{"title":"Modern methods for calculating transport infrastructure objects for progressive collapse","authors":"P. A. Pegin, A. A. Shulgin","doi":"10.46684/2023.3.6","DOIUrl":"https://doi.org/10.46684/2023.3.6","url":null,"abstract":"Modern Russian methods for calculating transport infrastructure objects for progressive collapse have been analysed and classified. An overview of the methods implemented in the SCAD and LIRA computer systems has been made. The transport infrastructure objects of the frame scheme have been calculated for progressive collapse with the removal of the supporting element. The results of the calculation of the frame scheme, taking into account additional parameters: damping of elements; joint work of the floor and steel structure elements; physical and geometric nonlinearity have been analysed. Analytical, statistical and mathematical methods were applied. It has been established that the existing software systems have sufficient functionality for calculating transport infrastructure objects in a static, dynamic, linear and non-linear problem setting. The results of calculations performed in different computer systems show different results in dynamic and quasi-static methods. The necessity of adjusting the existing Russian building codes, taking into account the calculation procedures in modern computer systems, is revealed.","PeriodicalId":441595,"journal":{"name":"BRIСS Transport","volume":"14 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135168890","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}
{"title":"Emperor Alexander I St. Petersburg State Transport University (PGUPS); Saint Petersburg, Russian Federation","authors":"Article Editorial","doi":"10.46684/2023.3.1","DOIUrl":"https://doi.org/10.46684/2023.3.1","url":null,"abstract":".","PeriodicalId":441595,"journal":{"name":"BRIСS Transport","volume":"63 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135168720","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}
{"title":"The Mission of the Emperor Alexander I Petersburg State Transport University","authors":"T. S. Titova","doi":"10.46684/2023.3.2","DOIUrl":"https://doi.org/10.46684/2023.3.2","url":null,"abstract":"Emperor Alexander I St. Petersburg State Transport University is the only one of the universities subordinate to the Federal Agency for Railway Transport, which in 2021, among other 106 Russian universities, was awarded the basic part of the grant of the Priority 2030 program. The Priority 2030 Program, approved by the Government of the Russian Federation, concentrates resources to ensure the contribution of Russian universities to achieving the national development goals of the Russian Federation for the period up to 2030. The program is aimed at increasing the scientific and educational potential of universities and scientific organizations, as well as ensuring the participation of educational organizations of higher education in the socio-economic development of the subjects of the Russian Federation. Participation in this program opens up wide opportunities for import substitution and contributes to the university’s going beyond solving urgent problems limited exclusively by the activities of railway transport. During 2021–2022, Emperor Alexander I St. Petersburg State Transport University successfully implements all the projects outlined by the program and confidently reaches the goals it has set. The article briefly describes the key tracks of the university’s development during the implementation of the development program until 2030, as well as scientific and practical achievements obtained within the framework of strategic projects as of 2023.","PeriodicalId":441595,"journal":{"name":"BRIСS Transport","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135166050","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}
{"title":"Technical and legal regulation of urban railways","authors":"A. V. Romanov, A. A. Kiselev","doi":"10.46684/2023.3.4","DOIUrl":"https://doi.org/10.46684/2023.3.4","url":null,"abstract":"The article deals with the issues of legal and technical regulation of railway transport infrastructure facilities in cities and urban agglomerations. An attempt was made to determine the legal status of such objects. The features of such railways are considered, the need for highlighting regulation of urban railways is indicated. It is proposed to initiate work on establishing the priority of passenger transportation over freight in the territory of cities and urban agglomerations. Possible ways to solve the stated problem are proposed, consisting in several measures, including the definition of a list of regulatory documents that prevent the allocation of a separate regulation of railway transport in cities and urban agglomerations, conducting relevant scientific research and preparing proposals for amending regulatory documents.","PeriodicalId":441595,"journal":{"name":"BRIСS Transport","volume":"42 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135168257","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}
