Pub Date : 2021-12-21DOI: 10.17816/transsyst20217465-75
L. Chechenova, N. V. Volykhina
Background: Nowadays, the transport industry faces unconventional challenges such as the need to modify the transport service and reduce dependence on resource leverage. At the same time, it is necessary to take into account the decline in business activity associated with the pandemic crisis and, as a result, the drop in demand and prices for hydrocarbon fuel in the medium term until the end of the crisis. Also, the implementation of a forward-looking transport policy has a close relationship with the economic category of time, since the value of time, converted into speed, shifts the emphasis of value from the initial price of the purchased transport service to the total cost of owning it. The railway transport system of the Russian Federation, as one of the leaders of the world transport system, has every opportunity to actively participate in global restructuring in response to the global climate and environmental crises. Aim: Determination of the relationship between the adoption of a sustainable development policy and the effectiveness of the implementation of projects for the development of backbone infrastructure in Russia. We confirm that the activities of transport companies within the framework of the established sustainable development goals (hereinafter referred to as ESG Environmental, Social, and Corporate Governance) contributes to the improvement of their operational activity. Methods: The research methodology is based on the analysis of international approaches and assessment criteria for ESG factors using analytical procedures to identify cause-and-effect relationships of the strategy for the development of railway transport in the Russian Federation within the framework of ESG. The information base of the study is based on an analysis of reports from international organizations and data from JSC Russian Railways in terms of funding, expected prospects and effects. Results: as a result of the study, the conditions for the transformation of the sustainable development of railway transport systems in the world and in the Russian Federation were determined against the background of changes in the geography and structure of commodity markets, favorable prospects were established from the direct participation of business in the implementation and implementation of the goals and objectives of sustainable development. Conclusion: on the basis of the study, an assessment was made of the benchmarks of JSC Russian Railways in the sustainable development strategy. In order to implement environmental infrastructure projects, the parameters of the compliance of the strategy for the development of railway transport in Russia with the goals of sustainable growth have been established.
{"title":"Trends for sustainable development of ecomobility transportation systems","authors":"L. Chechenova, N. V. Volykhina","doi":"10.17816/transsyst20217465-75","DOIUrl":"https://doi.org/10.17816/transsyst20217465-75","url":null,"abstract":"Background: Nowadays, the transport industry faces unconventional challenges such as the need to modify the transport service and reduce dependence on resource leverage. At the same time, it is necessary to take into account the decline in business activity associated with the pandemic crisis and, as a result, the drop in demand and prices for hydrocarbon fuel in the medium term until the end of the crisis. Also, the implementation of a forward-looking transport policy has a close relationship with the economic category of time, since the value of time, converted into speed, shifts the emphasis of value from the initial price of the purchased transport service to the total cost of owning it. The railway transport system of the Russian Federation, as one of the leaders of the world transport system, has every opportunity to actively participate in global restructuring in response to the global climate and environmental crises. \u0000Aim: Determination of the relationship between the adoption of a sustainable development policy and the effectiveness of the implementation of projects for the development of backbone infrastructure in Russia. We confirm that the activities of transport companies within the framework of the established sustainable development goals (hereinafter referred to as ESG Environmental, Social, and Corporate Governance) contributes to the improvement of their operational activity. \u0000Methods: The research methodology is based on the analysis of international approaches and assessment criteria for ESG factors using analytical procedures to identify cause-and-effect relationships of the strategy for the development of railway transport in the Russian Federation within the framework of ESG. The information base of the study is based on an analysis of reports from international organizations and data from JSC Russian Railways in terms of funding, expected prospects and effects. \u0000Results: as a result of the study, the conditions for the transformation of the sustainable development of railway transport systems in the world and in the Russian Federation were determined against the background of changes in the geography and structure of commodity markets, favorable prospects were established from the direct participation of business in the implementation and implementation of the goals and objectives of sustainable development. \u0000Conclusion: on the basis of the study, an assessment was made of the benchmarks of JSC Russian Railways in the sustainable development strategy. In order to implement environmental infrastructure projects, the parameters of the compliance of the strategy for the development of railway transport in Russia with the goals of sustainable growth have been established.","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"12 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120900427","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}
Pub Date : 2021-12-21DOI: 10.17816/transsyst20217490-105
A. Kosarev, O. Rimskaya, I. Anokhov
