bluuebunny/crossref_metadata_2025 huggingface dataset:
Increase of the accuracy and reliability of output parameters determination of vehicle Integrated Navigation Systems
Authors: Novikov P. V. , Sheypak A. A. , Gerdi V. N. , Novikov V. V.
Published: April 2022

Dynamic development of navigation technologies opens up possibilities for the successful solution of a wide range of navigation tasks of mobile objects. For a long time the extension of the scope of navigation systems for transport applications was constrained by their high cost. The emergence of a small cheap inertial sensors, based on MEMS technology have resulted in integrated navigation systems, including the inertial and satellite GPS/GLONASS inertial modules. For solving problems of navigation of ground vehicles the integrated system is combinated with odometer. Nowadays a number of car navigation systems were made including the odometer along with the inertial measurement unit and a receiver of a satellite navigation system. However, most of these systems only exists in the form of models. The article provides the option of constructing the integrated navigation system of a vehicle brought to practical implementation. The analysis of the errors of the navigation system was made. The method of correction of errors due to the damping of the errors in speed with subsequent consideration of the damping of the amendments was proposed. Method is distinguished by ease of implementation and reliability. Correction of the navigation parameters calculated on the base of measurements of inertial sensors and odometer is permissible only when it is known that their accumulated errors have exceeded the corresponding error of the satellite navigation solution. Essentially new to the theory and practice of operation of vehicle is the introduction of a system of criteria characterizing the stability of mode generation navigation parameters. In article the numerical value of criteria-based assessments are of interest to developers of navigation systems, since accounting provides the reliability of the determination of output parameters of the system. The practical value of the presented research results, is that they can be used in the construction of high-precision navigation system of a ground vehicle.
Design of four shaft misaligned semi-automatic transmissions for agriculture tractors
Authors: Sharipov V. M. , Platonov V. F. , Kryuchkov V. A. , Alendeev E. M.
Published: April 2022

When designing semi-automatic transmissions for tractors and automobiles the engineers of machine-building enterprises face the lack of techniques that allow uniquely identifying their design parameters. In particular, when determining the shaft layout in four shaft semi-automatic transmissions with shaft misalignment design with the need to respect the minimum width the mutual influence arises of geometry parameters and design of gears to each other and to the overall width the same time. In solving this problem it is necessary to resort to the use of graphic-analytical method with a large number of iterations that is time-consuming and does not provide a guarantee of repeatability of result. The article describes a technique that allows choosing rational parameters of the basic kinematic units to ensure minimal overall width, and uniquely identify its position in space. Sequence of design of semi-automatic transmission is reduced to the choice of gear ratios and the formation of a rational layout of shafts through which minimizing of its overall width is achieved. It was established that, on the basis of the kinematic parameters of the units it is possible to build a rhombus which completely determines the location of the shafts in semi-automatic transmission. For a complete description of the geometry of the rhombus and its position in space were obtained the corresponding analytical dependences allowing to determine the dimensions of semi-automatic transmission and the distance between the input and output shafts without the use of graphic-analytical method with a large number of iterations. The developed method of design of semi-automatic transmissions can be used to create similar assemblies for automobiles.
Optimization of the engine heat exchanger header with an external supply of heat
Authors: Merkulov V. I. , Ilyin A. A.
Published: April 2022

The paper makes hydraulic calculation of heat exchanger inlet manifold of engine with an external supply of heat.The estimation of uneven fluid flow through heat exchanger elements was made.
Method for determining probabilistic estimates of the specific fuel consumption of a gas turbine engine as a part of arable unit
Authors: Shkrabak V. S , Dzhabborov N. I
Published: April 2022

The article describes the method for determining the probabilistic estimates of the specific fuel consumption of a gas turbine engine as a part of arable unit. When justifying mathematical models for determining probabilistic estimates of the specific fuel consumption of the gas turbine engine, the method of the random argument function of professor L. Ageev was implemented. To improve the accuracy of calculations in determining the probabilistic estimates of the specific fuel consumption of a gas turbine engine correction factors (or functions) and formulas for their determination are proposed. The mathematical expectation of the specific fuel consumption, the inverse of the normally distributed argument, in this case the effective power of the gas turbine engine is not equal to the reciprocal of the mathematical expectation of the argument. This inequality varies depending on the coefficient of variation of effective power, which should also be taken into account when determining the dispersion and the standard deviation of the specific fuel consumption of the gas turbine engine. Experimental studies of arable unit consisting of a gas turbine tractor (GTT) with GTD-350T gas turbine engine and a mounted plow with variable width PNI-8 / 9-40, to verify the reliability of mathematical models of probabilistic estimates of the specific fuel consumption of the gas turbine engine, were conducted in the fields of training and experimental household of the Saint-Petersburg State Agrarian University. The proposed method allows to determine the average and optimal values of the mathematical expectation, variance, standard deviation and coefficient of variation of the effective specific fuel consumption of the gas turbine engine in the composition of various agricultural units.
Proposals for the formulation of law of control for articulated truck activated trailer hydrostatic transmission
Authors: Lepeshkin A. V. , Katanaev N. T. , Mikhailin A. A.
Published: April 2022

