Table of contents

Abstract

International Scientific Conference "Innovative engineering technologies, equipment and materials - 2017" has been hosted by the exhibition center "Kazan Fair" within the framework of the 17th international specialized exhibition "Mechanical engineering. Metalworking. Kazan »and 11th specialized exhibition" TechnoWelding" on the 6th and 8th of December, 2017.

The conference program was including 6 sections of work:

Section 1 - Innovative materials, technologies and equipment in mechanical engineering

Section 2 - Innovative developments and economics in engineering

Section 3 - Chemical Engineering

Section 4 - Mathematical and physical modeling of information, technical, technological and management systems and processes

Section 5 - Innovative Welding Technologies in Industry

Section 6 - Innovative developments of small and medium enterprises

Participants and guests of the conference discussed the scientific and technical achievements in the field of development, design and manufacture of engineering products. See the results of studies of the country's leading universities in the field of robotics, new materials (including on the basis of production waste), waste management and recycling, mechanical engineering, energy, fuel cells, manufacturing economy.

Presidium of the session "Innovative development of mechanical engineering and economics" headed by Director of the Institute of Engineering Prof. Nail Faikovich Kashapov. The Presidium also included: Deputy. Director of the Institute for educational activities Ildar Hafizov Ilsurovich and Deputy. Director of the Institute for Science Gilmanshin Iskander Rafailevich.

Research and Innovation have been presented by the staff of the Engineering Institute of KFU, Institute of Naberezhnye Chelny, Institute of Chemistry named after A.M. Butlerov, Institute of Management, Economics and Finance, Kazan State Power Engineering University and Kazan National Research Technical University named after A. N. Tupolev – KAI

Active participation in the conference were graduate students and students of the Engineering Institute. The experience of live communication with scientists, practitioners, representatives of the real economy will allow buduyuschim experts to determine its scientific direction for a successful solution of important problems of import substitution and enhancing competitiveness assigned to the engineering industry of our country.

All papers published in this volume of IOP Conference Series: Materials Science and Engineering have been peer reviewed through processes administered by the proceedings Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.

The article deals with the problems of waste management methods, which do not cope with the task of ecological utilization of solid waste. Based on the analysis of literature data, the following is presented: the morphological composition of solid waste, the block diagram of a laboratory waste gasification plant. And also a set of equipment characteristics for the modernization of a laboratory installation of plasma gasification.

Nanoparticles according to the method and technology including metal-carbon particles, particularly particles of a ferromagnetic metal or alloy encapsulated in graphitic carbon are suitable for use as a detectable moiety for imaging by the method of a magnetic resonance and fluorescence, drug delivery, cell marking and for local thermal therapeutic treatment such as hyperthermia.

The pulsatile stimulation technique (near-wellbore area) is an effective method of hydroimpulsive well treatment in oil production. The results of testing a pilot sample of a mobile pulsation unit at injection wells are presented, with an increase in injection capacity 3-4 times and other positive effects (well pressure drop, chemical composition change). The obtained results confirm the effectiveness of pulsation effects and create the prerequisites for the development of complex energy-saving ways of oil well treatment.

The article deals with methods of increasing the working capacity of parts due to the improvement of structural condition of the surface. There were analyzed the characteristic features of the borating method and plasma-electrolysis processing, the necessity for joint use of these methods. On the basis of the review the author suggests the application of plasma-electrolysis boronizing of parts. By increasing the working capacity of parts due to the improvement of structural condition of the surface by means of borating method and plasma-electrolysis processing, it is possible to use more rational application of alloyed materials for manufacturing various parts that have high physical and mechanical, operational characteristics, which is certainly actual for modern machinery production.

The article deals with steel triangular lattice towers with a triangular or diagonal bars for the construction of supports of transmission lines, poles wind generator installations, supports for the placement of lighting equipment. For these constructions have become consumption depends on the geometric parameters of cross-section. Therefore, to reduce the consumption of steel must be assigned the optimal value of parameters such as the height of the cross-section, angle braces. For these supports, an analytical expression of the masses. From the condition of a minimum weight of a formula for determining the optimal height of the cross-section triangular lattice towers. the equations and the graphs allow to determine these parameters to determine the optimal tilt angle braces and supports a triangular lattice truss. The value of the optimal angle for the supports with a triangular lattice is α_opt = 68°, and for bearings with diagonal bars α_opt = 63°.

