bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ergonomic component when designing mining machines: new scientific and practical works
Authors: Velikanov V S , Dyorina N V , Pikalova E A , Yuzhakova Yu V 
Published: December 2019

Abstract
This article is devoted to a review of publications in the field of ergonomic reengineering of mining machine workplaces. It has been established that the efficiency and quality of labour operations directly depends on the level of ergonomic support of the operator’s workplace. The authors of the paper present the publications of foreign scientists dealing with ergonomic support of mining machines, as well as machinery and equipment of related industries.
Ecosystem of education competence center of the Industry 4.0
Authors: Zakoldaev D A , Shukalov A V , Zharinov I O , Dorofeev N I 
Published: December 2019

Abstract
The task is to organize an educative process to prepare the specialists in direction of the Industry 4.0 paradigm. The Industry 4.0 paradigm means to create industrial companies with digital informative technologies and which function automatically. To work in such companies, they must prepare the specialists of profile competences. It is clear that the educative program scientific content must contain the property of interoperability for all technologies which are used together in a digital production. To attain informative technologies, they need to create technological and branch centers of competences which are specialized preparation of highly-qualified personnel. There is a structure and components description for an Industry 4.0 competences branch center.
Analysis of the indentation size effect on the hardness measurements of materials
Authors: Matyunin V M , Abusaif Nuha , Marchenkov A Yu 
Published: December 2019

Abstract
The influence of the indentation size effect on the hardness measurements of materials using indentation method was studied. A method for determining and comparing the hardness of two different materials with studying the indentation size effect was developed. To identify the influence of the indentation size effect on the Vickers hardness of materials with different levels of hardness two-dimensional parameters α and γ were proposed.
Approximation of machine tool experimental thermal characteristics by neural network
Authors: Pozevalkin V V , Parfenov I V , Polyakov A N 
Published: December 2019

Abstract
The article evaluates the effectiveness of an artificial neural network use for mathematical processing of the machine tool experimental thermal characteristics. To improve the quality of approximation and the accuracy of forecasting, two types of neural networks were used, namely a network of radially basis functions and a generalized regression neural network. The results of a full-scale thermal experiment of the idling 400V machine tool are presented. Computational experiments of the thermal testing results of a metal cutting machine were carried out to build and test the models under study. The results showed that neural networks perform better than the classical power polynomial model in terms of accuracy and approximation quality. Thus, neural networks can be used to approximate the experimental thermal characteristics of the machine tool in real time.
Methodology and practical application of the automation system for unmanned spacecraft design
Authors: Akhtulov A L 
Published: December 2019

Abstract
The problem of automation of design of automatic spacecraft structures taking into account their dynamic characteristics are considered. According to the results of the research, the procedure of unification of the method of automatic formation of stiffness and inertia matrices of complex spatial structure is proposed. The procedure based on the transfer functions method allows to determine the level of loads of a certain type. The proposed approach shows the best results in bench tests of automatic spacecraft structures and can be used to calculate complex mechanical systems of machines and assemblies for various purposes.
The development of rolling-stock virtual simulator
Authors: Staroverova N A , Shustrova M L , Zatsarinnaya Yu N 
Published: December 2019

Abstract
In the article, development stages of the virtual simulator Duomatic 09-32 hardware-software complex intended for drivers-operators training in driving of the special self-moving Duomatic 09-32 rolling stock are considered. In the presented research the data domain is studied, the concept of the virtual model basis of the Duomatic 09-32 simulator is developed and the system is designed. The bearing – tamping - leveling machine Duomatic 09-32 is the special machine on railway transport for railway track bearing in a longitudinal and cross profile and in respect of and also for tamping of ballast. It is applied at construction, repair and the current maintenance of a railway. The simulator considers many aspects of railway transport management process (structures, people on the ways, railway signs, traffic lights etc.) that allows the operator to gain qualitatively skills of the analysis and information processing and actions execution for management of train structure depending on a situation. Considering responsibility of the engineer not only for himself, but also for other participants of the movement, management of train structure is considered as difficult process. It demands emotional pressure, ability to constantly analyze a surrounding situation and to predict development of the situation. The simulator allows to receive necessary skills and makes drivers training activity more convenient and safe.
Experimental study of double-sided face grinding machine tool
Authors: Nikitina I P , Polyakov A N 
Published: December 2019