The article is devoted to the development of scientifically based methods of creation of systems of automated adaptive control (SAAC) by “intelligent” transmissions multidrive-wheeled vehicles, such as articulated trucks with activated trailing links. The purpose of the studies is to formulate laws of control, the use of which in such SAAC should provide automatic selection in a variety of driving conditions of energy-efficient mode of power distribution between drive wheels. One of the most important issues in this case is to determine the parameters with necessary information content, which control of changes’ nature in the process of vehicle motion will allow SAAC to form control signals, ensuring keeping of the energy-optimal mode of motion in changing conditions. Obviously, these parameters should be the only ones that can be controlled during motion of articulated truck in real operation conditions by currently known and reliable methods. The article contains the results of this research obtained on the basis of the mathematical modeling of steady linear motion of articulated truck with activated trailing link, which wheels’ drive is provided by adjustable hydrostatic transmission in conditions of non-deformable bearing surface. The analysis was performed in the range of change gear ratios of trailer wheel drive when the transmission does not have interaxle power circulation. On the basis of studies the authors revealed the parameters that meet the above mentioned requirements, and also present the proposals for the formulation of control law for hydrostatic transmission of articulated truck activated trailer unit, which usage in the developed SAAC will improve energy efficiency of articulated trucks.
Analysis of the structure of a mathematical model of a piston engine cycle
Authors: Gavrilov A. A. , Gots A. N. , Fomin V. M.
Published: April 2022

The paper analyzes the structure of the mathematical model of a piston engine cycle and proposes a modified version of it, allowing determination of the optimum pressure p in the cylinder. For the analysis the authors used published results of other authors’ studies of work processes for piston engines, working on liquid fuels, and gave recommendations on usage of models for calculation and development of engines. In the considered mathematical model there are used cycle equations of: thermodynamic processes, energy balance, mass conservation, state and known empirical relationships. It is shown that four factors have major impact on changes of pressures p: current volume of the cylinder V; mass of the working body at gas exchange M; supply of heat released during combustion Qx and heat exchange with walls of intracylinder space Qw. The authors analyzed the influence of each of these factors on the change of pressure in a piston engine cylinder. Defining contribution of each of these factors on the pressure change of the working body in the cylinder will purposefully improve processes in a piston engine, providing not only environmental but also efficiency performance. Although the mathematical model is presented in quasi-stationary formulation, it provides the desired results in design studies, especially in fine-tuning engine to the required performance. When calculating the cycle the most important is accuracy of determination of the start of visible combustion (the beginning of heat supply to the working body by the crank angle φf), as well as determination of mixture ignition time delay (MID) τi. Position of the point by crankshaft angle φf relative to the TDC significantly affects indicator performance and cycle efficiency. Angle φf is an adjustment parameter, so its accepted value is included in the original data for calculation of the cycle. The complexity of considering of influence of various factors on the duration of mixture ignition delay led to a wide variety of empirical or semi-empirical formulas for calculation of MID τi, which significantly complicates their selection for a particular model. The analysis made for the structure, conditions and methods for the preparation of formulas for determination of τi (analyzed 19 semi-empirical and experimental formulas of various authors). The heat involved in the heat exchange between the working body and the walls of intracylinder space is calculated by the formula of Newton-Richman. Increments of pressure and temperature in the pipes are calculated in the exhaust and intake pipes. The described model of piston engine cycle was implemented in a package of piston engines and calculation softwares used in scientific research and educational process.
Theoretical study of the static characteristics of automotive friction clutch as the automatic control facility
Authors: Esakov A. E. , Kretov A. V. , Potepun I. V. , Balabanov K. V.
Published: April 2022

Reduction of costs related to automobile operation due to increase of their systems resource is the actual scientific and technical task that can be done in various ways. One of the ways is to use automatics which provide optimal operating modes. It is known that clutch friction pairs of self-propelled machines are less durable components of transmissions therefore above mentioned ideas are especially relevant for them. The disk friction clutch is a system whose state changes during operation due to wear disk pads. Considering it as one of the objects of automatic control of stepped mechanical transmission, it should be mentioned that the change in its state entails a change in the characteristics of work processes flow. If there is no means to address this change or to track and compensate it in automatic control system the algorithm used by system will gradually lose the adequacy to object, which will result the accelerated wear of pads and increase of costs related with both disc replacement and downtime of automobiles during repairs. The presence of clutch elements that have non-linear elastic characteristics in the design allows to assume that this process will have a non-trivial nature requiring to study regularities that in the future will assess their impact on the loading of friction pairs. In this paper, the construction and implementation of appropriate mathematical model solves first of these tasks in relation to the friction of single-disc dry clutch, where pressure is created by the split diaphragm spring with a direct installation.
Experimental evaluation of the loads influencing the rubber parts of track chain with rubber and metallic hinges
Authors: Sharipov V. M. , Barsukov Y. N. , Korostylev S. A.
Published: April 2022