This article provides an evaluation of the applicability of the evaporative cooling system of air supplied to the cooling tower in order to reduce the temperature of the cooled water at the outlet from the cooling tower in the conditions of the third climatic zone of the Russian Federation.

In this article, a method is considered to increase the efficiency of boiler room operation with PTVM-180 boilers by the use of a flue gas flue in a condensing economizer. The efficiency evaluation of the utilization of the heat exchanger in accordance with the operating mode of the boiler house was evaluated, and the technical and economic parameters of the project were assessed, depending on the unplanned changes in such key factors as capital costs, operating time, operating mode.

Nickel is the basis of most of the heat-resistant materials used in the aerospace industry for power plant parts. Recently, the method of electrolytic coating with nickel is used to create protective coatings on aluminum, magnesium, zinc and cast irons. It is known to use the method of nickel plating of aluminum and magnesium alloys, in particular to protect the duralumin blades of screw aircraft. The lifetime of nickel-plated cast-iron drums for drying in paper production is significantly higher than in conventional cast iron, and paper quality is also improving. The aim of the work is to influence the concentration of hypophosphite on the kinetics of the cathode process and on the properties of the resulting nickel coating.

An overview of machinability by cutting cast irons is given. The effect of the microstructure of cast iron on the tool's working capacity during cutting has been studied. The reasons for the tool failure during drilling are revealed.

The paper deals with the problem of assessment of the state of a technical system described by first-order differential equations whose parameters change over time according to a certain law. The conditions of solvability of the synthesis problem in terms of matrix canonization technology are formed. An algorithm is proposed for calculating the coefficients of the state observer of the luenberger type, providing an asymptotic tendency to zero of the assessment error.

The article considers the results of theoretical studies of the stress-strain state of an eccentrically compressed element reinforced with a reinforced concrete cage. The theory of composite rods is used as a theoretical basis. As a result of the solution of the theoretical problem, analytical expressions are obtained for determining the normal stresses in the cross-section of the reinforced element and tangential stresses along the contact seam. The results of the calculations for the proposed approach are compared with the previously performed research results.

The article considers a range of issues related to ensuring the compatibility of prefabricated and monolithic concrete in the case of reinforcement of eccentrically compressed elements with reinforced concrete cage. A calculation expression is presented to determine the required thickness of the gain from the condition of ensuring the strength of the shear joint. The main design expressions for testing the strength of the contact seam in the case of using keys and reinforcement by transverse reinforcement are considered. Based on the proposed theoretical premises, a program of experimental studies has been developed.

The processes of agglutination and coalescence of a softened (liquefied) coating material of microspheres are considered both in the absence of an external influence and in its presence. The periodicity cell is singled out, the dynamics of the change in the form of the interface between the liquid and gas phases is described. The thermal and mechanical effects are marked out as external factors leading to shrinkage of the microspheres layer with coatings. Relationships for estimating the shrinkage of the periodicity cell and determining the influence of the named factors, viscosity, and surface tension on the porosity of the layer material are presented.

Heat transfer in the syntactic carbon porous materials is considered. A number of assumptions regarding the microstructure of these materials and the corresponding mechanisms of heat transfer are made. Relations to estimate the effective density, heat capacity and thermal conductivity of the materials taking into account the radiant heat exchange between the matrix elements are given. The behavior of these parameters depending on the structure, properties, and components of syntactic porous material is analyzed.

The results of mathematical modeling of the thermal processes that occur on contact of the melt with a layer of polymer material located on the surface of the hollow microspheres are presented. Dependencies that allow estimating the melting time of the given layer and other parameters of interest in the production of articles from syntactic materials were obtained.

The influence of additives of natural sulfur-organic compounds on the thermal stability of the oil fraction of Arlan petroleum in an electric field is studied.

It has been established that the introduction of additives of natural sulfur-organic compounds into the petroleum fraction leads to a decrease in the formed solid sediment and acid number, which indicates an increase in the dielectric characteristics of the oil and an increase in its thermal stability in the electric field.

The optimum amount of addition of natural sulfur-organic compounds in an amount of 0.5% reduces the amount of water-soluble acids formed, and, consequently, also the aging of the oil.

