bluuebunny/crossref_metadata_2025_split huggingface dataset:
Indicators of the efficiency for using of road-building machines at various levels of management decisions
Authors: Dotsenko A I , Mandrovskiy K P 
Published: March 2020

Abstract
Methods of technical and economic evaluation of road-construction machines are highly developed but their operation requires a wide list of initial data which is very difficult to obtain without monitoring systems. In modern conditions, economic factors determine the possibility of machines’ operation and the technical excellence of the machine is viewed by considering the cost of ownership and operation. This determines the relevance of the application of technical and economic assessments. In order to ensure the feasibility of applying of such technical and economic indicators towards the performance evaluation, they need to be adapted for use in monitoring systems. Modern monitoring systems allow you to monitor the technical and operational characteristics without a comparison with the indicators of the economic sphere. There is almost complete uncertainty in the methods of selection and evaluation of equipment that could be used in practice in modern conditions characterized by the presence in the market of equipment of the same purpose from different manufacturers. In such conditions, a system for collecting and processing the information with feedback would be convenient - a monitoring system for effectiveness evaluation. Feedback is necessary for creatingthe control actions in order to increase the efficiency or maintain it at satisfactory level - performance management. The development of methods of both technical and economic assessment which are suitable for using for road-construction machines and adapted for implementation in monitoring systems is a relevant topic of scientific research.
Structural analysis of Braking Energy-Conservative Systems of Transport Technological System
Authors: Isakov V S , Erejskiy A V , Kvetkin A A 
Published: March 2020

Abstract
The possibilities of application of the ways and means allowing beneficial use of kinetic energy of moving masses of various transport and transport-technological machines in the course of braking are considered. The concepts of development of inertial and energy-storage braking means for different types of actuating units are presented. The generalized block schematic diagram of a multimass object with the inertial energy-storage braking system and morphological matrix of possible technical solutions are offered. Various offers on realization of inertial and energy-storage braking systems in the designs of technological machines are shown and the results of the researches of energy-storage braking are presented.
Improving the efficiency of existing methods of diagnosing the hydraulic drive of road-building machines
Authors: Piramatov U A , Pugin K G 
Published: March 2020

Abstract
The article presents modern methods of diagnosing hydraulic drive. The drawbacks of modern diagnostic methods are revealed. The negative consequences of the effect of stagnation of the working fluid. The results of studies of working fluid samples are given. Suggested ways to solve the existing problem. A method for determining the nodes subject to the effect of stagnation of the working fluid is proposed. The effect of solving the problem of stagnation of the working fluid is determined.
SN-EVM unit for experimental studies of stability in circular cylindrical shells under combined loading
Authors: Cheremnykh S V , Skudalov P O 
Published: March 2020

Abstract
The article summarizes results of experimental studies of stability in circular cylindrical shells under combined loading by compressive force, internal pressure and torsion at the SN-EVM unit, developed by the Department for Strength of Materials, Theory of Elasticity and Plasticity at Tver State Technical University. It gives description of the test facility and methodology of experiments for studying the elastoplastic properties of materials under combined loading. It cites the processed experimental results for comparison with the formulated theory of bifurcation for the thin-walled circular cylindrical shell.
Formation of the network of spare elements warehouses
Authors: Kim B G , Nasrulloeva R A , Shakir Z N , Zakrevskaja L V 
Published: March 2020

Abstract
Discusses the redundant machinery construction enterprises. The method of calculation of a network of warehouses taking into account the possibility of different conditions of the reserve from the part to the backup machine. The technique allows you to determine the required number of warehouses of different levels, taking into account the time of delivery of the spare element from the warehouse on the other hand, it is necessary to take into account that the increase in inventory helps to slow down the turnover of reserve elements, increases the cost of the Insurance Fund.
Modern pedagogical education requirements for students at construction and mechanical engineering faculties
Authors: Skudalov P O , Cheremnykh S V 
Published: March 2020

Abstract
The professional activity of a fundamentalist teacher with classical education fully involved in the general educational and scientific process, and a teacher who successfully combines his professional activity with industrial one is considering. Professional characteristics of a teacher with a higher education and acquirements obtained at an industrial enterprise are compared to attainments of a teacher with fundamental pedagogical education to monitoring and eliminating gaps in students’ knowledge.
Model of infrastructure development of housing and utilities
Authors: Kustikova J O 
Published: March 2020

