bluuebunny/crossref_metadata_2025_split huggingface dataset:
The results of modeling and evaluating the dynamics of a road train with an active trailer link based on valve-inductor electric machines
Authors: Sova A N , Mazlumyan G S , Egorov O V , Eruslankin S A , Shadrin S S , Sova V A 
Published: June 2020

Abstract
The article describes the results of modeling and evaluating the dynamics of a road train with an active trailer link based on valve-inductor electric machines. It gives a general view and an equivalent road train diagram, shows a generalized simulation model of the movement of a two-link road train developed in the Simulink environment for studying motion in various road conditions. We proposed a reference surface model based on the terrain map, blocks were developed for calculating the road tilt angles separately for the tractor and the semitrailer, taking into account the type of coating under each road train wheel at the current time. The visualization of the movement of the road train is shown, the results of modeling and evaluation of the dynamics of the road train with an active trailer link based on valve-induction electric machines for creating control systems for individual drives of the electric motor-wheel of an active semi-trailer and developing a program and methodology of full-scale experimental research representations.
Modeling of live load influence in analisis of bridge structures endurance
Authors: Kozak N V 
Published: June 2020

Abstract
This article presents the results of the research phase of existing methods for calculating the endurance of bridge structures. The presented stage of the analysis of the endurance of bridge structures is devoted to the creation of an algorithm for modeling the impact of moving loads on the controlled elements created. The process of obtaining the necessary initial data is described, including finite element modeling of the span and its subsequent structural part to obtain matrices and analyze surface effects. Available initial data and load characteristics were the basis for the development of a particular program for the analysis of the effects of loads on the bridge. It is shown that this algorithm can be used to compare the effects of design loads both among themselves and with the effects of possible actual loads.
Ensuring the processability of construction disposal during design
Authors: Pavlov A P , Mitrohin N N 
Published: June 2020

Abstract
The level of organization of recycling and recycling processes in Russia has been assessed. The questions of the level of consumption of resources in production are presented, which gives an idea of the potential possibilities of unification not only of design solutions, but also of the nomenclature of used materials. It has been established that technological efficiency of recycling provides not only reduction of total costs for the recycling process itself, but also allows to more fully use the potential of working capacity of parts laid down during their production. The possibilities of ensuring the processability of the product design during its disposal at the design stage are considered. One of the most effective methods of ensuring the processability of the structure during recycling is to use the system of repair kits during design, which allows simultaneously increasing the processability during production, operation and repair. The proposed approach makes it possible to significantly reduce not only the time spent in repair of ground-based transport and technological means (GTTM), but also to significantly realize the possibility of providing technological effectiveness in recycling GTTM themselves and their units and parts. The use of repair kits formed at the design stage allows increasing efficiency not only during maintenance and during repair of GTTM, but also during their utilization and recycling.
Optimization of complex frost-resisting additives in line with operational requirements towards freezing temperature in road dressing constructions
Authors: Vdovin E A , Stroganov V F 
Published: June 2020

Abstract
The subject of the study is to optimize the compositions containing frost-resisting complex organic and inorganic additives (FRA) that provide the required level towards freezing temperature when constructing cement-mineral layers (CML) of road dressing (pavement). As a prerequisite to carry out these studies is the necessity to preserve the liquid phase in CML during asphalt laying at low (subzero) air temperatures, as well as ensuring a given level stated to the performance criteria and durability of road dressing layers. In our studies, we applied the comprehensive approach to the experiment, concluding in a choice of FRA components and in the use of experiment planning. The influence of functional additives and their quantitative composition on the freezing temperature (Tz
) during the experiment optimization in line with the D-optimal second-order plan has been considered. A mathematical model of the process has been obtained. We have found that the most significant mixture is the content of sodium formate (SF), compared to calcium chloride (CaCl2) and a superplasticizer based on the polycondensation product of naphthaleisulfonic acid and formaldehyde (C-3), the amount of which varies in the series 3>1>0.3. The obtained results on optimization allow to choose FRA compositions that provide the ability to perform construction works in conditions of subzero temperatures up to −15.6 °C.
Refined assessment of strength of concrete pavement probabilistic method
Authors: Stepushin A P , Chistyakov I V , Goryachev M G , Sadovnikova Y S , Kyaing A K 
Published: June 2020