Background: The object of the study is regional and global cargo transportation. In order for cargo transportation to link the national economy into a single whole, and also allow it to realize its export opportunities, the level of organization of railway transport should be significantly higher than that of other market participants (primarily shippers and consignees). Aim: to study the prospects for increasing the role of railway transport with the help of digital technologies. Methods: To model the role of railway transport at the national and global levels, the article uses the concept of general organizational science by A. A. Bogdanov (Tectology). The Theory of Inventive Problem Solving (TRIZ) is used to model the role of railway transport at the micro level. Results: Railway transport is considered as a system consisting of subsystems: "working body", "transmission", "engine" and "computer". Each of these subsystems corresponds to separate divisions of railway transport. Digitalization involves the transfer from a person to automated systems, first of all, the functions of such a subsystem as a "working body", which functions according to the same algorithm and, therefore, is extremely routine. This simplifies and makes more predictable the production activities of the relevant departments of railway transport, which in turn creates the opportunity to increase the complexity of other subsystems. Conclusion: Railway transport was originally created as a complex macro system based on the most advanced technologies and significantly ahead of other industries in its development. Because of this, he was able to dramatically increase the level of complexity of the territories that he reached. However, today railway transport is experiencing increasing competition from other modes of transport, and therefore qualitatively new measures are required from railway transport to ensure advanced development. To do this, it is proposed to apply digitalization to the process of physical movement of goods as a whole: from fixing the need for transportation from shippers to delivering goods directly to the production sites of consignees. In this case, the main competitive advantage of railway transport becomes the "computer".
{"title":"Advancing the development of railway transport with the help of digital technologies","authors":"A. Kosarev, O. Rimskaya, I. Anokhov","doi":"10.17816/transsyst20217490-105","DOIUrl":"https://doi.org/10.17816/transsyst20217490-105","url":null,"abstract":"Background: The object of the study is regional and global cargo transportation. In order for cargo transportation to link the national economy into a single whole, and also allow it to realize its export opportunities, the level of organization of railway transport should be significantly higher than that of other market participants (primarily shippers and consignees). \u0000Aim: to study the prospects for increasing the role of railway transport with the help of digital technologies. \u0000Methods: To model the role of railway transport at the national and global levels, the article uses the concept of general organizational science by A. A. Bogdanov (Tectology). The Theory of Inventive Problem Solving (TRIZ) is used to model the role of railway transport at the micro level. \u0000Results: Railway transport is considered as a system consisting of subsystems: \"working body\", \"transmission\", \"engine\" and \"computer\". Each of these subsystems corresponds to separate divisions of railway transport. Digitalization involves the transfer from a person to automated systems, first of all, the functions of such a subsystem as a \"working body\", which functions according to the same algorithm and, therefore, is extremely routine. This simplifies and makes more predictable the production activities of the relevant departments of railway transport, which in turn creates the opportunity to increase the complexity of other subsystems. \u0000Conclusion: Railway transport was originally created as a complex macro system based on the most advanced technologies and significantly ahead of other industries in its development. Because of this, he was able to dramatically increase the level of complexity of the territories that he reached. However, today railway transport is experiencing increasing competition from other modes of transport, and therefore qualitatively new measures are required from railway transport to ensure advanced development. To do this, it is proposed to apply digitalization to the process of physical movement of goods as a whole: from fixing the need for transportation from shippers to delivering goods directly to the production sites of consignees. In this case, the main competitive advantage of railway transport becomes the \"computer\".","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124135587","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}
Pub Date : 2021-12-21DOI: 10.17816/transsyst2021745-13
G. Averchenko, K. Vasilev, Elena A. Rudakova, Anastasiya I. Shashko, V. Borisov
The object of the study is the forces in the beam-cable systems. The introduction of these systems in construction is associated with the task of creating a pre-stress in order to regulate the stress-strain state of the beam-cable system as a whole. Prestressing will make it possible to rationally use high-strength materials in the structure, and to design the structure economically. When designing girder-cable-stayed structures of bridge spans, it is necessary to determine the sequence of stresses of the structural elements-shrouds in order to regulate the forces in the beam element of the structure. This problem is considered in this article. The dynamic programming method is used to regulate the stress-strain state of the system by pulling the shrouds in the optimal sequence. To solve the problems, formulas for the output value and the optimality criterion, as well as the matrix, are given. As a result, the values of the output values of interest at all stages of the tension of the shrouds are found.