Abstract
The work considers the methodology of experimental studies of double-sided face grinding machines on the criterion of heat stability. The proposed methodology includes: procedure of grinding process simulation; procedure of temperature measurement; procedure of determining the mutual angular position of the grinding wheels due to thermal deformations; procedure of machining error measurement. The described techniques allow you to fine-tune the machine under production conditions. Preliminary full-scale test of a double-sided face grinding machine showed that excess temperatures were distributed nonuniform over the elements of the load-bearing structure of the machine tool when grinding an industrial batch of cylindrical rollers. When idling the end face of the spindle headstocks and bed had the highest excess temperature. When grinding the surface of the machine units, located in the immediate vicinity of the grinding zone, had the highest temperature. The experiments carried out confirmed the coordination of the nature of the change in excess temperatures at characteristic points and cutting coolant when simulating the grinding process on a machine with the corresponding experimental data obtained on a working machine.
Using rhythmograms to diagnose mechanical systems
Authors: Balakin D A , Shtykov V V 
Published: December 2019

Abstract
The possibility of using a rhythmogram for the diagnosis of mechanical systems is discussed. The rhythmogram is obtained using the method we developed for processing quasiperiodic pulsed signals. The method is based on the principles of the theory of optimal filtration, the theory of wavelet transform and Hermite transform. The efficiency of the diagnostic method is demonstrated by the example of the operation of bearings of a gas turbine engine. A conclusion is given on the further development of the method for assessing the states of mechanical systems.
Fuzzy estimates of resonance frequencies for three-layer composite cylindrical panels in smart aerospace and industrial structures
Authors: Storozhev S V , Storozhev V I , Bolnokin V E , Hai Duong Minh , Mutin D I 
Published: December 2019

Abstract
Is developed a numerical-analytical fuzzy-sets methodic for a analysis of the uncertain endogenous parameters of the resonant frequencies in a theoretical model of vibration of thin orthotropic composite three-layer cylindrical panels with small curvature having of symmetrical structure with two external transversally-isotropic piezoelectric layers and with internal orthotropic layer from linearly viscoelastic composite material if available of scatter errors in values of their structural exogenous physical-mechanical and geometric parameters. The technique is based on the transition to fuzzy-interval arguments in the analytical representations for the studied resonant frequencies and in the application of the heuristic principle of generalization to obtain of estimates for the values of such resonant frequencies in the form of normal fuzzy sets. An example of the implementation of the technique under consideration is presented.
Improving the quality of the manufacturing process of turbine blades of the gas turbine engine
Authors: Vdovin R A 
Published: December 2019

Abstract
This paper describes the results of research and development work, which lead to an increase in the quality of the technological process of manufacturing the working turbine blades of a gas turbine engine. The mathematical description of the four-zone process of directional crystallization made it possible to select the most optimal thermophysical parameters of the casting process that affect the macrostructure of casting the blades. Digital modeling of casting technology, taking into account the proposed mathematical models, as well as the boundary, contact and initial conditions of the process, made it possible to most reliably describe the temperature front distribution in the crystallization zone at discrete points for any moment in any section. The temperature-time optimization of the technological process for casting turbine blades made it possible to select the optimal temperature conditions for the respective areas of the foundry plant, which ultimately allowed a 20% reduction in rejects associated with the mismatch of the macrostructure of castings the blades to the standard.
Software engineering math for network applications
Authors: Golosnoy A S , Provotorov V V , Sergeev S M , Raikhelgauz L B , Kravets O Ja 
Published: December 2019

Abstract
Software creation for cyber-physical systems is based on complex algorithms. A feature of the modern organization of production and commerce is the consolidation of participants in these activities into complex network structures. In this case, a scientifically based analysis of network processes of a physical and economic nature is necessary. In the present paper, the formalization of the problem is carried out using graph theory. A mathematical model based on partial differential equations, defined on a graph with one cycle is developed. The analysis comes down to the important problem of expanding a given function into eigenfunctions of the Sturm-Liouville tasks with measure on the graph. The obtained results are fundamental for cyber-physical systems of a wide range of applications.
Automation technologies for fish processing and production of fish products
Authors: Komlatsky V I , Podoinitsyna T A , Verkhoturov V V , Kozub Y A 
Published: December 2019

Abstract
The fish processing industry applies a small number of automation technologies compared to other industries. Their number should be increased despite automated food processing problems and hygiene requirements. Automation and implementation of robots can reduce production costs and improve product quality. The issues of designing automation systems for the fishing industry are analyzed. Automatic control systems can control quality of fish and fish products. Automated systems receive, freeze, sort, cut, wash, salt, dry, smoke, press, cool, package and store fish and fish products. Modern technological tools are equipped with automatic control systems. Some of them include specialized automation and robotic units equipped with microprocessor control systems. Application and implementation of automation systems for processing fish are described. Future trends are discussed.
Structure and phase composition of diffusion zones formed as a result of homogeneous and heterogeneous reactions at the boundary of the AD1-Cr15Ni60 composite
Authors: Shmorgun V G , Bogdanov A I , Kulevich V P , Shcherbin D V 
Published: December 2019