Abstract
The object of research is the method of calculating the strength of cement concrete airfield pavement. According to the current regulatory documents, the calculation of the strength of the coating is carried out according to the first limit state, taking into account the internal forces arising in the slab from the impact of the wheel load and temperature. The repeated impact of loads from the wheels of the main supports of various types of air is replaced by the influence of the main support of the heaviest aircraft, causing the greatest bending moment in the design section of the plate. However, the calculations do not take into account the stochastic nature of such factors as the take-off weight of aircraft, the plate thickness, the bed ratio of the elastic foundation, the probability of the combined effect of operating loads from the main bearing wheels and temperature in the calculated section of the plate, as well as the probability distribution of loads from the aircraft spectrum across the width of the airfield elements. The article proposes a method for taking into account the probabilistic-statistical variability of operating loads, physical and mechanical properties of materials and the geometric characteristics of the plate, recommended when developing a new regulatory framework for the design of rigid airfield pavements. The method of statistical linearization of random functions of several random arguments was chosen as the research method. Using the mathematical apparatus of the theory of random functions, the statistical coefficient of the working conditions of the plate is analytically determined, and a numerical analysis of the obtained analytical solution is carried out. It has been established that with the same unfavorable combination of variability of basic arguments, the calculated absolute value of the statistical coefficient of the working conditions of the slab is more influenced by the coefficient of variation of the slab thickness than the coefficient of variation of the strength of cement concrete in bending. The condition for calculating the required thickness of the hard airfield slab of monolithic cement concrete is determined.
Digital technologies and new mobility
Authors: Bludyan N O 
Published: June 2020

Abstract
New types of mobility for people started to appear with the development of digitalization in various fields of transport industry. The article discusses the development trends of digital technologies in transport sector. The current situation of the use of digital technologies in transport is observed. Forecasts of the development and introduction of new technologies in digitalization are given. The author presents the overview and forecasts of the need for regulation of transport, taking into account modern technologies as well as the overview of new types of mobility for remote cities where it is not possible to create scheduled routes. The analysis and review of such directions of transport as sharing are presented. The advantages and disadvantages brought by car sharing in cities are substantiated. The analysis of the policies of different cities in stimulating people to transition to general economy and sharing cars is presented. As a result the overview of the advantages and disadvantages of carpooling system is reflected. Necessary legal regulation of carpooling and control over this type of activity are proposed. The article touches upon the issue of the fight against mass motorization through the use of vehicle sharing.
BIM of transport infrastructure – practical aspects of data collection for DTM creation
Authors: Gulin V N , Neretin A A , Paudyal S P 
Published: June 2020

Abstract
Road industry is moving towards the “Digital road” concept, and BIM of transport infrastructure is an integral part of it. Objects of transport infrastructure have linear structure required a special approach to their accurate coordinate description for proper digital terrain model creation. Approaches of railway and motor road experts to this issue is described. Implementation of mobile laser scanning and aerial photo survey using unmanned aerial vehicles for digital terrain model creation is discussed. Strengths and weaknesses of those two data collection methods are analyzed.
Investigation of the overtaking and overtaken vehicles speeds on two-lane roads in the traffic conditions of the Russian Federation
Authors: Pospelov P I , Kostsov A V , Martyahin D S , Nemchinov D M 
Published: June 2020

Abstract
The speeds investigation results of the overtaking, overtaken and moving on the opposite lane vehicles on two-lane roads in the conditions of the Russian Federation are presented in this paper. The investigations were carried out using unmanned aerial vehicles in compliance with generally accepted scientific methods. Based on the statistical processing of the measurement results, generalized vehicles speed data within the overtaking sections was obtained. It was noted that the presented investigations may be a rationale for improving the requirements for the design of roads on the territory of the Russian Federation. In addition, the obtained data may be used to develop measures to improve traffic safety on existing roads, which will have a generally beneficial effect on traffic safety.
Digitalization of the English language correspondence course for engineering students
Authors: Polyakova T Y , Gorbacheva O V 
Published: June 2020

Abstract
The paper is devoted to the problem of digitalization of a foreign language course for engineering students. Realizing the advantages of the educational process digitalization in engineering universities, MADI Foreign Languages Department launched the project aimed at the development of digital materials for teaching English. The course is addressed to the students of the University correspondence department at the level of baccalaureate. The digital English materials can be used as an integral part of the traditional course providing flexibility of self-study in any place with an Internet connection, self-paced learning and immediate assessment and feedback. The digital materials are intended to help correspondence students to overcome the main difficulties they have while studying English and to improve their learning outcomes. The paper gives the analysis of the definitions of the terms “digitization”, “digitalization”, and “digital transformation”, shows the difference between them, describes the aims and content of the digital materials, their structure, and the main language skills they develop.
Innovative development of the automobile and road complex
Authors: Pugachev I N , Kulikov Yu I , Telnova S V 
Published: June 2020