{"title":"Force control in girder-cable systems","authors":"G. Averchenko, K. Vasilev, Elena A. Rudakova, Anastasiya I. Shashko, V. Borisov","doi":"10.17816/transsyst2021745-13","DOIUrl":"https://doi.org/10.17816/transsyst2021745-13","url":null,"abstract":"The object of the study is the forces in the beam-cable systems. The introduction of these systems in construction is associated with the task of creating a pre-stress in order to regulate the stress-strain state of the beam-cable system as a whole. Prestressing will make it possible to rationally use high-strength materials in the structure, and to design the structure economically. When designing girder-cable-stayed structures of bridge spans, it is necessary to determine the sequence of stresses of the structural elements-shrouds in order to regulate the forces in the beam element of the structure. This problem is considered in this article. The dynamic programming method is used to regulate the stress-strain state of the system by pulling the shrouds in the optimal sequence. To solve the problems, formulas for the output value and the optimality criterion, as well as the matrix, are given. As a result, the values of the output values of interest at all stages of the tension of the shrouds are found.","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115861672","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}
Pub Date : 2021-09-30DOI: 10.17816/transsyst20217367-105
A. Kireev, N. Kozhemyaka, G. Kononov
Background: The development of work in the field of creating cargo maglev transport systems is associated with the development and study of the electro technical complex of the rolling stock for the operating range with long stretches in poorly developed territories. Aim: The aim of the work is to substantiate the structure and parameters of the components of the electro technical complex of the rolling stock, to study the operating modes. Methods: The main research methods are functional structural analysis and synthesis, computer modeling, computational studies, analysis of research results. Results: As a result of the research, the factors that determine the appearance of the electrotechnical complex of the rolling stock have been identified. The basic requirements for the electrical complex are formulated. The structure was developed and the parameters of the components of the electrical complex for the transport platform with magnetic levitation were determined. A high-speed flat car model 13-6990 for the transportation of containers was chosen as the closest railway analogue. A computer model of a combined traction-levitation system based on a linear reluctance inductor motor has been developed. The results of computational studies, confirming the physical feasibility of the electrical complex of the rolling stock with linear reluctance inductor motors, are presented. Conclusion: The practical significance lies in the fact that the proposed concept of constructing an electro technical complex of rolling stock provides for the creation of a maglev transport system with a low-cost infrastructure.