The results of experimental research of loads acting in rubber and metallic hinges of track chain for agricultural tractors of class 3 are shown. Tracked tractor was equipped with a caterpillar with rubber-metallic hinges of sequential type of five towing point variant with restrictor of radial deformation. To determine the forces acting on hinge was used strain-gauge joint and angle relative to the rotation of track chain was defined. In addition, the research was accompanied by a recording of the following parameters: frequency of rotation of the motor shaft, torque on the shaft of clutch, torque on driving wheel, number of revolutions of the drive wheel, number of revolutions of track-measuring device. These parameters were determined during tractor movement at different gears with changing range of hook loads from 15 to 32 kN. Experimental studies and their analysis showed that the restrictor is in contact with the surface of towing point during movement of the tractor in all gears when hooking load exceeds 15 kN, not only in the driving area of caterpillar tracks, but also on the supporting unit. Rubber elements on the contour of the tracked bypass are subject to deformation in the radial direction. The radial displacement is not constant and on free unit values 0.05...0.15 mm and varies with frequency close to track one. On all parts of caterpillar tracks the twisting of the rubber elements is accompanied by a preliminary deformation in the radial direction. The obtained results allow to substantiate the modes of loading rubber components of track chain hinges for bench testing and when calculating the stress-strain state.
The national economy" of the post-reform Nonchernozem center in estimates of noble liberal economist V.P. Bezobrazov
Authors: Zozulya O. A.
Published: April 2022

The article considers a liberal approach to the problem of estimation of prospects of development of small-scale production of Central Russia in the post-reform period, which is reflected in the publications of one of the notable representatives of Russian economic thought - a senator and professor V.P. Bezobrazov. His work is distinguished by deep understanding of the specifics of Russian economic reality, creative search for ways to integrate traditional economy to the industrial paradigm of the second half of the XIX century.
Evaluation of strength of undercarriage of light commercial vehicles with design changes
Authors: Shurygin V. Y , Tumasov A. V. , Orlov L. N. , Sharov D. V.
Published: April 2022

The results of the design study of undercarriage of light commercial vehicle are provided in the paper. GAZ 3302 was selected as object of research. Calculations are made using the finite element method and modern software package MSC PATRAN / NASTRAN of license package University MD FEA Bundle. The models of undercarriage with differ- ent types of settings are developed: euro truck, on-board platform, vehicle carrier. The possibility of extension of the frame of the automobile is considered. The developed model includes: frame, cabin, leaf springs, body superstructure. Models loading mode corresponds to the front right wheel display at full weight of the automobile. Picture of strain distribution and maximum equivalent stress by Mises criterion are gained. The calculation of bending stiffness is made. The obtained results of calculations allow to perform a comparative analysis of the original and extended structures with different body superstructures and to evaluate the degree of change in the stiffness and strength of the system. The re- sults of the research say that extension of the automobile frame within 1100 mm is an increase in stress in the average of 10% and a decrease in rigidity by 15%. The values of the maximum stresses remain within acceptable limits. There- fore proposed design of frame has sufficient strength and rigidity in terms of possible operational loads.
Theoretical evaluation of noise spread of tractive unit
Authors: Dolotov A. A , Pobedin A. V. , Kosov O. D. , Iskaliev A. I.
Published: April 2022

The article considers the possibility of obtaining theoretical evaluation of noise spread of tractive unit, taking into account the spread of sound power values of the individual elements. The distribution function of possible vehicle noise values was obtained.
Post-industrialisation: role of knowledge in the new economy
Authors: Andreeshchev R. Y. , Zenkina E. V.
Published: April 2022

This article shows that post-industrialisation, which started in developed countries in the middle of last century, is gaining strength and is likely to remain the main trend in development of mankind in the beginning of the XXI century and this implies a fundamental change for the whole of economic theory.
Methodology for evaluating the effectiveness of logistics management
Authors: Aleksandrov O. A
Published: April 2022

The article deals with the methodological principles and problems of assessing the effectiveness of logistical management in business organizations. It is shown that the efficiency of the logistics problems of evaluation, selected and justified by its performance, the author presents a model of integral index of evaluating the effectiveness of the logistics management.
Features and benefits of small innovative enterprises
Authors: Gribov V. D , Kamchatnikov G. V
Published: April 2022