Abstract
The issues of the system approach to the automobile and road complex strategic development in accordance with the departmental project of the Ministry of Transport of the Russian Federation “The Digital Transport and Logistics” have been considered. They are a part of the national program “The Digital Economy of the Russian Federation” in connection with the Strategy of the Spatial Development of Russia for the period up to 2024. The national program is based on the transport modes infrastructure ensuring the areas interconnection and requiring the gradual modernization, digitalization and integration into one digital services ecosystem both for the transport individual modes and in the aggregate. The subjects of the study have become the automobile and road infrastructure objects that are the material and technical resources of transport services for the cargo, passengers and luggage transportation. However, the highway transportation in Russia holds the leading position in the cargo and passengers transportation total volume, where a significant proportion corresponds to the cities and agglomerations transport system with the deployment of cargo and passenger terminals, fuel stations, carriers and consumers of transportation services. The relevant national projects Passports being the background of the research and approved by the Presidium of the Presidential Council for the strategic development and the national projects contain the achievement of goals, targets and tasks in the format of instructions from the President of the Russian Federation to the Government. The technique of every national project (program) implementation in the relevant field at the first stage requires the conceptual strategic development, the digital technologies and the platform solutions reflected in the work.
Formation of fuel consumption norms for cargo transportation in Vietnam
Authors: Rementsov A N , Egorov V A , Vu Fan An , Antonov D V 
Published: June 2020

Abstract
The unified transport system of Vietnam includes road; rail; river; sea and air transport. Road freight transport has a particularly important role and provides for the delivery of goods, especially in large cities. Transport problems and the problem of improving the quality of freight transport in Viet Nam are classified as difficult and still not resolved. The paper analyzes the role of road freight transport in the economy. Here we propose a refined approach to determining the rationing of fuel consumption of trucks and its features in Vietnam conditions. By assessing the influence of various factors on fuel consumption, it is possible to increase the accuracy of standardization and reduce fuel consumption.
ICT-method for control of virtual rank-trajectory for researcher on automobile and road construction industry
Authors: Yashina M.V. , Karaeva M.E. 
Published: June 2020

Abstract
This article raises questions about the processes of bibliometric ICT-tools used by the scientific community in the automobile and road industry. This refers to scientific developments in the field of digitalization, in the operation of motor vehicles services, maintenance and design of highways, safety and traffic management. Modern ICT-methods can be implemented in the form of work with abstract and bibliographic databases, such as Web of Science, Scopus, Russian Science Citation Index, which show scientometric indicators of the publication activity of scientists, individual groups of researchers, organizations and journals. The following areas have been studied in the areas of scientometric databases: automotive industry, road complex and traffic flow management. Our study is devoted to the search for the above areas in the bibliography and the development of methods for providing a separate study to build its scientific activities and publication activity on an international scale. The study revealed that the above areas also include many other areas that, one way or another, affect the interests of other scientific fields. Due to the fact that the scope of scientometric databases is different, in order to study the scientific activities of scientists or journals, it is necessary to consider all indicators comprehensively in all databases. The rating trajectory of Doctor of Engineering Sciences, Professor M. Yashina, was also constructed, according to Web of Science, Scopus and Russian Science Citation Index.
Influence of Tire Tread Convexity on its Rolling with a Slip
Authors: Karelina M Yu , Balabina T A , Cherepnina T Yu , Mamaev A N , Vorontsov A S 
Published: June 2020

Abstract
The tire tread (inflated) may have a convex (toroidal) shape. At present, there is practically no data on the influence of this structural parameter of the tire on its power and kinematic characteristics when rolling with a slip. The solution to this problem, given in this paper, is based on the consideration of contact phenomena in the friction pair “elastic wheel – rigid support surface”. As a result, relationships that make it possible to determine the lateral force, the turning moment acting in the contact area, the friction loss in the contact area for wheels with different toroidalities as a function of the slip angle and the longitudinal tangential force realized in the contact area are obtained; conclusions about the influence of the convexity on the lateral force, the stabilizing moment and the power of friction losses in the contact area are drawn.
Removal of burrs from small-size high-precise parts for coaxial radio components
Authors: Karlina Yu I , Kargapoltsev S K , Gozbenko V E , Karlina A I 
Published: June 2020