{"title":"Electrotechnical complex of maglev rolling stock","authors":"A. Kireev, N. Kozhemyaka, G. Kononov","doi":"10.17816/transsyst20217367-105","DOIUrl":"https://doi.org/10.17816/transsyst20217367-105","url":null,"abstract":"Background: The development of work in the field of creating cargo maglev transport systems is associated with the development and study of the electro technical complex of the rolling stock for the operating range with long stretches in poorly developed territories. \u0000Aim: The aim of the work is to substantiate the structure and parameters of the components of the electro technical complex of the rolling stock, to study the operating modes. \u0000Methods: The main research methods are functional structural analysis and synthesis, computer modeling, computational studies, analysis of research results. \u0000Results: As a result of the research, the factors that determine the appearance of the electrotechnical complex of the rolling stock have been identified. The basic requirements for the electrical complex are formulated. The structure was developed and the parameters of the components of the electrical complex for the transport platform with magnetic levitation were determined. A high-speed flat car model 13-6990 for the transportation of containers was chosen as the closest railway analogue. A computer model of a combined traction-levitation system based on a linear reluctance inductor motor has been developed. The results of computational studies, confirming the physical feasibility of the electrical complex of the rolling stock with linear reluctance inductor motors, are presented. \u0000Conclusion: The practical significance lies in the fact that the proposed concept of constructing an electro technical complex of rolling stock provides for the creation of a maglev transport system with a low-cost infrastructure.","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115017939","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}
Pub Date : 2021-09-30DOI: 10.17816/transsyst202173169-179
L. Chechenova
Aim: to determine the relationship between the adoption of a sustainable development policy and the effectiveness of the implementation of infrastructure development projects of the JSC Russian Railways. We prove that the functioning of the Holding within the framework of the established principles of sustainable development Environmental, Social, and Corporate Governance (ESG) contributes to the improvement of its operational activities. Methods: The research methodology is based on the analysis of international approaches and assessment criteria for ESG factors using analytical procedures for identifying cause-effect relationships of the strategy for the development of railway transport in the Russian Federation within the framework of ESG. The work was carried out with a focus on the current state of the railway industry in the Russian Federation in the context of sustainable development goals and is based on the analysis of reports from international organizations and data from the JSC Russian Railways, indicated in the Concept of financing sustainable development projects. Results: The evaluation of the strategic priorities of JSC Russian Railways in the strategy of sustainable development with the justification and criteria of development trends. The format of compliance of the strategy for the development of railway transport in Russia with the goals of sustainable growth was established with a comparison of national projects, government programs and strategic goals for the development of the transport complex of the Russian Federation. Conclusion: The analysis confirms the possibility of using the main results of the study when making decisions on sustainable development of infrastructure sectors of the economy and, in particular, transport to attract green investments in projects for the development of backbone infrastructure with priority settings for energy efficiency, environmental friendliness and safety of the railway transport system.
{"title":"Strategic priorities of JSC “Russian Railways” in the sustainable development","authors":"L. Chechenova","doi":"10.17816/transsyst202173169-179","DOIUrl":"https://doi.org/10.17816/transsyst202173169-179","url":null,"abstract":"Aim: to determine the relationship between the adoption of a sustainable development policy and the effectiveness of the implementation of infrastructure development projects of the JSC Russian Railways. We prove that the functioning of the Holding within the framework of the established principles of sustainable development Environmental, Social, and Corporate Governance (ESG) contributes to the improvement of its operational activities. \u0000Methods: The research methodology is based on the analysis of international approaches and assessment criteria for ESG factors using analytical procedures for identifying cause-effect relationships of the strategy for the development of railway transport in the Russian Federation within the framework of ESG. The work was carried out with a focus on the current state of the railway industry in the Russian Federation in the context of sustainable development goals and is based on the analysis of reports from international organizations and data from the JSC Russian Railways, indicated in the Concept of financing sustainable development projects. \u0000Results: The evaluation of the strategic priorities of JSC Russian Railways in the strategy of sustainable development with the justification and criteria of development trends. The format of compliance of the strategy for the development of railway transport in Russia with the goals of sustainable growth was established with a comparison of national projects, government programs and strategic goals for the development of the transport complex of the Russian Federation. \u0000Conclusion: The analysis confirms the possibility of using the main results of the study when making decisions on sustainable development of infrastructure sectors of the economy and, in particular, transport to attract green investments in projects for the development of backbone infrastructure with priority settings for energy efficiency, environmental friendliness and safety of the railway transport system.","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117333706","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}
Pub Date : 2021-09-30DOI: 10.17816/transsyst202173120-130
E. Y. Sundukov, B. Shifrin, Veronika E. Sundukova
Background: It is proposed to set a traveling magnetic field in a special control channel (beam, pipe), coupled with several controlled channels - small-sized maglev systems in which levitation of transport modules is carried out. Aim: to interface the control channel with several controlled channels (up to four) small-sized maglev systems. In this case, the control channel will be located in the center, and the controlled channels at the top, right, bottom, left. Methods: 3D-modeling, layout, spatial composition, patent search. Results: The traveling magnetic field in the control channel is created by a moving sequence of interacting magnetic field sources the movers, which interact too with magnetic field sources of transport modules the fellow travelers, levitating in the controlled channels through sources of a constant magnetic field. The structure is installed on arched supports that uniformly distribute the load over the support surface. A model of a two-channel system with a lower location of a controlled channel has been developed. Conclusion: The small-sized maglev systems can form a multi-channel transport system.