On model mixtures it is studied the solubility of water in transformer oil in the presence of suphur-organic compounds of the general formulas C_nH_2n−11S, C_nH_2n−7S, C_nH_2n−5S, from 0,6 to 3,0% concentrations. It is established that the greatest dissolving ability of water in model mixtures have suphur-organic compounds s of the general formula C_nH_2n−11S due to the greatest recurrence they have.

Production technology of products based on the syntactic carbon foams designed to operate in extreme conditions is proposed. The components and regime parameters for the production of foams of an open-pore cellular structure with specified thermophysical and strength characteristics for manufacturing the large-sized products of complex shape are determined.

The production technology of syntactic carbon foams based on the phenol-formaldehyde binders and microspheres was developed. The influence of the composition and regime technological parameters on the change of the physical-mechanical properties of foams was investigated.

The article deals with the possibility of using an intelligent control system for the parameters of the technological process of precision stamping and mechanisms of crank hot-stamping presses.

The types of contradictions arising in the process of explaining science phenomena and processes in engineering education were considered. The authors proves the possibility and the stages of formation of scientific thinking of the students of the engineering directions at classical universities through the analysis of these contradictions.

Distinctive characteristics and disadvantages of electronic resources are distinguished. The structure and specificity of the developed author's practice-oriented electronic educational resources are considered. The application of e-learning technology as an active student-centered training for building individual educational trajectories in university education is substantiated.

It sets out innovations in formation of the future chemical engineering elite in the lyceums for gifted teenagers created at universities. Such as Small Chemical Institute, professorial lectures, professorial schools, professorial mentoring, regular trips to the enterprises of petrochemical complex of Tatarstan, the scientific community lyceum students. The results of additional education in chemistry are presented in the form of convincing victories lyceum students at the various olympiads and conferences.

Mathematical and computer models for the motion of a hybrid heavy truck in conditions of wheel slip have been developed. Algorithms for the redistribution of the torque between the wheels to provide controllability and stability of motion along the guided path have been proposed. The efficiency of the developed algorithms is confirmed by the results of computer simulation in the MATLAB / Simulink system.

In this paper, the influence of the parameters of pulsations on the heat transfer in tube bundles was considered. An analysis of the influence of the parameters of pulsations on heat transfer was carried out by empirical correlation. A new empirical correlation is proposed for calculation of external heat transfer in under of pulsating flow in tube bundles with different configurations. The maximum deviation of the empirical correlation with the data of the numerical experiment was 16.9%.

In this paper the energy efficiency of pulsating flows during of enhancement heat transfer in a shell-and-tube water oil cooler was studied. A device for enhancement heat-transfer in an oil cooler based on a hydraulic system and a hydraulic cylinder is developed. A shell side flow of the oil cooler underwent pulsating. A Reynolds number of the oil flow based on the outside diameter of the tube was Re_oil = 658, a number of Prandtl Pr_oil = 293. It is established that with increasing frequency and relative amplitude of pulsations, an increase in heat transfer commensurate with increasing power consumption. It is shown that the energy efficiency of asymmetric pulsations is higher in comparison with the symmetric pulsations.

Determination of the thermal and hydraulic efficiency η is one of the ways to assess the effectiveness of the method used to intensify heat transfer. In this paper, the hydraulic fluid efficiency of diamond-coated tube bundles is determined for a pulsating flow of a heat carrier. The Reynolds number was based on the outer diameter of the pipe and was Re = 100, the Prandtl number Pr ranged from 214 to 363. It was shown that an increase in the dimensionless amplitude β, frequency f, and pulsating ratio ψ leads to a decrease in thermal and hydraulic efficiency. The influence of the Prandtl Pr numbers on the thermohydraulic efficiency was also analyzed. It is shown that an increase in thermal and hydraulic efficiency is observed with increasing Pr.