The paper discusses the benefits of small innovative enterprises.
The identification of risks in the stages of the life cycle of high technology products
Authors: Sekerin V. D , Aleksandrova A. V , Procenko E. V
Published: April 2022

The article is devoted to the identification of risks in the different stages of the life cycle of hightechnology products aviation applications. Built risk register, a qualitative risk assessment by expert method. Revealed the most significant risk factors and forms of their manifestation.
Information security as a factor in the stability of the integrated corporate structures
Authors: Apalkova T. G
Published: April 2022

The article deals with certain aspects of the sustainability of the integrated corporate structures.The influence of informational impact as a special factor of stability.
Political culture of youth as a factor of innovative development of society
Authors: Dzyurdzia O. A , Skopintseva O. I
Published: April 2022

The article examines main factors influencing the formation of young people political culture in innovative development of society. Nowadays youth parliamentarism is one of the factors in the development of civil society and manifestation of the political culture of youth. In this context, it is vital to maintain a real commitment of youth to be actively involved in addressing various problems facing our society in such a difficult time.
Place and role of regional innovative subsystem
Authors: Kargina A. V
Published: April 2022

The author analyzes the concept of “regional innovative subsystem” with the help of etymology and semantics. The place and role of regional innovative subsystem are defined. The author devel-oped a scheme for formation of regional innovative subsystem in Russia.
Information and innovation-based economic growth as the economic security of the new economy of innovative type
Authors: Gridchina A. V.
Published: April 2022

The article presents retrospectively and evidently presents features of informatization of modern society and economic relations as an engine of economies in the current crisis conditions. The basic directions of informatization of modern society are shown.
P.B. Struve about economic freedom, private property and capitalism
Authors: Golovin Y. B.
Published: April 2022

The article describes the idea of P. B. Struve about economic freedom, private property and capitalism at different stages of his creative evolution. It points to the cultural role of capitalism and the free market economy. It is asserted that economic and political freedoms are connected.
On the issue of competitiveness of Russian advertising in social networks
Authors: Loiko A. O , Alenina E. E
Published: April 2022

In this article, the author discusses the topical problem associated with the ability to determine the target audience when advertising on social networks, which will improve the competitiveness of advertising using effective approaches and modern tools of statistics and Analytics.
Formation of the product portfolio on the example of the trademark "Kores"
Authors: Doroshkevich Y. S. , Vinogradova I. M.
Published: April 2022

The article describes main indicators that characterize the range of office supplies. The algorithm of formation of the product portfolio using ABC - analysis is constructed.
Problems and prospects of double diplomas
Authors: Zubkov V. G , Sekerin V. D , Zaitcev S. A , Zubkov G. V
Published: April 2022

The article deals with the problems of integration of Russian and foreign educational institutions to improve the efficiency of the educational process and the mobility of students. The article deals with the problems and prospects of development of the model innovative educational programs of double diplomas.
Development of Russian automotive industry in terms of crisis
Authors: Loiko A. O , Alenina E. E
Published: April 2022

This article provides an analysis of the automotive industry of the Russian Federation on the basis of which the author encourages manufacturers to increase their competitive advantage with possible growth potential.
Statistics educational potential
Authors: Korgenevskaya E. I
Published: April 2022

Education statistics should reflect the educational potential of the country on various parameters. In modern conditions the total cost of education, professional training is no longer considered as overhead. They are Xia profitable kind of investment. Education creates the potential quantitative and qualitative resources of skilled labor available to the Company in the result of the reaction of the whole educational system of training.
Approaches to manufacturing cost calculation
Authors: Nazarkova E. A. , Sekerin V. D.
Published: April 2022

The paper discusses modern approaches to cost management through manufacturing cost analysis. The example is given to prove the convenience of cost report application. SWOT-analysis of implementation cost report is provided.
Development of new gas engines that meet Euro-5 standards for medium duty trucks based on ZIL V-engine
Authors: Latyshev A. P , Alibekov R. I , Klishin P. V , Shulgin V. V , Konoplev V. N , Sekerin V. D
Published: April 2022

The paper is devoted to development of new gas engines that meet Euro-5 standards for ecologi- cal safety of transport with the possibility of their use in medium duty trucks for urban transporta- tion, small buses, as well as for urban municipal vehicles with low noise levels. The prototype for development of engines was adopted 8-cylinder petrol engine ZIL-508400 with multiport fuel injec-tion.
Improving the efficiency of use of material resources as the basis of sustainable development
Authors: Govorina E. A. , Ostapenko G. F.
Published: April 2022

The article discusses the aspect of efficient use of material resources in implementing the concept of sustainable development at the enterprise level. An overview of current practices of lean manufacturing and the life cycle assessment of the product is provided. The necessity of using indicators of the Global reporting initiative to characterize the efficiency of material and energy resources is justified.
Using interactive methods in teaching the humanities for students of non-core areas of training
Authors: Surov I. A , Pastukhova L. S
Published: April 2022