Yu. P. Boronenko, A. A. Komaidanov, S. M. Drobzhev
{"title":"Evaluation of the Efficiency of the Use of Hopper Cars with Aluminum Alloy Bodies","authors":"Yu. P. Boronenko, A. A. Komaidanov, S. M. Drobzhev","doi":"10.46684/2023.3.7","DOIUrl":"https://doi.org/10.46684/2023.3.7","url":null,"abstract":"The use of aluminium and its alloys in the world history of car building began in the 30s of the last century. The paper considers various types of cars made using aluminium alloys produced in different countries, as well as an assessment of the effect of the use of cars with bodies made of aluminium alloys in the Russian Federation. The effect was determined for three parties of the transportation process: car owners, the carrier and the consignor. The paper calculated the effect of using a hopper car made of aluminium alloys model 19-1299 with an axle load of 25 tf in comparison with hopper cars with steel bodies with an axial load of 25 and 23.5 tf. It is shown that for the consignor and the carrier, the use of a car with an aluminium body by reducing the tare weight and increasing the carrying capacity brings a significant economic effect, at the same time, as for the owner of the car, there is a reasonable increase in the price of the car by 25–30 %. The purchase of cars with aluminum bodies is more expensive for the owner, and therefore it is necessary to increase the rental rate to compensate for the costs or take measures for state support.","PeriodicalId":441595,"journal":{"name":"BRIСS Transport","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135166051","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}
{"title":"Railways of India. Time to update and upgrade","authors":"V. B. Zakharov, E. Komarov","doi":"10.46684/2023.3.3","DOIUrl":"https://doi.org/10.46684/2023.3.3","url":null,"abstract":"By the second decade of the XXI century, the railway transport of India came up with an important result — the Program announced on April 1, 1992, called Unigauge for the transfer of the railway network to a single gauge of 1676 mm was basically completed. In 2022, the operational length of wide-gauge roads on the Indian railway network was 65,094 km, or 95.7 % of its entire length. This opened up the possibility of creating a modern unified railway transport system and organizing its optimal interaction with other modes of transport. The management of the railway transport of India, represented by the Ministry of Railways, has focused efforts on the modernization of all components of the large railway economy — strengthening track structures, upgrading bridge facilities, introducing modern means of ensuring train traffic and transportation safety, updating rolling stock. The basis for improving the work of railway transport is the electrification of railways, the completion of which is planned in the next decade. All decisions taken to modernize railways are aimed at reducing operating costs, improving efficiency, environmental cleanliness, comfort and speed of passenger travel, reducing the delivery time of goods, as well as improving the safety of transportation by rail.","PeriodicalId":441595,"journal":{"name":"BRIСS Transport","volume":"48 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135168267","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}
D. D. Karimov, A. S. Vataev, S. A. Metlyakova, N. V. Bogdanov
{"title":"The use of numerical simulation in the analysis of aerodynamic problems in transport","authors":"D. D. Karimov, A. S. Vataev, S. A. Metlyakova, N. V. Bogdanov","doi":"10.46684/2023.3.5","DOIUrl":"https://doi.org/10.46684/2023.3.5","url":null,"abstract":"The study of the aerodynamic impact of rolling stock on the railway infrastructure is carried out either with experimental methods or with numerical simulation methods. The use of numerical simulation methods allows you to safely and quickly obtain the necessary data. An important task is to determine the factors that affect the aerodynamics of the rolling stock. To study aerodynamic processes in transport it is proposed to use the Frozen Rotor method in combination with the Large Eddy Simulation, which can be implemented using the Solid Works Flow Simulation software package. This method makes it possible to obtain a high-quality picture of the distribution of air flows in the boundary and main layers.","PeriodicalId":441595,"journal":{"name":"BRIСS Transport","volume":"56 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135166182","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}