Abstract
This paper presents the study results of the diffusion interaction processes at the interlayer boundary of explosion welded Cr15Ni60-AD1 bimetal during the occurrence of homogeneous (at the solid – solid interface) and heterogeneous (at the solid – melt interface) reactions. It was shown that the diffusion zone formed during homogeneous interaction has a layered finely dispersed structure, while in a heterogeneous one it is predominantly needle-shaped with large fragments of the structure. Diffusion zones are characterized by heterogeneity in chemical composition, while their phase composition is almost identical: CrAl7, FeNiAl9, (Fe,Ni,Cr)Al9, (Fe,Ni,Cr)Al5, NiAl3, (Ni,Fe,Cr)Al. It has been established that the transition from the interaction at the solid – solid interface to the interaction at the solid – melt interface leads to a significant acceleration of diffusion processes.
Production planning process effectiveness improvement through the automated system introduction
Authors: Skorniakova E A , Sulaberidze V Sh , Semenova E G 
Published: December 2019

Abstract
The necessity of special automated systems creation for the effective organization of industrial enterprise processes is substantiated. The effectiveness indicators of the production planning process are defined and the criteria for their evaluation are determined. The results of an automated planning system introduction at several instrument-making enterprises are presented, according to which an improvement in all effectiveness indicators was obtained, namely: the number of mistakes in the data collection subprocess was reduced by 85%, the time of production plan creation was reduced to 1 minute, the mistakes of plan creation process were completely eliminated, the time of plan and it versions assessment was reduced by 60%, and the timing of the studied planning subprocesses was completely observed.
Technological equipment parts rough surfaces elastic-plastic strain under compression mathematical modelling
Authors: Gulyaev V A , Kozlov A A , Loginov N Y 
Published: December 2019

Abstract
This article discusses dimensions and similarity analysis methods, which are the theoretical basis mathematical modeling in the study of the contact interaction of technological equipment parts fixed interfaces. In the solid mechanics mathematical modeling is used mainly in experimental studies of stress fields, strains and displacements arising under load in the model, geometrically similar to the real element in nature (prototype).
Estimated delamination of an elastic-plastic liner in a high-pressure metal composite vessel
Authors: Egorov Anton V 
Published: December 2019

Abstract
To carry out delamination analysis in high-pressure metal composite vessels, a software approach is proposed in which the dynamic calculation algorithm is implemented in software systems. The algorithm is built on three points: the introduction of technological deviations (at the level of permissible defects), the determination of a three-dimensional stress-strain state, and a real-time solution. As a calculation program, LS-DYNA was selected in a dynamic formulation with the structure divided into 3D solid elements and unilateral constraint on the contact surface of the metal (liner) and composite shells was introduced. A geometrically and physically nonlinear problem is solved. The moment of liner delamination from the composite shell is determined by the change in the liner stress-strain state and by the liner deformable surface in time presented visually.
The use of platinum metals to increase the corrosion and strength characteristics of industrial titanium casting
Authors: Andreev Yu V , Kozlovskaya A E 
Published: December 2019

Abstract
The materials used for technological equipment manufacture should have high mechanical strength, chemical and thermal resistance. Technical titanium is widely used for these purposes. The article studies the effect of small palladium additives on titanium chemical and mechanical properties. It was revealed that the introduction of 0.23% palladium during titanium smelting has little effect on the mechanical properties of doped titanium, but it increases its resistance to sulfuric and hydrochloric acids.
The effect of hard segments structure on the functional properties of polyurethane elastomers based on oligoesterurethane epoxides
Authors: Senichev V Yu , Slobodinyuk A I , Makarova M A , Savchuk A V , Pogoreltsev E V 
Published: December 2019

Abstract
A series of polyurethane elastomers based on polyester urethane epoxy oligomers and cycloaliphatic diamines was synthesized. The relationship of the physico-mechanical properties of these elastomers with the structure of their polymer chain was studied. It was established that various options for increasing the strength of the final elastomers can be implemented, depending on the type of initial oligoesters and diamines. They may be associated with an increase in the degree of microphase separation between hard and soft polymer segments, and with partial crystallization of soft segments as well.
Research of load and speed parameters of the health of rolling bearings
Authors: Kovalsky B I , Lysyannikova N N , Knyazev K A , Shram V G , Lysyannikov A V , Kravtsova E G 
Published: December 2019

Abstract
The influence of the lubricant base and the rotation speed of rolling bearings on the formation of an elastohydrodynamic layer is studied. The method of control parameters of the formation of an elastohydrodynamic layer in rolling bearings is presented, which allows one to determine the parameters at which an elastohydrodynamic layer is formed on the surfaces of the rolling bodies. The results of a study of the effects of radial, axial and common loads are presented. As a result, the experimental data were obtained and analyzed, and graphical dependencies were constructed that clearly demonstrate the formation of an elastohydrodynamic layer.
Dynamic method of control of weight of cargo transported by vehicle
Authors: Egorov A V , Dorohin S V , Lysyannikov A V , Kaizer Yu F , Kuznetsov A V , Lysyannikova N N , Tyukanov V L , Lunev A S 
Published: December 2019