Forms of material presentation, specific targets on the basis of courses results are actualized for lecturers who are training students of non-core areas of training. This article contains some exam- ples of interactive approaches to work with students, which are used by author in teaching “Sociol-ogy” and “Political science”.
Some measures to support the Russian Federation Industry
Authors: Leiba S. S , Gorohova A. E
Published: April 2022

This article attempts to analyze the state of the Russian industry in its post-Soviet period of de- velopment. Described currently existing sectoral programs to stimulate industry in individual sec- tors. Analyzed HN main provisions of the new federal law "On industrial policy, Russian Federa- tion", as well as mechanisms of Industry Support Fund. Yes HN own proposals to overcome thecrisis tendencies in the Russian industry.
Financial innovations as corporate governance tools
Authors: Zenkina E. V
Published: April 2022

This article shows that financial innovation in corporate governance are crucial. Undoubtedly, in- ternational experience in the field of employee motivation is the potential for Russian companies in all areas of activity. Unfortunately, the possibility of using foreign staff motivation mechanisms forthe Russian corporate governance is impractical in many cases due to absence of tax incentives.
Marketing aspect of development of customer loyalty programs in the context of formation of consumer behavior
Authors: Dudin M. N. , Popovskiy Y. N. , Lyasnikov N. V.
Published: April 2022

The article discusses theoretical basis for development of customer loyalty programs in commercial enterprises. Foreign experience of development of customer loyalty programs and the effect of customer loyalty programs on the efficiency of enterprises are considered.
A mathematical model of treelike actuator of a walking robot considering imposed links
Authors: Kovalchuk A. K , Yarots V. V.
Published: April 2022

Block-matrix model of treelike actuator of walking robot is developed by considering external links imposed. This paper proposes an algorithm of formation of the mathematical model based on the use of matrices (4x4) and graph theory. The authors showed efficiency of its use for walking robots (by example of a bipedal walking robot).
Information Society and Space of Freedom
Authors: Omarova L. B
Published: April 2022

The article posed and solved the problem: interaction of existential and social freedom in the “network” (information) society, the role of information factor in formation of objective and subjective elements of freedom, real and virtual freedom in the Internet space.
Internal PR-technologies as a factor in the formation of a competitive HR-brand
Authors: Guzhina G. N , Guzhin A. A
Published: April 2022

The article describes the role of internal communication in the formation of an attractive employer brand. Particular attention is paid to measures that increase employee job satisfaction and maintain the image of the organization as a good and reliable employer.
The use of outsourcing to improve innovative capacity of domestic enterprises in conditions of globalization
Authors: Mandrik N. V.
Published: April 2022

The problems of improving the innovative capacity of enterprises through the delegation of authority to specialized organizations using outsourcing are considered.
Automotive market in Russia: from crisis to crisis
Authors: Omelchenko S. V.
Published: April 2022

The article discusses the development of domestic automotive market from 2008 to 2014. The forecast of its further development is given.
Legal state or change of priorities: analysis of messages of the President of the Russian Federation to the Federal Assembly
Authors: Marzak G. A.
Published: April 2022

This article analyzes the messages of the President of the Russian Federation to the Federal Assembly of the Russian Federation with regard to the legal state and civil society in Russia The article deals with topical issues of the practice of lawful state formation in Russia. It is concluded that all Russian heads of state recognized importance of creating conditions for development of civil society.
Time-marketing techniques in the management of human resources and competitiveness of enterprises
Authors: Kisileva E. M , Guzhavina A. O
Published: April 2022

The article considers modern technologies of time management of personnel in order to increase the company's attractiveness on the labour market and its competitiveness.
Construction of multi-parameter Lyapunov function for a nonlinear system
Authors: Ogurtsov A. I
Published: April 2022

In this paper, the system with two non-linearities, one of which is the multiplicative, constructed Lyapunov function containing 5 variable parameters. There is indicated possible application of this function to locate the region of asymptotic stability of the zero solution and optimization of thetransition process.
Constitutional and legal regulation of use of languages in activities of government bodies and local authorities of the Russian Federation and Estonia
Authors: Machinskaya D. A
Published: April 2022

The article deals with constitutional and legal regulation of the use of languages in activities of government bodies and local authorities of the Russian Federation and Estonia. The article conducted the detailed analysis of the legislation of the Russian Federation and Estonia. It is shown that special attention from the state paid to the use of languages in activities of state authorities and local self-government. This problem is studied not enough and requires further research.
Logistics optimization of an industrial warehouse
Authors: Samsonov V. S. , Kurmaev R. A.
Published: April 2022

The article discusses the experience of the comprehensive modernization of equipment and implementation of automation of business processes management in an industrial plant.
Research of Democritus teachings on necessity, chance and possibility using means of modern logic
Authors: Ivlev V. Y
Published: April 2022