Abstract
The urgency of the problem of removing burrs from parts of coaxial radio components is due to the fact that, according to technical requirements, burrs are not allowed on these parts, and on materials beryllium bronze, brass, alloy 29 NK used for their production, it is not possible to exclude the appearance of burrs during processing by cutting. The analysis of the influence of technological heredity of the number and size of burrs obtained on the CNC automatic turning operation to the choice of the method of deburring. The parameters of the burrs that affect the choice of the method of deburring, and the degree of their influence on the choice of a particular method are determined. On the CITIZEN bar lathes, an experimental selection of the cutting tool and processing modes was carried out in order to minimize the number and size of burrs on parts made of beryllium bronze, brass, alloy 29 NK. The installation of selected processing modes and tools will ensure the production of parts of coaxial radio components at the turning stage with a minimum number and size of burrs, which will reduce the laboriousness and time of deburring.
Analytical model of the laminar traffic phase states and its use for calculating the level of service indicators for road network
Authors: Efimenko D B , Vlasov V M , Bogumil V N , Demin V A , Filatov S A 
Published: June 2020

Abstract
The article is dedicated to the description and discussion of theoretical models that may be used for calculating the level of service indicators for road network. Authors developed the approach for calculating the level of service indicators for urban road network sections with signalized intersections. The core of the proposed models of assessing the level of service is based on the method, developed by American experts for main roads and adapted by the authors for the city roads. The approach to assessing the level of service is based on the advanced analytical model of the fundamental diagram, describing various phases of traffic flow. Herein authors introduce the concept of a laminar traffic flow in the sections of the road network, which is implemented for the level of service calculating.
Development of a methodology for optimizing the urban route in the metropolitan area
Authors: Novikov A N , Eremin S V , Shevtsova A G 
Published: June 2020

Abstract
One of the urgent tasks is to determine the composition of the bus fleet to serve each route. At the same time, it is necessary to be able to vary the type and number of buses that have different technical characteristics, in this regard, in the framework of the study, the issues of optimizing bus movement modes on city routes were considered. Basically, on the city route network, buses stop at all stopping points. However, quite often there is a situation when there is a sufficiently large unevenness of passenger traffic at various stopping points. In this regard, design schemes for analyzing the effectiveness of combined and shortened routes are proposed. Key relationships include empirical estimates of passenger flows. The parameters of the models are the volume of the bus fleet, the irregular production of buses, the probability of a denied boarding at individual stopping points.
Laser shock peening and its effects on microstructure and properties of additively manufactured metal alloys: a review
Authors: Munther Michael , Martin Tyler , Tajyar Ali , Hackel Lloyd , Beheshti Ali , Davami Keivan 
Published: June 2020

Abstract
This review paper discusses the recent progress in laser shock peening (LSP) of additively manufactured (AM) parts. LSP is an advanced post-processing technique that optimizes the service lives of critical components for various applications by inducing severe plastic deformation accompanied by the enhancement of surface properties in treated materials. Material improvement is enabled through the generation of high-density dislocations, grain refinement, and beneficial phase transformations. These mechanisms produce high magnitude compressive residual stresses which harden treated regions to depths exceeding 1 mm. However, a major roadblock for AM parts stems from the various fabrication processes themselves where detrimental tensile residual stresses are introduced during part manufacturing, along with near-surface voids and cracks, all of which severely limit their applications. In addition to post-fabrication heat treatment that is typically required to homogenize the microstructure and relieve the residual stresses of AM parts, post-processing surface treatments have also been developed to manipulate the residual stresses of AM materials. Tensile residual stresses generated during manufacturing affect the fatigue life of AM material negatively and could potentially surpass the material’s yield strength, resulting in acute geometric distortion. Recent studies have shown the potential of LSP to mitigate these stresses, modify the mechanical properties of the AM parts, and to close near-surface voids and cracks. Furthermore, the thermal stability of favorable microstructural modifications in laser peened AM parts, which allows for its use in high temperature environments, is not well understood and is currently limiting its effective utilization in these scenarios. The main goal of this review is to provide the detailed insight needed for widespread acceptance of this technique as a post-processing method for AM materials.