Abstract
Theoretical premises of sustainable development of the housing-and-municipal complex (HAMC) in a perspective of harmonious functioning of a triad of influence: economic-social-ecological (ESE) influencing factors are presented. The mechanism of implementation of technological innovations and creation of digital doubles, by object digitization of JKK with forming of a virtual system of vital maintenance is developed. The example of calculation with a different object combination of a system is presented to JKK showing complexity of obtaining adequate result without application of simulation models. It is proved that developing forecast model of the separate period of functioning it is necessary to represent risk scenario “a tree of events”, with simulation of result of adaptive adaptation to the changing conditions and assessment of coherence of elements of a triad of ESE.
Influence of removable anti-skid device on the soil density
Authors: Sakhapov R L , Makhmutov M M 
Published: March 2020

Abstract
The ways to improve the traction characteristics of the wheel MTA by the drive wheels loaders, the use of additional removable loads, the filling of the drive wheels chambers with liquid, the traction force of the tractor due to the increase in the coupling mass are studied. However, with the increase in the structural dimensions of the wheels and the use of dual tires improve the functional properties of the engines, however, significantly increase the cost of the engine, its dimensions, complicated handling of the machine. The use of removable anti-skid devices on the wheel drive increases the vertical load due to the weight of the anti-skid device. At the moment of interaction of the hook with the soil, the force required to introduce it into the soil, reduces the load on the wheel. A formula for determining the density of soils in the Wake of the mover is obtained. Depending on the magnitude of the force of introduction into the soil, two modes of interaction of the wheel with the soil are considered. To improve the traction properties of the engine, a new design of the device support was developed. After the introduction of the support to a dense layer of soil, it is opened, thereby increasing the contact area and sharply reducing the pressure of the wheel drive tires on the upper layers of the soil. Due to this process, the wheel (partially or completely) is not in contact with the topsoil. The equipment of propellers of wheeled vehicles with removable anti-skid devices, which allow to increase traction properties, reduce the compacting effect of the propulsor on the soil, seems to be a rational solution to the problem of increasing the traction characteristics of the driving wheels. The equipment of wheel machines movers with removable anti-skid devices allows to approximate the traction characteristics of wheel machines to the characteristics of crawler type movers due to the interaction of hooks with more compacted layers of the subsurface horizon soil.
Vehicle Counting at Road Intersections Using Video Data and Zone-Based Method with Additional Contour
Authors: Ibryaeva O , Zhulev A , Shepelev V , Burzev A 
Published: March 2020

Abstract
The problem of counting vehicles and determining the directions of their movement at an intersection is considered. A new zone-based method for counting vehicles which uses an additional inner contour is proposed. The presence of an additional inner contour helps to partially expands zones of interest and increases our chances of catching a vehicle in time. YOLO and CSRT tracker are used for detection and tracking of objects. Full flowchart of the working process including detection, tracking and counting, is given. The algorithm for inner contour constructing is proposed and it is shown that this contour presence reduces the error in counting vehicles.
Improving the efficiency and mobility of urban housing maintenance services
Authors: Burkeev D O , Romanova A I , Murafa A A , Maksimchuk O V , Voronin A V 
Published: March 2020

Abstract
Important areas of development in the field of housing construction are to energy efficiency, improvement of the system of operation and maintenance of buildings, transparency in the operational performance of buildings for owners and investors. To obtain such benefits, it is necessary to develop a strategy for implementation of intelligent technologies and smart engineering systems to improve energy efficiency, automate operational processes and create an ‘intelligent’ profile of a building. The article presents a study of energy efficiency of buildings and justifies smart management of real estate objects, in order to save resources and timely respond to the decline in their operational qualities. In the modern conditions of market economy, when most of the housing stock is privately owned, it is necessary to create a modern economic and organizational mechanism for overhauls, reconstruction and modernization of building with the use of BIM technologies. The result of the overhaul and reconstruction works is the restoration and improvement of the operational characteristics of buildings. An overhaul or a reconstruction is advisable if the technical condition of the building has been compromised and effective operation and maintenance are impossible.
The method of synthesis of new structural schemes of additional working equipment of the motor grader with the use of graphs and matrices
Authors: Mikhailovskaya V A 
Published: March 2020

Abstract
The article explores existing methods for the synthesis of structural schemes, but special attention is paid to a method based on the theory of graphs and matrices. The paper presents structural schemes of the additional working equipment of the motor grader and matrices of kinematic pairs, and graphs of fastening of elements of the structural scheme obtained by this method. The authors compare possible variants of these schemes and describe their advantages and disadvantages. The researchers suggest some test results conducted on a grader. The article calculates the stress-strain state, taking into account experimental data, and two design options for additional equipment of the grader.
Durability of bridge asphaltic concrete pavements under temperature loads
Authors: Grishyn I V , Ivanov G P , Kayumov R A 
Published: March 2020