The article studies the categories of necessity, chance and possibility modality. Logical calculus is constructed, where formalization of these modality categories is made.
The psychological aspect of language interference
Authors: Alimov V. V
Published: April 2022

The article refers to the psychological aspect of interference. Perception of the text for translation is based on a number of attributes that are compared by a communicant with available in his memory standards: lexical, grammatical, stylistic and others, acquired during training and practice.
Development trends in the development of quality management systems in education
Authors: Shamgunova A. D
Published: April 2022

Development of quality management systems of higher and secondary educational institutions in accordance with the requirements of international standards ISO 9000 is the most reliable trend ofquality and competitiveness of offered works and services.
The role of the referential component in teaching Russian as a foreign language (intermediary language)
Authors: Artemyeva Y. V
Published: April 2022

The article discusses the role of referential component in teaching of Russian as a foreign language (intermediary language). It is set based on theoretical and empirical analysis. Conscious use of referential component in teaching Russian as a foreign language improves mastering and presentation of didactic material. Application of the results: education system
On the essence and principles of innovation infrastructure engineering companies
Authors: Alenina E. E , Tsogoev V. G
Published: April 2022

The article suggested the definition of innovation infrastructure engineering enterprise, formulat- ed the principles of its formation and development.
Modernization, diversification and crisis strategy of Russia
Authors: Filiakin Y. P.
Published: April 2022

The article deals with the problems of modernization and diversification of the economy, the need to overcome ideology of business and financial and commercial approach and replace it on the production and economic approach, the basic elements of Russian anti-crisis strategy.
Factors of increasing the competitiveness of the Russian economy
Authors: Novichkov V. I
Published: April 2022

In the written article talks about the main factors increased competition and competitiveness. I think this topic is most interesting to modern society.
Transverse compression of a two-layered elastic plane with a circular hole on the border between layers
Authors: Mazin V. A , Mikhaylova V. L , Sukhomlinov L. G
Published: April 2022

The results are presented on the stress distribution in a transversally compressed two-layered elastic plane with a circular hole on the border between layers, received by using a variational fi- nite-difference procedure for solving plane elastic problems for the holed rectangular domains. The effects of the layers' elastic constants on the level of stresses around the hole are examined.
Definition of optimum parameters of workpieces and superplastic forming and isothermal stamping operations for the manufacturing of thin-walled details of gas-turbine engines
Authors: Temis J. M , Khudyakov A. P , Cherednichenko A. V
Published: April 2022

The technique of mathematical simulation of isothermal stamping and superplastic molding for determination of optimum parameters of work pieces and manufacturing operations is presented. Application of the technique for thinwalled case and hollow vane manufacturing are shown.
The approach to modeling the process of information exchange on the TCP, based on the theory of finite Markov chains
Authors: Tsymbal V. A , Efimova I. A , Toiskin V. E , Ryabtsev S. V
Published: April 2022

The paper presents an approach to modeling the process of information exchange over TCP pro- tocol.
Computer-aided design of gas turbine engines rotors
Authors: Bondar V. S. , Alkhimov D. A. , Fakeev A. I. , Temis Y. M. , Yakushev D. A. , Pestov A. V.
Published: April 2022

The technology of the optimal design when designing the structure of the rotor disc for turbomachines is showed. The features of the organization of computer-aided design of gas turbine engine rotor are considered. The calculations of gas turbine engine rotor parts optimal form were made. Structural optimization (shape optimization) was applied to optimal design of compressor disk depending on various factors of loading and optimization criteria.
Long-term strength criterion based on V. V. Novozhilov concept of loosening
Authors: Arutyunyan R. A.
Published: April 2022

The kinetic equation for the rate of creep parameter of continuity and long-term strength criterion was formulated on the basis of experimental studies results of density changes in high-temperature creep of metals and taking into account the law of conservation of mass. A comparative analysis of obtained solutions with the relevant results was made according to Kachanova-Rabotnova concept of damage.
Criteria for long-term strength of compressible viscoelastic medium aging
Authors: Arutyunyan A. R. , Arutyunyan R. A.
Published: April 2022

The paper considers problem of damage and long-term strength of polymeric and composite materials with a ductile-brittle mechanical properties. The modified Maxwell equation written in the scale of the effective time and Boltzmann-Volterra equation of hereditary viscoelasticity are used. Parameter of continuity (of damage) is determined by the relative changes of density, which is an integral measure of the accumulation of structural microdefects in the long process of loading. The kinetic equation for continuity parameter is formulated and interrelated system of equations of creep and damage is analyzed. Analytical relations for creep, continuity parameter and criteria of long-term strength are obtained.
Preliminary tension as a way to reduce damage accumulation under cyclic loading
Authors: Artykh V. G. , Korikhin N. V. , Melnikov B. E. , Semenov A. S. , Raimberdiev T. P.
Published: April 2022