{"title":"Construction of multichannelmagnetolevitation systems","authors":"E. Y. Sundukov, B. Shifrin, Veronika E. Sundukova","doi":"10.17816/transsyst202173120-130","DOIUrl":"https://doi.org/10.17816/transsyst202173120-130","url":null,"abstract":"Background: It is proposed to set a traveling magnetic field in a special control channel (beam, pipe), coupled with several controlled channels - small-sized maglev systems in which levitation of transport modules is carried out. \u0000Aim: to interface the control channel with several controlled channels (up to four) small-sized maglev systems. In this case, the control channel will be located in the center, and the controlled channels at the top, right, bottom, left. \u0000Methods: 3D-modeling, layout, spatial composition, patent search. \u0000Results: The traveling magnetic field in the control channel is created by a moving sequence of interacting magnetic field sources the movers, which interact too with magnetic field sources of transport modules the fellow travelers, levitating in the controlled channels through sources of a constant magnetic field. The structure is installed on arched supports that uniformly distribute the load over the support surface. A model of a two-channel system with a lower location of a controlled channel has been developed. \u0000Conclusion: The small-sized maglev systems can form a multi-channel transport system.","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115380849","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}
Pub Date : 2021-09-30DOI: 10.17816/transsyst202173131-149
A. Almakki, Andrey Mazalov
Background: The direct flux and torque control are a robust, simple, and alternative approach control formulation that does not require decomposition into symmetrical components; the direct flux and torque control schemes have been proved to be preponderant for doubly-fed induction generators due to the simple implementation. Aim: This work presents the minimization of electromagnetic torque and rotor flux undulations of doubly-fed induction generators using fractional-order super twisting algorithms and modified space vector modulation techniques. Methods: The main role of direct flux and torque control is to regulate and control the electromagnetic torque and rotor flux of doubly-fed induction generators for wind turbine systems. The direct flux and torque control is a traditional control algorithm and robust technique. Fractional-order super twisting algorithms are a new and proposed nonlinear controller; characterized by a robust controller and a simpler algorithm, which gives a good harmonic distortion of current compared to other methods. Novelty: The A fractional-order super twisting algorithm is proposed. Proposed nonlinear controller construction is based on the traditional super twisting algorithm and fractional calculus to obtain a robust controller and reduces the electromagnetic torque and rotor flux undulations of doubly-fed induction generators. We use in our study a 1.5 MW doubly-fed induction generator integrated into a single-rotor wind turbine system to minimizes the electromagnetic torque, stator current, rotor flux undulations. As shown in the results figures using fractional-order super twisting algorithms ameliorate effectiveness especially minimizes the electromagnetic torque and rotor flux, and minimizes harmonic distortion of stator current (0.16 %) compared to the traditional control scheme. Results: As shown in the results figures using fractional-order super twisting algorithms ameliorate effectiveness especially minimizes the electromagnetic torque and rotor flux, and minimizes harmonic distortion of stator current (0.16 %) compared to the traditional control scheme. Conclusion: The direct flux and torque control are a robust, simple, and alternative approach control formulation that does not require decomposition into symmetrical components; the direct flux and torque control schemes have been proved to be preponderant for doubly-fed induction generators due to the simple implementation.