Today, innovation is a powerful engine of social progress. Innovations determine economic growth in the all spheres of state activity through constant introduction of new technologies, products and services into production, which leads to reduction of dependence on imports of technologies, materials and consumer goods. Effectiveness development of enterprises in dynamically changing external and internal environment that requires constant innovation of production and management technologies depends on the existing intellectual property and the possibility of its generation in the foreseeable future. The intellectual property acts as a binding component of the scientific and industrial spheres, is a factor of increasing the innovative activity of the economic entities. The article proposes the principles of formation and development of the intellectual property of an economic entity, such as: efficiency, planning, dynamism, objectivity, balance, circulation of the intellectual property, synergy, rational transparency and minimization of transaction costs. Necessity of each principle of formation and development of the intellectual property of the economic subject is proved. On the basis of synthesis of approaches existing in scientific literature the author's definition of intellectual property of the economic subject in which presence of these principles is designated is offered. The article substantiates that the intellectual property has a direct impact on the activation of innovation processes due to the fact that intellectual property is the main "driver" scientific research, contributes to activation the processes of territorial and inter-sectoral transfer of innovation, contributes to the processes of industrial cooperation for create new innovative ideas and projects.

Boriding in powder media is successfully used to increase the life of parts. To increase the depth of the diffusion layer and improve its properties, a method for activating the surface of a saturable part by means of electromechanical processing is proposed. The results on the structure of the resulting layer and its dimensions are presented.

The paper describes a method for purification of waste water in a hydrocyclone by solid phase particles. To achieve more efficient cleaning, a technique is proposed for calculating the separation processes in hydrocyclones based on the equation for the radial motion of a particle associated with an air bubble.

The paper presents a theoretical one-dimensional model of the dynamics of adsorption in a fixed layer, taking into account the first-order chemical reaction. The general case is considered when the resistance to mass transfer is concentrated both in the external and internal phases.

A mathematical model of cooling system with a vapor-liquid compression unit is presented. The modeling of dynamics of the parameters of the vapor compression system during the system start-up in the cooling mode was carried out. It is noted that with the accepted assumptions the evaporation and condensation temperatures stabilize fast enough: in the evaporator - in 0.5 s, in the condenser - in 2 s.

There was conducted the synthesis of the automatic control system with time-delays for multivariable plants in terms of input terminal and the state based on the system embedding technology. To reproduce the plant state vector the compensatory-observation scheme was used, compensating temporary time-delays in controlling. Illustrated by multivariable model of the internal combustion engine the law of control was realized.

The relevance of the study of the impact of the introduction of robotics to improve production efficiency is that it affects the level of development of domestic engineering. The article offers an economic justification of the use of the robot to automate the process of electrochemical machining of workpieces, in order to improve the quality of parts and improve production efficiency

The implementation of any culture is the basic processing of soil are given great attention, as it largely affects the water-physical, biological and agricultural properties of the soil that ultimately determines yield.

The article presents materials for the production of grain sorghum food products that allows you to completely eliminate from the diet foods containing gluten, vegetable oil from germ of grain sorghum, nanocellulose, tannin, amylopectinosis sorghum starch and glucose-fructose syrup.

In most regions of the Russian Federation today has a highly developed agriculture and processing enterprises, respectively with a high concentration of resources for production of biogas. On the Volga and southern districts account for a total of about 58% of the biogas potential. In the processing of all waste of agriculture and processing enterprises can fully supply gas to rural areas.

The problem of conformity of technical equipment and the number of employees in the agricultural enterprises arising in the process of modernization of the agricultural sector. As a means for evaluation of technical equipment are invited to use a special type of production functions, the distinctive feature of which is the simultaneous display of the micro - and macropaedia industry.

The technological components of the measured deviation of the accuracy index that arose during machining are ordered. Mathematical models have been developed to predict their magnitude during processing and also to find the causes of identified nonconformities in production, the components are ranked using the Pareto diagram.

Authors have considered the problem points connected with commercialization of university intellectual property items in the field of electrochemistry, namely the device of electrochemical cutting of conducting materials. Key criteria for evaluation of an intellectual property item are designated. The method of calculation of commercial appeal which is most acceptable for this development on the basis of the generalized integrated coefficient, theoretically is offered and its commercial value is almost proved.

In this article, the polymer polydiphenylenphthalide. The estimates of the mobility of charge carriers for FDP films of different thicknesses by the CELIV method are carried out. During the measurements it was concluded that the mobility value does not depend on the thickness of the polymer film within 100-800 nm.