The article shows how, by changing cycle asymmetry factor using prestress, it is possible significantly increase the fatigue strength of parts or even eliminate its fatigue failure, which is especially valuable for the consumable components of safety devices.
Conflicts and their impact on competitiveness and innovation development of organization
Authors: Bohanzeva I. A , Elizarova N. S
Published: April 2022

The essence of the conflicts is simple - or they loosen system, or strengthen it even more. In this article influence of a conflict situation in the organization on all "organism" of firm, and what consequences of its presence in relation to such factors as the competition is analyzed.
Assessment of innovative activity of the North-West Federal District of Russian Federation
Authors: Moreva U. B , Shirokova L. V
Published: April 2022

This article examines the state of the innovative activity in the North-West Federal District, deals with the problems of economic transition and the reasons that hinder innovation processes. The article also provides recommendations to ensure the support of innovation activities in the territories of the North- West Federal District.
Research of tubular samples on stretching (plane deformation)
Authors: Filippov Y. K , Zaytsev A. G
Published: April 2022

The article presents the technique of research of a plane strain condition of material by stretching of a tubular sample on a chuck. Experiments are made and thickness change diagrams for stretched sample are submitted. It is shown changes of deformation of destruction depending on wall thickness of a stretched sample for materials 20H and D16.
Fluctuations in systems with a discrete number of degrees of freedom with dry friction
Authors: Pozhalostin A. A. , Panshina A. V. , Kokushkin V. V.
Published: April 2022

The approximate analytical for solving problems of forced oscillations f mechanical systems with discrete degrees of freedom, taking into account dry friction forces. Dry friction is replaced by an equivalent viscous resistance. For this purpose, the method of own functions for systems with discrete degrees of freedom is used to allow replacing the original system with some equivalent system. Thus there is postulated the equality of frequencies of original and present systems. The proposed method is illustrated by the example of the oscillating system with two degrees of freedom.
Determining of parameters of nonisothermal cyclic curve model
Authors: Temis J. M , Fakeev A. I
Published: April 2022

It was proposed methodology of determining parameters of model of nonisothermal cyclic stress-strain curve. Algorithm of pattern recognition was implemented. It was based on minimization of function of mismatch between experimental results and calculation of three-parameter model curve which depends on Bauchinger’s effect, elastic unloading modulus and scale of transformation of nonlinear part of stress-strain curve. Odkvist’s parameter was used for measure of plastic deformation. Simulation of cyclic stress strain curve was carried out. Results of simulation were compared with experimental data.
Supplementary stress method convergence rate acceleration
Authors: Lazarev A. A
Published: April 2022

Efficiency of supplementary stress method convergence rate acceleration by Aitken δ 2-method is shown using BEM for beam elastoplastic torsion problem solution as example. Aitken method with two iteration before relaxation and Aitken method with relaxation in each iteration step convergence rates were studied numerically.
The concept of averaging of stresses in the problems of the two-parameter fracture mechanics
Authors: Matvienko Y. G.
Published: April 2022

The article illustrates the application of the Neuber-Novozhilov concept for averaging of stress to before tip of a crack/cutout in solving of contemporary problems of two-parameter fracture mechanics, aimed at creation of models and criteria of body limit state and search of a crack path. As a parameters of tightness strain in the vicinity of the crack tip are used nonsingular components of T-stresses of the stress field.
Physicochemical properties of engine oil mixtures with SUPROTEC lubricating composition
Authors: Akinina A. I , Bernatskiy V. V. , Khodiakov A. A , Abdel Sater R. I
Published: April 2022

The results of study the engine oil mixtures with SUPROTEC lubricating composition are pro- vided in paper. It is shown that effect of the lubricant composition on physicochemical properties of the engine oil is negligible. It is suggested that this effect is not related to properties of oil-ultrafineparticles system, which performs a role of carrying agent in the composition.
Design of small-sized experimental-industrial profile-bending machine
Authors: Shpunkin N. F , Tipalin S. A
Published: April 2022

The article is about a small-sized experimental-industrial profile-bending machine of new design intended for further researches, production of thin-walled profiles and use in educational process. The authors proposed to create the first stand with indenters extruding service grooves in tape to reduce losses for excess deformation and friction, as well as to simplify configuration and reduce the cost of tooling.
Electromechanical system for providing continuity summing power to the driving machine when shifting gears in transmission of a vehicle
Authors: Gorbatovskiy A. V , Kotiev G. O , Chulyukin A. O
Published: April 2022

The paper provides description of mathematical models of the transmission with an electrome- chanical system for providing continuity summing power to the engine when shifting gears, and the traditional transmission, which allow studying automobile acceleration characteristics. The resultsof computer modeling of process of a gear shift for the considered designs are shown.
Design and calculation of double-flow hydromechanical transmission
Authors: Kotiev G. O , Sharipov V. M , Shchetinin Y. S , Vyaznikov M. V , Gaev S. V , Rozenoer M. G
Published: April 2022