Abstract
This article presents the major results obtained during the research of the effect of temperature factors on the formation of cracks in asphalt concrete pavements of bridges. The main problem was divided into a number of parts: determination of temperature field in pavement; creation of an engineering design model for determining the stress-strain state caused by temperature deformation; determination of asphaltic concrete rheological characteristics; introduction of criteria for assessing the durability of asphaltic concrete pavement.
Evaluation of the efficiency of roundabouts in modern cities
Authors: Gavaev A S 
Published: March 2020

Abstract
The article presents the results of studies that allow to reduce time delays by determining the optimal parameters of roundabouts based on the established dependencies of road characteristics on the geometric parameters of road intersections and traffic flows. In analytical studies, we identify the most effective types of configurations of the road intersection at the same level and establish the dependence of the average vehicle speed on the total traffic intensity for these configurations. Moreover, the paper establishes the dependence of the average speed on the intensity of traffic flow at different radii of the central guide island of the roundabout and the dependence of the average speed on the radius of the central guide island with different bandwidth of the carriageway on the approach to the roundabout.
Development of a finite-element model for bench testing of road fence rack
Authors: Demiyanushko I V , Karpov I A , Mikheev P S , Nadezhdin V S , Titov O V , Tavshadze B T , Awrejcewicz J 
Published: March 2020

Abstract
The article compares the results of mathematical modeling by the finite element method (FEM) with the results of bench tests of steel racks of a road fence. The object of the study was a road fence rack made of steel 3, with a cross section in the form of a channel (No. 12). As a result of mathematical modeling, we obtained the dependences of the force in the rack on the movement, as well as the energy absorption of the racks. The obtained parameters were compared with the empirical results of field tests.
The research of resistance to snow cutting and moving with an auger of a small-sized rotary-auger snowplow
Authors: Zakirov M F 
Published: March 2020

Abstract
Small-sized rotary-auger snowplows are being used to remove snow from pavements, areas near houses and in cramped conditions. To design and operate such snowplows, it is necessary to know the resistances that arise in the process of interaction of the working bodies with snow. The article describes the design of the laboratory stand “Ground channel” and the order of the experimental study to determine the resistance to snow cutting and moving with a screw of a small-sized snowplow. The paper presents the values of the total resistance on the screw feeder, depending on the frequency of rotation of the working body and the thickness of the cut snow layer.
Methods of the building of the dynamic models of the drive machines loads with the use of system monitoring data (on example of the acceleration of the drive of the drill tool)
Authors: Ashcheulov A V 
Published: March 2020

Abstract
The article considers the sequence of modern machines’ monitoring systems data processing. The aim is to build the mathematical models of the complex dynamic processes of the interaction between working bodies of the machines with external ambience. On the example of drilling machines on the starting and accelerating modes of the drilling tool, the authors obtained the dependencies of the torque on the output shaft of the rotation drive of the drill string depending on the frequency and rotation acceleration, and the depth of drilling related to the rock strength.
The influence of the ratio of the vibration device’s two stages’ imbalances’ static moments with asymmetric oscillations on the system amplification factor
Authors: Gerasimov M D , Vorobev N D , Ryazantsev V G , Kh Otakulov O 
Published: March 2020

Abstract
Vibration devices with asymmetric oscillations can consist of two or more stages of vibrators with directed vibrations. Component stages of a vibration device with asymmetric oscillations have multiple frequencies of rotation of the imbalanced shafts. The multiplicity of rotation frequencies of the imbalanced shafts of the vibrator’s stages with directed vibrators in a vibration device with asymmetric oscillations is imperative. In this case, the parameters of the total asymmetric oscillation depend entirely on the ratio of the static moments of the imbalances of the stages included in the vibratory device. The simplest vibration device with asymmetric oscillations is a device consisting of two stages of vibrators with directed vibrations. The article is devoted to the question of the influence of the ratio of the vibration device’s two stages’ imbalances’ static moments with asymmetric oscillations on the system amplification factor.
A method for constructing standard-size series of quick couplers
Authors: Duganova E V , Sevryugina N S , Kapyrin P D 
Published: March 2020