{"title":"Application of different types of motor-axle bearings of locomotive wheel-motor units in the Far North","authors":"A. V. Osipov, D. Kurilkin, O. Khamidov","doi":"10.46684/2023.2.5","DOIUrl":"https://doi.org/10.46684/2023.2.5","url":null,"abstract":" Improvements in locomotive wheel-motor unit (WMU) design over the last decade have been made in terms of the transition to rolling motor-axle bearings (MAB) instead of plain bearings, which was the basis for the proposed study. The study is aimed to provide a theoretical estimation of power losses in different types of locomotive WMU MAB and its validation depending on heating temperature and bearing specifications. The study is aimed to determine power losses in MABs using new approaches to their determination. New methods of determining the power losses in the plain and rolling MABs of locomotive WMUs are suggested. These methods allow calculating the values of power losses depending on the specifications of MAB and its heating temperature. Depending on the bearing heating temperature, recommendations are provided with regard to operating conditions of a particular type of locomotive WMU bearing. It is recommended to operate motor-axle plain bearings in the temperature range of 10 to 20 °C, and rolling bearings from 20 °C and above. The suggested methodologies for calculating power losses of locomotive WMU MABs can be used to determine the energy efficiency of a given drive type, taking into account the type of the grease, its temperature, design features and operating conditions. The obtained results can serve as recommendations for the selection of the type of MAB.","PeriodicalId":441595,"journal":{"name":"BRIСS Transport","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130683266","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}
{"title":"Railways of India. An important stage of modernization is completed – unification of track width","authors":"V. Zakharov, E. Komarov","doi":"10.46684/2023.2.1","DOIUrl":"https://doi.org/10.46684/2023.2.1","url":null,"abstract":" India, the Republic of India is a country of one of the world’s oldest civilizations, the largest state in the world by population — 1.42 billion people (end of 2022), occupying an area of over 3 million square kilometers. India, which has accelerated the pace of its socio-economic development in recent decades, is playing an increasingly important role in the international arena every year, including as one of the BRICS organizers. The state railways of India are managed by the Ministry of Railways of India represented by Indian Railways (99 % of the country’s railway network) and are, despite the dominance of motor transport, remain one of the main modes of transport. During the year, the railways of India transport more than 8 billion passengers (2nd place in the world after Japan), the staff of the railways of India will amount to 1.2 million people (the 7th employer in the world). Railway transport in India is developing intensively, in recent years, work has been intensified on the organization of high–speed traffi c on a number of lines of existing railways, the fi rst high-speed railway line Mumbai — Ahmedabad is being built with a normal gauge of 1435 mm with a length of 508 km, designed for a maximum train speed of 350 km/h. The authors of the article have repeatedly visited India, visited various railway enterprises, railway educational institutions — universities and institutes, met with industry leaders at the Ministry of Railways of India, traveled along the country’s railways along a number of routes with a total length of about six thousand km.","PeriodicalId":441595,"journal":{"name":"BRIСS Transport","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127027341","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}
{"title":"Particularities of the formation of the air masses structure in the tunnel during the train movement","authors":"D. Karimov, Y. Vatulin, A. Vorobev, N. Bogdanov","doi":"10.46684/2023.2.6","DOIUrl":"https://doi.org/10.46684/2023.2.6","url":null,"abstract":"The effect of aerodynamic factors on the rolling stock and railway infrastructure has been analysed. The formation of air mass structure in tunnel structures during the movement of high-speed rolling stock has been investigated. The processes of aeroelastic interaction of rolling stock with tunnel portal structures are analysed by means of numerical simulation. The description of mathematical models and the ways of their three-dimensional realization in the Solid Works Flow Simulation software complex are presented. Methods of finite elements and volumes for the solution of the set tasks are used. The results of the numerical research of velocity fields near the tunnel portal area obtained with the help of the developed mathematical models for the cases of entry and exit of the rolling-stock into the tunnel are given. The complex structure of air masses formation in the gap between the train body and tunnel lining which leads to increased resistance to the train movement in the tunnel is revealed. The patterns in the changes of pressure dynamics on the surface of the head fairing when the train enters the tunnel are found. The fact of negative effect of high and low pressure zones, as well as their abrupt difference, on the locomotive crew and passengers has been established.","PeriodicalId":441595,"journal":{"name":"BRIСS Transport","volume":"06 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127137857","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}