Abstract
The existing methods of control of the total weight of vehicle are based mainly on strain measurement methods and are implemented in the form of mobile or stationary weighing platforms. The main drawback of such systems is the need to enter the vehicle on the weighing platform. In the context of a developed road network, this approach does not allow to track the weight of all vehicles moving on roads, and thus creates conditions for incomplete identification of vehicle, the total weight of which exceeds the permitted for a particular road. Existing strain gauge weighing systems, placed directly on the vehicle, tend to deteriorate the accuracy of weighing for a certain time of operation. The several works performed in the 90s of the twentieth century describes the method of dynamic control of the weight of vehicle and train. However, the method does not contain a clear theoretical scientific justification and is based on experimental data, so this method has not been further developed. The article presents a theoretical justification of the dynamic method of controlling the weight of vehicle, implemented on the basis of the analysis of the dynamics of angular accelerations of the motor of a vehicle during acceleration on identical surfaces in the empty and loaded state.
The study of casting defects in steel 35HGSL
Authors: Skryabin M L , Likhanov V A 
Published: December 2019

Abstract
In this research work the classification of defects of castings obtained by electric arc smelting is considered. Of particular interest to researchers is the rock-like and naphthalene fractures. A stone-like fracture is characterized by a clearly defined uniform surface over which the fracture occurs. Grain boundaries are partially soluble in the austenite phase, consisting of fine individual particles or films formed from molten eutectics. It is also worth noting that most often the stone-like fracture is observed at the grain boundaries.
Improving the technology of sorting wood chips obtained from stump and substandard wood by resin content
Authors: Polyanin I A , Makarov V E , Egorov A V , Lysyannikov A V , Kaizer Yu F , Voldaev M N , Stepanova K S 
Published: December 2019

Abstract
The paper considers the issues of the most complete use of wood biomass through the widespread use of a secondary type of raw material - stumps and substandard wood, which under current conditions of logging is 15-25 % of the total volume of harvested wood. The issues of sorting technological wood chips obtained from stumps and substandard wood in an electrostatic field by resin content. Existing methods for sorting technological wood chips by resin content. A new method of sorting technological wood chips for low and high resin in a constant high voltage electrostatic field has been proposed, which can be recommended for industrial implementation. A mathematical model of the deviation of technological wood chips in an electrostatic field depending on the distance between the electrodes and the voltage between them has been obtained. The amount of deviation of the technological wood chips is directly proportional to the amount of voltage generated between the electrodes of the electrostatic separator and inversely proportional to the weight of the wood chips and the distance between the electrodes. The optimal straightened sinusoidal voltage for the separation of wood chips into high resin and low resin has been determined. An experimental setup has been developed and experimental results are presented. The main modes of operation of the plant for sorting process wood chips in an electrostatic field are determined. The dependences of the effect of tar and moisture of technological wood chips on its deviation in a constant electrostatic field with a free fall are obtained. With an increase in resin content, an increase in the deviation of wood chips in an electrostatic field occurs. It has been established that the moisture content of process wood chips in the range from 7 % to 22 % significantly affects the chip deviation, and in this range it is possible to sort technological wood chips using constant voltage to high and low resin. Technological schemes for sorting wood chips obtained from stump and substandard wood at the enterprises of the wood chemical industry are proposed. The main conclusions and recommendations are made; the main dependencies are given.
Dynamic methods for controlling the weight of the aircraft and helicopter
Authors: Egorov A V , Lysyannikov A V , Kaizer Yu F , Dorohin S V , Kuznetsov A V , Kaidakov A M , Bogdanov E N , Lysyannikova N N 
Published: December 2019

Abstract
Despite the achieved level of development of methods and means of controlling the weight of aircraft, the number of emergencies associated with exceeding the allowable take-off weight of aircraft remains significant. Therefore, the question of the development of new methods for controlling the weight of aircraft, either immediately before take-off in the course of movement along the runway or immediately after take-off at the minimum flight height, remains relevant. This paper presents a scientific and technical substantiation of dynamic methods for controlling the mass of aircraft taking off and helicopters, based on introducing into the flight test program measurements of horizontal (for airplanes) and vertical (for helicopters) aircraft accelerations before take-off (for airplanes) and during take-off ( aircraft) with a maximum take-off weight, and their comparison with horizontal (for airplanes) and vertical (for helicopters) aircraft accelerations measured during operation takeoff (for airplanes) and during takeoff (for helicopters) with an unknown weight, respectively.