scholarly journals Analysis of the Loading on an Articulated Flat Wagon of Circular Pipes Loaded with Tank Containers

2021 ◽  
Vol 11 (12) ◽  
pp. 5510
Author(s):  
Oleksij Fomin ◽  
Juraj Gerlici ◽  
Alyona Lovska ◽  
Kateryna Kravchenko
Keyword(s):  
Modal Analysis ◽  
Weld Joint ◽  
Strength Calculation ◽  
Rolling Stock ◽  
Railway Transport ◽  
Foam Aluminum ◽  
Bottom Section ◽  
Circular Pipes ◽  
Oscillation Frequencies ◽  
Operational Modes

This research is concerned with the use of double walls filled with foam aluminum for an open wagon to decrease loading during operational modes. The research presents the strength calculation for the frame of a wagon with a consideration of the engineering solutions proposed. It was found that the maximum equivalent stresses appeared in the bottom section of the center sill behind the back support; they amounted to about 290 МPа and did not exceed the allowable values. The maximum displacements were in the middle parts of the main longitudinal beams of a section, and they amounted to 8.8 mm. The research also presents the strength calculation for a weld joint in the maximum loaded zones of the frame of a wagon and reports the results of the modal analysis of the frame of the improved wagon. It was found that the oscillation frequencies did not exceed the allowable values. The results of the research may be useful for those who are concerned about designing innovative rolling stock units and improving the operational efficiency of railway transport.

scholarly journals Research into the Strength of an Open Wagon with Double Sidewalls Filled with Aluminium Foam

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3420
Author(s):  
Oleksij Fomin ◽  
Mykola Gorbunov ◽  
Juraj Gerlici ◽  
Glib Vatulia ◽  
Alyona Lovska ◽  
...  
Keyword(s):  
Aluminium Foam ◽  
Strength Calculation ◽  
Rolling Stock ◽  
Railway Transport ◽  
Middle Section ◽  
Dynamic Stresses ◽  
Critical Oscillation ◽  
Oscillation Frequencies ◽  
Operational Modes ◽  
Bearing Structure

The research is concerned with the use of double walls filled with aluminium foam for an open wagon in order to decrease the dynamic stresses during the operational modes. The research presents the strength calculation for the bearing structure of an open wagon with consideration of the engineering solutions proposed. It was found that the maximum equivalent stresses appeared in the bottom section of the centre sill behind the back support; they amounted to about 315 MPa and did not exceed the allowable values. The maximum displacements were detected in the middle section of the centre sill and amounted to 9.6 mm. The maximum deformations were 1.17 × 10−2. The research also presents the strength calculation for a weld joint in the maximum loaded zones of the bearing structure of an open wagon and gives the results of a modal analysis of the bearing structure of the improved open wagon. It was found that the critical oscillation frequencies did not exceed the allowable values. The results of the research may be useful for those who are concerned about designing innovative rolling stock units and improving the operational efficiency of railway transport.

Coordination of technology of railway operation of the Republic of Tajikistan and organization of railways in international traffic

2018 ◽  
Vol 77 (4) ◽  
pp. 211-217 ◽  
Author(s):  
P. N. Pulatov
Keyword(s):  
Rolling Stock ◽  
Railway Transport ◽  
Transport Services ◽  
Railway Infrastructure ◽  
External Conditions ◽  
The Republic ◽  
Railway Operation ◽  
Required Quality

