ensure passenger comfort as well as the durability of the components of rolling stock, it is necessary to determine the rational parameters of chassis suspension, i.e. rational relations between rigidity and vibration inhibition elements of the two stages of chassis suspension. The article describes a spatial mathematical model of a two-stage su...
Article
Full-text available
Comparison of motion safety on straight track and in curves was carried out for 18-100, Y25 and 18-781 bogies using numerical simulation. Y25 bogie had significant advantages whereas 18-100 and 18-781 bogies were very close to each other. Recommendations are given to use the construction of bogies close to Y25 for Ukrainian freight cars.
Article
The article deals with the issue of selecting the rational values of hardness in the bond of the sloping beam with the locomotive 's body in its motion in haulage and running modes. After theoretical research, it was found out that the value of hardness should not exceed 10000 kN.
Article
Full-text available
A nunber of structures of locomotive bogies of domestic and foreign manufacturers are under consideration, their special features are discussed. On the basis of comparison of technical decisions a forecast on development of the locomotive vehicle part structures is being performed.
Article
The mathematical model of space oscillations of а turnpike cargo electric locomotive with the non-tradicional scheme gear of suspension is indicated. The settlement scheme is selected, the аmоunt of degree of freedoms of а system is determined, with help of equations of the Lagrange of the second kind the differential equations of movement of а mec...
Article
Mathematical security for the research of the train longitudinal dynamics is described. The description of initial and received parameters of the train movement process is given. The example of programme complex realisation is considered as applied to the 'Driver's simulator'.
Article
Full-text available
Разработанная математическая модель пространственных колебаний грузового четырехосного вагона и программный комплекс для изучения динамики вагона при его движении по реальным вертикальным и горизонтальным неровностям пути дают возможность определить динамические качества вагона на стадии проектирования. Это позволяет оценить динамические показатели...
Article
1 Joint-stock company "Kriukov carbuiilding works", Kriukov, Ukraine; 2, 3 DIIT, Dnipropetrovsk, st. Academician V. Lazaryan 2, Ukraine Abstract. A very important stage in the design of railway vehicles for the production thereof is acceptance testing which enables to examine the compliance of all technical characteristics of the design documentati...
Article
While studying the dynamic properties of freight wagons, usually the modes of motion of wagons both, loaded and empty, i.e. in marginal states, when the wagon mass corresponds to the maximum freight mass including the tare mass, and only tare mass, are investigated. Operated on the mainline railways, semi-wagons may be loaded with different goods....
Article
The platform investigated is a specialized vehicle for the transportation of dust trays empty or loaded with scrap-iron around the territory of metallurgical enterprises. For the transportation of such freight, a design of six-axle platform was proposed. On the one side-two two-axle bogies mutually connected by a span bolster are arranged (four-axl...
Article
In connection with development of container transportations, demand sharply grew for specialized rolling stock, to the best adjusted for transportation of containers. The article is devoted the review of carriages of platforms for transportation of containers, as offered by domestic producers. Comparative description of 80-feet carriages-platforms...

Network

Cited By

Projects

Project (1)