Aleksandr Rakhmangulov
Magnitogorsk State Technical University
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Featured researches published by Aleksandr Rakhmangulov.
Open Engineering | 2016
Dmitri Muravev; Aleksandr Rakhmangulov
Abstract Currently, container shipping development is directly associated with an increase of warehouse areas for containers’ storage. One of the most successful types of container terminal is an intermodal terminal called a dry port. Main pollution sources during the organization of intermodal transport are considered. A system of dry port parameters, which are recommended for the evaluation of different scenarios for a seaport infrastructure development at the stage of its strategic planning, is proposed in this paper. The authors have developed a method for determining the optimal values of the main dry port parameters by simulation modeling in the programming software Any- Logic. Dependencies thatwere obtained as a result of modeling experiments prove the adequacy of main selected dry port parameters for the effective scenarios’ evaluation of throughput and handling capacity at existing seaports at the stage of strategic planning and a rational dry port location, allowed ensuring the improvement of the ecological situation in a port city.
Economy of region | 2014
Aleksandr Rakhmangulov; Olesya Kopylova
Currently, at the regional markets, there is a disproportion between the growing demand for transportation and logistics services and the availability of facilities needed for their implementation, which is because the high logistics costs and does not meet the strategic objectives of the country to create a common economic space. The article describes the system of market factors that have the most significant influence on the distribution of logistics facilities. Study and evaluation of potential changes in the region of logistics facility disposition are proposed to perform using simulation techniques and statistical data analysis. The article presents the engineered multivariate statistical models that control the kind and effect of correlation between socio-economic development factors of regions, as well as a simulation model, which allows to assess the dynamics of these factors and predict demand for logistics infrastructure facilities. The choice of region (subject) dislocation of the logistics center is proposed to realize by the developed technique based on the calculation of the integrated index that takes into account differences in the level of socio-economic and infrastructural development of the regions. This technique in conjunction with a simulation model is applicable to a variety of administrative and territorial levels (region, city) and allows to take into account both the current demand in the logistics infrastructure and demand dynamics. The technique given in the article can be used to assess the level of attractiveness of the Russian Federation in the development of public and private investment projects for the development of logistics infrastructure.
NAŠE MORE : znanstveno-stručni časopis za more i pomorstvo | 2017
Aleksandr Rakhmangulov; Aleksander Sładkowski; Nikita Osintsev; Dmitri Muravev
DOI 10.17818/NM/2017/3.7 UDK 656:502 502:504 Review / Pregledni rad Paper accepted / Rukopis primljen: 28. 8. 2017. Aleksandr Rakhmangulov Department of Logistics and Transportation Systems Management Nosov Magnitogorsk State Technical University e-mail: [email protected] Aleksander Sladkowski Silesian University of Technology Poland e-mail: [email protected] Nikita Osintsev Department of Logistics and Transportation Systems Management Nosov Magnitogorsk State Technical University e-mail: [email protected]
Economy of region | 2016
Aleksandr Rakhmangulov; Dmitri Muravev
This article contributes to the solution of the relevant problem of the seaport infrastructure development for the purpose of increasing the cargo turnover in the regions of seaport location as well as to improve the quality of freight traffic on the basis of the creation of container hinterlands — dry ports. The options of dry ports as the potentially effective solution to increase the cargo turnover of existing seaports, improve the timeliness of freight transportation and overcome the environmental problems of the regions of seaport location are shown. This work analyzes the transport infrastructure of the region, the cargo turnover of major Russian sea and dry ports as well as the experience of creating dry ports in the Russian Federation and abroad. The authors propose the system of parameters for dry ports, which are recommended for the assessment of seaport infrastructure development scenarios on the stage of strategic planning. The authors have developed the approach of optimal values determination of the main parameters of dry ports by simulation modeling method. The features of construction and research of the simulation models of system “seaport — dry port†in programming software AnyLogic are considered. The results of modeling experiments with a developed simulation model are provided. This model is aimed to assess the maximum estimated capacity of the existing seaport in the conditions of the increasing irregularity of cargo traffic, and also to determine the optimum parameters of the constructed «dry port». The obtained dependencies as a result of modeling experiments prove the adequacy of the selected main parameters of dry ports for the effective evaluation of the scenarios of the strengthening of carrying and estimated capacity of existing seaports on the stage of strategic planning.
Archive | 2018
Aleksandr Rakhmangulov; Aleksander Sładkowski; Nikita Osintsev; Olesya Kopylova; Natalja Dyorina
The implementation of the project “The Economic Belt of the Silk Road” and the creation of new transport links of the international communication make it important to place logistics centers on the road to the flow of freight flows in the East-West direction. The purpose of this study is to develop a methodology for assessing the variants of logistics centers location. The authors proposed the methodology and model allowing us to determine the necessity of placing logistics objects on the basis of a system analysis of transport performance indicators, infrastructural, socio-economic factors. The paper analyzed trends in international trade, reviewed existing and prospective international Euro-Asian transport corridors. The researchers systematized the factors that have the greatest impact on the transport and logistics infrastructure development and on the logistics centers location. Based on the proposed system of factors, the authors developed an assessing methodology for locating variants of logistics centers. The chapter performs the results of the attractiveness assessment of the regions for the logistics infrastructure facilities location according to the developed methodology for the conditions in the Russian Federation as in one of the countries pretending to promote cargo flows through its territory within the framework of the project “The Economic Belt of the Silk Road”.