Abstract
The article analyzes the effectiveness of the use of multifunctional machines when performing work in the field of urban planning and environmental design. It has been established that unification ensures a reduction in the cost of equipment operation and allows to increase the rationality of using the working bodies according to their functional characteristics. The authors evaluated the typical nomenclature rows of quick couplers. It has been revealed that the variety of quick couplers offered by manufacturers does not allow to determine a common design feature, and to use it for unification for various classes of machines. In this regard, the authors take its weight to the mass of the base machine during the unification of standard-size series, as a main parameter. The paper develops a technique for unification of quick couplers. Then, the authors modify the mathematical model for estimating the cost of standard sizes of quick couplers according to the exponents and proportionality coefficients. They propose a parametric unification for 14 rows of the main parameter of the quick coupler. Finally, the paper develops a model for estimating the range of parametric applicability of various quick coupler constructions.
The network patterns characteristics research as one of the factors of traffic congestion
Authors: Saprykina O V , Akhmedova E A , Vinogradov K I 
Published: March 2020

Abstract
The article presents the planning structures analysis method of urbanized areas base on the geometric indicators of graph theory. For research, we developed a software package written in the Python programming language. The methodology of the analysis consists of identifying areas with a planning structure of a certain type in urban area and evaluating the selected area according to several calculated indicators. According to the results of the study, hypotheses were made about the impact of the type of planning structure on the level of traffic load of the city’s road network.
Analysis of contact parameters of large tires with soil for earthmoving machinery
Authors: Zhulay V A , Tyunin V L , Volkov N M , Degtev D N 
Published: March 2020

Abstract
The article demonstrates the equations for finding the contact width parameters of a large tire with a deformable support surface, such as the radius and angle of the sidewall arc, the sidewall width in the contact area, the track width under the wheel center and at any point of contact. For some large-size tires, the paper discovers graphical dependences of the track width at any point of contact on the internal tire pressure, the vertical wheel load and the tire structure. The authors analyzed the results of these dependencies.
Synthesis of the six-part spatial mechanism
Authors: Mudrov A G , Sakhapov R L 
Published: March 2020

Abstract
The synthesis of flat and spatial mechanisms is of a great importance in the development of various devices, including robotics, automated lines, etc. These questions are set out in the works of Russian scientists (on the structure of the mechanisms, the synthesis) as well as in the foreign science. The purpose of this article is to synthesize a six-part spatial mechanism to reproduce the linear function of the slave link, which takes place at certain angles of rotation of the drive and slave links in devices with linear functions. The authors used the method of uniform best approximation of functions, graphical method, analytical theory of infinitesimal flat displacements of a rigid body, quadratic approximations, and analytical theory of a finite number of positions of a solid body.
Metal plating based on copper (II) complex compounds with hydroxyethylidene diphosphonic acid
Authors: Mukhametshina R M 
Published: March 2020

Abstract
The materials used in mechanical engineering must ensure proper work of the details and meet the requirements of the minimum complexity of its manufacture and efficiency. In this regard, the issues of improving the technological processes of obtaining metal coatings are of particular importance. This paper studies the possibility of using copper (II) complexes with hydroxyethylidene diphosphonic acid to obtain high-quality copper coatings by the method of electron paramagnetic resonance. The author are determines stability constants of the complexes and their regions of existence. Moreover, the article investigates the effect of stabilizing additives on the technological characteristics of solutions of chemical copper plating. Due to the obtained results, the author developed a highly stable solution of chemical copper plating based on copper (II) complex compounds with hydroxyethylidene diphosphonic acid.
Exploring the effect of thermoplastic composition on light emission
Authors: Sakhapov R L , Kashipov R F , Gatiyatullin M H 
Published: March 2020

Abstract
Currently, reflective coloring agents are used for road markings. To obtain the best result from the use of the light-reflecting effect of the marking, we propose to use luminophore (light-emitting powder), by adding it to the thermoplastic composition heated at about 200 ° C. It can ensure the best visibility in the dark, in the conditions of rain and snowfall. The effect of the use of this technology will be visible both in urban and rural areas, where it can surely be an excellent alternative in case of the absence of stationary lighting. This will give the driver a good view of the route, even with the lights off. By analyzing the available and relevant information and conducting the necessary research and experimentation, the main goal will be to obtain the best results and a rational proportion of components in the manufacture of experimental samples that provide the maximum light-emitting effect.
Use of program ANSYS in the analysis of interaction between a rigid foundation and reinforced soil
Authors: Antonov V M , Al-Naqdi I A 
Published: March 2020

Abstract
Work is devoted to model and process the results of interaction between a rigid metal plate and a reinforced sand base using the software “ANSYS”.
One of the effective ways to increase the strength is the inclusion of various materials (reinforcement) in the soil below the structure. It increases the resistance of the soil to stress and shear, limits lateral deformation. Organic, synthetic, metal and stone materials are used as reinforcing elements. The studies showed that the effectiveness of the reinforcement and the bearing capacity of the reinforced ground depend on the position, length, roughness and fixity condition of the reinforcement [27].