Current geopolitical and economic conditions for the functioning of railway transport in most post-Soviet states are such that it is extremely difficult to provide required quality of transport services and break-even operations at high expenses for maintaining the railway infrastructure and rolling stock. Dynamics of transportation of the Tajik Railway (TSR) is shown, which displays that most of its sections are classified as low-intensity ones. The paper proposes methodical principles, setting and qualitative analysis of the task of rationalization of operational work and organization of car flows for international transportation, taking into account the specifics of the Tajik Railway. There is a problem of complex maintenance of the efficiency of operational work in modern conditions based on the synthesis of the tasks of self-management (rational internal operational technology of the Tajik Railway) and coordination tasks (technological interaction with railway administrations of other states). Author substantiated the necessity of solving this problem. Proposed classification of technological restrictions and controlled variables in the performance of transport takes into account methods for changing external conditions for the functioning of the railway landfill and methods for increasing internal efficiency of its operation. The search for the solution of the problem involves direct search of variants along its ordered set with clipping of groups of variants that do not correspond to constraints, with the subsequent finding of compromise control over a set of effective alternatives.

scholarly journals Determining the Rational Motion Intensity of Train Traffic Flows on the Railway Corridors with Account for Balance of Expenses on Traction Resources and Cargo Owners

2019 ◽  
Vol 20 (3) ◽  
pp. 215-228 ◽  
Author(s):  
Tetiana Butko ◽  
Mykhailo Muzykin ◽  
Andrii Prokhorchenko ◽  
Halyna Nesterenko ◽  
Halyna Prokhorchenko
Keyword(s):  
Genetic Algorithm ◽  
Mathematical Model ◽  
Reference Station ◽  
Limited Resources ◽  
Rolling Stock ◽  
Traffic Flows ◽  
Railway Transport ◽  
Real Coded Genetic Algorithm ◽  
Cargo Transportation ◽  
Destination Point

Abstract The article proposes a method for determining the rational motion intensity of specific train traffic flows on railway transport corridors with account for balance of expenses on traction resources and cargo owners. A mathematical model based on stochastic optimization is developed, which allows to optimize, in the conditions of risks, the interval between trailing trains on the railway lines taking into account the limited resources of the traction rolling stock, the capacity of the stations and freight fronts at the cargo destination point. Solving this mathematical model allows to find a balance between the expenses for movement of train traffic flows from different railway lines to their terminal reference station and the expenses of a consignee, subject to the limitations of the technological logistics chain in cargo transportation. For the solution of this mathematical model, a Real-coded Genetic Algorithm (RGA) was used.

scholarly journals Digitization in Rail Transport

2020 ◽  
Vol 64 (188) ◽  
pp. 137-148
Author(s):  
Janusz Poliński ◽  
Krzysztof Ochociński
Keyword(s):  
Customer Service ◽  
Traffic Management ◽  
Transport Infrastructure ◽  
Rolling Stock ◽  
Railway Transport ◽  
Railway Traffic ◽  
Railway Industry ◽  
Operations And Maintenance ◽  
Trained Staff

Digital transformation in the railway industry is an important element in the development of railways and should benefit commuters, railway operators, infrastructure managers and rolling stock manufacturers. The process of digitization applies to two domains, i.e. customer service and railway companies’ operation. This paper aims to present previous eff orts regarding the use of digital technologies in customer relations and in the field of operations and maintenance, which translates into the quality of services provided. This paper highlights important concepts of this domain with respect to passenger and freight transport, infrastructure, railway rolling stock and railway traffic management. It is also argued that the process of digitization needs properly trained staff . Examples of innovative initiatives of Polish and European railway companies are covered. Keywords: railway transport, digitization, digitization of the railways

scholarly journals Consideration of quality change of railway transport maintenance operations in managing costs of goods transport

2018 ◽  
Vol 239 ◽  
pp. 03005
Author(s):  
Lidia Shkurina ◽  
Eugenia Maskaeva ◽  
Stanislav Maskaev
Keyword(s):  
Cost Management ◽  
Rolling Stock ◽  
Market Demand ◽  
Railway Transport ◽  
Quality Change ◽  
The Cost ◽  
The Impact ◽  
Financial Result ◽  
Freight Market

the authors reviewed the quality of operational work of railway transport in the cost management system, presented methods for assessing the impact of the quality of rolling stock on the current costs of transportation activities, considered the issues of the impact of the quality of operational work on the formation of freight market demand and of financial result of the transport company - the owner of infrastructure and traction rolling stock, represented methods of assessing financial and economic efficiency of improving the quality of operational work for the company - a participant of the freight market.