{"title":"Improved dfig dftc by using a fractional-order super twisting algorithms in wind power application","authors":"A. Almakki, Andrey Mazalov","doi":"10.17816/transsyst202173131-149","DOIUrl":"https://doi.org/10.17816/transsyst202173131-149","url":null,"abstract":"Background: The direct flux and torque control are a robust, simple, and alternative approach control formulation that does not require decomposition into symmetrical components; the direct flux and torque control schemes have been proved to be preponderant for doubly-fed induction generators due to the simple implementation. \u0000Aim: This work presents the minimization of electromagnetic torque and rotor flux undulations of doubly-fed induction generators using fractional-order super twisting algorithms and modified space vector modulation techniques. \u0000Methods: The main role of direct flux and torque control is to regulate and control the electromagnetic torque and rotor flux of doubly-fed induction generators for wind turbine systems. The direct flux and torque control is a traditional control algorithm and robust technique. Fractional-order super twisting algorithms are a new and proposed nonlinear controller; characterized by a robust controller and a simpler algorithm, which gives a good harmonic distortion of current compared to other methods. \u0000Novelty: The A fractional-order super twisting algorithm is proposed. Proposed nonlinear controller construction is based on the traditional super twisting algorithm and fractional calculus to obtain a robust controller and reduces the electromagnetic torque and rotor flux undulations of doubly-fed induction generators. We use in our study a 1.5 MW doubly-fed induction generator integrated into a single-rotor wind turbine system to minimizes the electromagnetic torque, stator current, rotor flux undulations. As shown in the results figures using fractional-order super twisting algorithms ameliorate effectiveness especially minimizes the electromagnetic torque and rotor flux, and minimizes harmonic distortion of stator current (0.16 %) compared to the traditional control scheme. \u0000Results: As shown in the results figures using fractional-order super twisting algorithms ameliorate effectiveness especially minimizes the electromagnetic torque and rotor flux, and minimizes harmonic distortion of stator current (0.16 %) compared to the traditional control scheme. \u0000Conclusion: The direct flux and torque control are a robust, simple, and alternative approach control formulation that does not require decomposition into symmetrical components; the direct flux and torque control schemes have been proved to be preponderant for doubly-fed induction generators due to the simple implementation.","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124938055","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}
Pub Date : 2021-09-30DOI: 10.17816/transsyst20217330-55
G. Averchenko, V. Borisov, K. Vasilev
The object of research in this article is the methods of restoring massive bridge supports, depending on the nature and volume of destruction. The work is based on the analysis of publications of domestic and foreign scientists, by the method of theoretical study, analysis and generalization of the material. From an organizational point of view, minor work on the repair of supports can be carried out by the order of the roads themselves, but as for large-scale work, they are sharply different from work on temporary restoration. The repair of damaged supports from a broken part of the masonry is not much different from the repair and reinforcement of supports performed on existing bridges. The greatest difficulties will be the repair of supports in the underwater part. To work on each individual repair facility, organizations with high mobility, skilled labor and a sufficient supply of materials are needed.