NAŠE MORE : znanstveno-stručni časopis za more i pomorstvo | 2018
Aleksandr Rakhmangulov; Aleksander Sładkowski; Nikita Osintsev; Dmitri Muravev
DOI 10.17818/NM/2018/1.7 UDK 502/504:656 Review / Pregledni rad Paper accepted / Rukopis primljen: 31. 8. 2017. Aleksandr Rakhmangulov Department of Logistics and Transportation Systems Management Nosov Magnitogorsk State Technical University Russia e-mail: [email protected] Aleksander Sladkowski Department of Logistics and Industrial Transportation Silesian University of Technology Poland e-mail: [email protected] Nikita Osintsev Department of Logistics and Transportation Systems Management Nosov Magnitogorsk State Technical University Russia e-mail: [email protected]
Archive | 2017
Aleksandr Rakhmangulov; Aleksander Sładkowski; Nikita Osintsev; Pavel Mishkurov; Dmitri Muravev
A major direction in the development of modern world transport systems involves the concentration of freight and traffic flows within international transport corridors and transport nodes in terminals and hubs. The changing role of rail transport is taking place under these conditions. Increased structural complexity and irregularities in cargo and railcar traffic volumes have been observed, despite the higher levels of transport equipment and technology standardization, the increased container transport volumes and consequent reduction in the cost of intermodal operations, and the interaction between different modes in transport nodes. This is largely due to the increasing need for cargo owners to lower logistics and warehouse costs, which is achieved by reducing the size of freight shipments and ensuring their uniform delivery. Moreover, privatization of the railway industry in certain countries and the sale of rolling stock to operating companies have made the coordinated management of rail fleets more difficult. The demand for improved efficiency of railcar traffic volume management in the case of complex structures is especially relevant for large railway nodes, particularly the transport systems of industrial enterprises. Here, the application of traditional approaches to the management of transportation processes involving individual elements of traffic flow (trains, railcars, locomotives) and transport infrastructure (railway stations, loading areas, rail hauls) leads to additional transport costs as a result of the increased length of time that railcars are located at the railway node. The aim of this study, therefore, is to provide improved methods for the management of RTVs at complex railway nodes based on a systematic review of RTVs in conjunction with transport infrastructure and traffic control systems. The authors review the case of a systematic approach to the organization and management of railcar traffic volumes, both for mainline rail transport and at railway nodes and industrial rail transport. This study investigates the impact of irregular railcar traffic volumes on railway node functioning by applying a dynamic simulation model of the transport system of a large metallurgical enterprise. The application of the original methodology for assessing the amount of information in the operational management system for rail transportation allowed us to estimate the effect of structural complexity and railcar traffic volume irregularities on the efficiency of the dispatch control system. The authors propose a new system of parameters and indicators for assessing railcar traffic volumes, taking into account factors of complexity and irregularity, and provide a comprehensive assessment of its effectiveness for railcar traffic volume management. For this purpose, a method of dynamic optimization of these parameters (dynamic programming) is selected. The main hypothesis of the study is that improved accuracy in parameter optimization for irregular railcar traffic volumes is achieved by adjusting the duration of the base periods which constitute the optimization period in the dynamic problem. In this study we have formulated a mathematical model for dynamic parameter optimization of railcar traffic volume on the basis of base periods of variable duration, with an algorithm for model implementation as well. Experimental verification of the effectiveness of the developed model and algorithm is conducted on the constructed process-centric railway node simulation model. Three series of experiments are conducted: without railcar traffic volume optimization, and with dynamic optimization of railcar traffic volume with the application of base periods of constant and variable duration. The experimental results demonstrate increased optimization accuracy with the use of the proposed model, reducing transport costs (time of railcar traffic volume handling) at the railway node by 11% on average. For the realization of the model and algorithm, a method is proposed for their integration in information management and intellectual transport systems.
Open Engineering | 2016
Aleksandr Rakhmangulov; Dmitri Muravev; Pavel Mishkurov
Abstract The issue of operative data reception on location and movement of railcars is significant the constantly growing requirements of the provision of timely and safe transportation. The technical solution for efficiency improvement of data collection on rail rolling stock is the implementation of an identification system. Nowadays, there are several such systems, distinguished in working principle. In the authors’ opinion, the most promising for rail transportation is the RFID technology, proposing the equipping of the railway tracks by the stationary points of data reading (RFID readers) from the onboard sensors on the railcars. However, regardless of a specific type and manufacturer of these systems, their implementation is affiliated with the significant financing costs for large, industrial, rail transport systems, owning the extensive network of special railway tracks with a large number of stations and loading areas. To reduce the investment costs for creation, the identification system of rolling stock on the special railway tracks of industrial enterprises has developed the method based on the idea of priority installation of the RFID readers on railway hauls, where rail traffic volumes are uneven in structure and power, parameters of which is difficult or impossible to predict on the basis of existing data in an information system. To select the optimal locations of RFID readers, the mathematical model of the staged installation of such readers has developed depending on the non-uniformity value of rail traffic volumes, passing through the specific railway hauls. As a result of that approach, installation of the numerous RFID readers at all station tracks and loading areas of industrial railway stations might be not necessary,which reduces the total cost of the rolling stock identification and the implementation of the method for optimal management of transportation process.
Transport Problems | 2014
Aleksandr Rakhmangulov; Anatoly Kolga; Nikita Osintsev; Ivan Stolpovskikh; Aleksander Sładkowski
International Journal of Logistics Systems and Management | 2016
Dmitri Muravev; Selim Aksoy; Aleksandr Rakhmangulov; Yusuf Volkan Aydogdu