scholarly journals FORMULATING MECHANISM OF MANAGEMENT OF ECONOMICAL ACTIVITIES OF THE ROLLING STOCKS

2015 ◽  
Vol 1 (158) ◽  
Author(s):  
O. V. Dikan ◽  
D. S. Timofeev
Keyword(s):  
Control System ◽  
Economic Activity ◽  
Control Mechanism ◽  
Rolling Stock ◽  
Facilities Management ◽  
Railway Transport ◽  
Complex Approach ◽  
Structural Parts

A complex approach is formulated to the forming a mechanism of management of economic activitiesof the rolling stocks. Condition and factors of objects of management of economic activity of railway transport were identified. It was found in the domain of facilities management, perform organizational and separate units of the rolling stock and structural parts of the control system and functions, which have their control mechanism.

scholarly journals Identification of rolling stock in railway transport management

2018 ◽  
Vol 19 (6) ◽  
pp. 176-179
Author(s):  
Jarosław Moczarski
Keyword(s):  
Transport Process ◽  
Moving Objects ◽  
Computer Application ◽  
Rolling Stock ◽  
Programming Environment ◽  
Railway Transport ◽  
Analysis Techniques ◽  
Matlab Programming ◽  
Transport Management ◽  
Subsequent Identification

An important factor improving the safety of the railway transport process is the automatic recognition of the rolling stock and the transported loads. Using modern data acquisition and analysis techniques allows to identify moving objects by assessing their shape and size. For the creation of digital models of the studied objects and their subsequent identification there was developed a computer application working in Matlab programming environment. The application use the functions of designing, implementing, visualizing and simulating neural networks. The configuration of the test stand allows for carrying out experiments using analog and digital sensors.

scholarly journals THEFT OF CARGO FROM RAILWAY ROLLING STOCK: ISSUES OF QUALIFICATION AND INVESTIGATION

2019 ◽  
Vol 29 (5) ◽  
pp. 668-672
Author(s):  
M.N. Vilacheva ◽  
N.V. Yashkova
Keyword(s):  
Russian Federation ◽  
Criminal Law ◽  
Criminal Code ◽  
Criminal Case ◽  
Rolling Stock ◽  
Railway Transport ◽  
The Russian Federation ◽  
Main Factors ◽  
Definition Of ◽  
Railway Rolling Stock

The questions of qualification and investigation of theft of goods from the rolling stock are revealed. The main factors causing qualification of such crimes under articles 158, 159 and 160 of the Criminal code of the Russian Federation are investigated. The obligatory signs of crimes, such as time, place, means of commission of crime, the size of the stolen property are revealed. Reasonable conclusions are made that the qualification of theft of goods from the rolling stock of railway transport, as well as the definition of the circle of persons potentially involved in the commission of the crime, is largely influenced by the place and time of the crime, the circumstances (type of car, other features), the amount of stolen property, means of committing the crime. The analysis of the practice of qualification of thefts from the rolling stock of railway transport shows that in various investigative situations it is necessary to speak about its private varieties that will allow to qualify a crime more precisely and to organize the process of proving more effectively. It is concluded that for the most complete qualification of crimes related to the theft of cargo from rolling stock cars a thorough analysis of the circumstances that influenced the initiation of a criminal case, as well as investigative situations, is of particular relevance. Proposals were made to improve the norms of the criminal law.

scholarly journals Improvement of technology for management of freight rolling stock on railway transport

2017 ◽  
Vol 3 (3 (87)) ◽  
pp. 4-11 ◽  
Author(s):  
Tetiana Butko ◽  
Svіtlana Prodashchuk ◽  
Ganna Bogomazova ◽  
Ganna Shelekhan ◽  
Mikola Prodashchuk ◽  
...  
Keyword(s):  
Rolling Stock ◽  
Railway Transport
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