This article describes a method of designing and calculating of double-flow hydromechanical transmissions, widely used in modern transmissions of wheeled and tracked vehicles. The authors considered harmonization of the load characteristic of the double-flow hydromechanical transmis- sion with an external high-speed characteristics of the engine. The advantages of double-flow hy-dromechanical transmission compared to single-flow one.
Experimental study of axisymmetric molding of multilayered material
Authors: Tipalin S. A. , Petrov M. A. , Kosachev N. Y. , Shpunkin N. F. , Ponomarev A. N
Published: April 2022

The paper describes experimental study of axially symmetric forming method of Eriksen. The authors determined the limiting strain of multilayer elements to fracture the integrity of individual layers. During experiments authors modified contact conditions of interaction of a tool and a layer. Obtained experimental data by power parameters of process.
The role of the Russian-Chinese investment cooperation in ensuring the competitiveness of countries
Authors: Shkaeva A. G , Zenkina E. V
Published: April 2022

The article tells about the transition of the Russian economy on an innovative basis. It is the foundation of improving the competitiveness of our country and Russian products on world markets. The cooperation between Russia and China is important role of the development of national innovation sphere.
Alternative method of geometric parameters measuring of throttle channels of circular cylindrical shape
Authors: Kuznetsov V. S , Yarots V. V
Published: April 2022

The use of throttles as elements of control devices in hydraulic drives requires them to ensure the possibility of pressure dependence on the flow of the working fluid of the desired type. To establish this dependence it is necessary to know the area of the opening at the inlet of the throttling passage. However, the direct method to measure the actual value of this area resulting from the manufacture of the throttle channel is not always possible. The article presents the evaluation of the possibility of using the alternative method of determining the area of the entrance to the throttle channel of circu-lar cylindrical shape.
Features of formation of the structure of turbine blade casted with given crystallographic orientation
Authors: Petukhov A. N.
Published: April 2022

The paper discusses the features of formation of structure of single-crystal turbine blades casted with predetermined crystallographic orientation, allowing to obtain higher performance properties compared to conventional equiaxed structure.
Some features of innovative processes in the military-industrial complex of the country
Authors: Boev S. F , Stupinin D. D , Sukhareva A. N
Published: April 2022

Considered and justified in principle an opportunity for the defense industry is the engine of innovation development of the country. The problem of institutional and resource support for Russia's innovative development through new projects and developments in the interest of national security.
Study of step charge of capacitive energy storage systems for electric starter
Authors: Maleev R. A , Shmatkov Y. M , Kapralova M. A
Published: April 2022

The paper proposes the use of the stepped charging of capacitor energy storage to enhance charge efficiency of electric starter systems with a capacity storage and a battery.
Methods of improving the reliability of dump trucks hydraulic system
Authors: Kuznetsov A. V , Shalkov A. V
Published: April 2022

Paper studies the problem of nonfailure operation of dump trucks hydraulic system that is ex- ploited in the continental climate. To analyze the negative factors affecting the operation of the hy- draulic system a systematic approach has been used, based on the methodology of SADT structural analysis. The result identified that the major negative factor is instability of kinematic viscosity of working fluid over a wide range of ambient temperatures. There were developed the technique of adjusting kinematic viscosity of working fluid and the technique to improve reliability of dumptrucks hydraulic system.
Simulation of gear change in transmissions of agricultural tractors
Authors: Gorodetskiy K. I. , Shuvaev D. N. , Alendeev E. M. , Muratova S. K. , Melnikov A. Y.
Published: April 2022

The paper deals with the gearshift modeling process in transmissions of agricultural tractors and the method of sectionally continuously variation of tractor speed, based on the rational choice of using only a small range of adjustment characteristics of the engine where the power does not drop below minimal and fuel economy is maintained.
The use of composite materials with protective coatings in air conditioning units
Authors: Merkulov V. I , Nagaytsev R. Y
Published: April 2022

The article contains an analysis of the use of advanced composite materials in air transport sys- tems and recommendations for the use of these materials in the construction.
Investigation of effect of cyclic fuel delivery on start mode of small-sized diesel engine CH8,5 / 11
Authors: Dadilov A. S.
Published: April 2022

The article considers the possibility of improving starting characteristics of small-size diesel engine type CH8,5/11 by replacing vortex combustion chamber by piston combustion chamber. The authors present the formulas for determination of optimum amount of cycle fuel supply in diesel engine start mode, fuel vaporization in start mode in volume and from the wall of a cylindrical combustion chamber. Results of experimental studies show the influence of cycle fuel supply on duration of small-sized diesel start-up.