{"title":"Major restoration of massive bridge supports","authors":"G. Averchenko, V. Borisov, K. Vasilev","doi":"10.17816/transsyst20217330-55","DOIUrl":"https://doi.org/10.17816/transsyst20217330-55","url":null,"abstract":"The object of research in this article is the methods of restoring massive bridge supports, depending on the nature and volume of destruction. The work is based on the analysis of publications of domestic and foreign scientists, by the method of theoretical study, analysis and generalization of the material. From an organizational point of view, minor work on the repair of supports can be carried out by the order of the roads themselves, but as for large-scale work, they are sharply different from work on temporary restoration. The repair of damaged supports from a broken part of the masonry is not much different from the repair and reinforcement of supports performed on existing bridges. The greatest difficulties will be the repair of supports in the underwater part. To work on each individual repair facility, organizations with high mobility, skilled labor and a sufficient supply of materials are needed.","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"219 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122603647","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}
Pub Date : 2021-09-30DOI: 10.17816/transsyst20217356-66
E. Volkova
The evolution of urban transport systems leads to the emerging of new forms of transport services. This trend is increasing during the period of intensive development of new technologies, for example, digital technologies and smart transport systems. However, smart transport system involves not only implementation of information and communication technologies, but also changes in the business model of transport company, forms of their interaction with competitors and consumers. One of this new forms is transport sharing, which is the part of sharing economy. The latter involves the reduction of private ownership and sharing of benefits in different industries. Sharing economy is mainly develops in such areas as housing rental, trade and procurement, job search, and project financing. Recently, the accelerated development of sharing consumption of transport services with the accompanying development of electronic travel search services has attracted attention. This trend may in the near future significantly affect the structure of transport market, as well as forms and methods of doing business in urban transport, so the study of the segment of shared consumption in transport is of particular relevance. The purpose of this article is classification of new business models in the segment of transport sharing, as well as identification of the problems of transport sharing development in Russian megacities. The material for the research was taken from open sources, available publications and scientific articles on the economy of shared consumption.
{"title":"Sharing economy development in urban transport systems","authors":"E. Volkova","doi":"10.17816/transsyst20217356-66","DOIUrl":"https://doi.org/10.17816/transsyst20217356-66","url":null,"abstract":"The evolution of urban transport systems leads to the emerging of new forms of transport services. This trend is increasing during the period of intensive development of new technologies, for example, digital technologies and smart transport systems. However, smart transport system involves not only implementation of information and communication technologies, but also changes in the business model of transport company, forms of their interaction with competitors and consumers. One of this new forms is transport sharing, which is the part of sharing economy. The latter involves the reduction of private ownership and sharing of benefits in different industries. Sharing economy is mainly develops in such areas as housing rental, trade and procurement, job search, and project financing. Recently, the accelerated development of sharing consumption of transport services with the accompanying development of electronic travel search services has attracted attention. This trend may in the near future significantly affect the structure of transport market, as well as forms and methods of doing business in urban transport, so the study of the segment of shared consumption in transport is of particular relevance. The purpose of this article is classification of new business models in the segment of transport sharing, as well as identification of the problems of transport sharing development in Russian megacities. The material for the research was taken from open sources, available publications and scientific articles on the economy of shared consumption.","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129112630","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}
Pub Date : 2021-09-30DOI: 10.17816/transsyst202173158-168
A. Yashnov, Artem N. Ivanov
Aim: Justification of the technical feasibility of using string spans made of polymer composite materials for maglev transport systems. Methods: Computational and theoretical methods of research. Results: It is shown that by stretching the string and applying special design solutions, it is possible to create a close to" ideal" profile of the track structure for the maglev ovement. At the same time, it is preferable to use polymer composites as the string material, which allow for less sagging than metal ones at the same level of string tension. Conclusion: The alternative to traditional reinforced concrete or metal structures of string composite superstructures is justified.
{"title":"String superstructures for maglev transport","authors":"A. Yashnov, Artem N. Ivanov","doi":"10.17816/transsyst202173158-168","DOIUrl":"https://doi.org/10.17816/transsyst202173158-168","url":null,"abstract":"Aim: Justification of the technical feasibility of using string spans made of polymer composite materials for maglev transport systems. \u0000Methods: Computational and theoretical methods of research. \u0000Results: It is shown that by stretching the string and applying special design solutions, it is possible to create a close to\" ideal\" profile of the track structure for the maglev ovement. At the same time, it is preferable to use polymer composites as the string material, which allow for less sagging than metal ones at the same level of string tension. \u0000Conclusion: The alternative to traditional reinforced concrete or metal structures of string composite superstructures is justified.","PeriodicalId":255036,"journal":{"name":"Modern Transportation Systems and Technologies","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121836614","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}
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