The relevance of the study of the current state of electrochemical production is that electrochemistry every year is becoming increasingly important in the domestic industry. The development of electrochemical methods of processing leads to an increase in both the processing capacity and the achievement of new technical effects, significantly increasing the strength, durability and other performance parameters of the parts.

Boundary layers of the mold used for castings from titanium have been investigated by the method of electron microscopy with a system of probe microanalysis. Migration both components of mold and additives of titanium alloy is established to the surface layers of the form.

In modern conditions auto components domestic manufacturers should not only improve the quality of products to the world level, but also provide the greatest possible profit. As a result, a technique for developing modern technological documentation was proposed. In the framework of this methodology, requirements to modern technological documentation have been developed, factors of profitability decrease in the APQP project cycle have been identified, work grouping providing the best results for the APQP process stages has been grouped, technological information as the basis of enterprise management has been worked out, technological design and technical documentation processes have been developed, scheme of the process of technological design. In the paper, the key control characteristics of technological transitions are systematized, the principles of management of the preparation of production (technological design) based on technical documentation are formulated. The developed measures allow at the stage of technological design not only to obtain information for managing the auto component quality, but also to prevent potential losses, that is, to increase the profitability of the project.

The article studies the issues of static elastic deformations that appear during processing on milling type machines. The method of determining the principal axes of strain is observed.

This paper discusses the methods of oil transportation through pipelines. Particular attention is paid to the processes of complex rheological behavior of high-paraffin crude oils. Optimal methods applicable for transportation of heavy oil with the help of intensifiers are revealed.

This paper discusses the problem of how to integrate natural-science, humanist and special technical knowledge in professional university-level training of transport specialists being a rapidly developing sophisticated system. This engages current science concepts of self-organization and self-development of sophisticated natural and man-made systems.

This paper discusses the approach of how to intensify the heat exchange processes under laminar flows of high-viscosity non-Newtonian fluids with the use of auger inserts. This approach of intensification refers to the methods of swirling the flow, which creates a rotational motion of the fluid throughout the entire duct cross-section being most relevant to the high-viscosity fluids.

The paper presents a description of the method of hardening the working bodies of agricultural machines, working in conditions of abrasive wear. The method includes vibro-arc surfacing of nanometallokeramic composite powder materials with simultaneous thermal diffusion hardening. The optimal composition and concentration of components of the material, ensuring the best physical and mechanical properties and resources of the hardened working bodies tillage machines.

This paper discusses the aspects of target energy monitoring structures at the production companies and facilities of housing and communal services.

The paper presents an analysis of the possibility of using electric erosive machining when restoring splined surfaces on specialized equipment.

The design of a multistage transmission for heavy trucks (patent No. 2508486) designed to implement the national program of import substitution in transport engineering in Russia. The main technical results implemented in the design of multi-stage gearbox.

This article deals with problem of renewable enery resource studying during laboratory works of Power Engeneering students (bachelors and masters levels). Hardware and sofware RTDS complex is considered as a base of lab works. Solar panel (PV module) is considered as an example of renewable source. Plan of lab work, which is connectd with practical using, is offered.

The results of the research of solubility of die-cast steels in silumin AK12 (AL2), depending on the chemical composition, method of refining, thermal and chemical-thermal treatment. Perspective marks of steels for the manufacturing molds pressure die-casting aluminum alloys are established. The expediency of application for the press-tools of cast alloys, ni-triding and methods of arc-plasmous and electroslag remelting on the example of steel DI – 22 is shown.

The results of the Fourier spectroscopy of the acoustic noise of an internal combustion engine are presented. The sound was recorded using a voice recorder placed near the engine under varied operating conditions for the four-cylinder petrol engine. The distinctive characteristics of the periodograms where associated with the certain physical processes in the engine.

Influence of titanium sputtering on the inner surface of the casting mold on the chemical elements' allocating in the boundary layers of the mold is considered. It is established that the sputtering of titanium does not exclude the migration of mold's chemical elements through the titanium to the casting surface.

The article presents the current state and prospects of development of diagramm methods for the calculation of reinforced concrete construction. A brief review obtained by the authors results in this area, where great attention is paid to the improvement of curvilinear diagrams of concrete for different types of static loading of structures. Topical application of the considered methods for the analysis of structures in the zone of joint action of bending moments and shearing force that is not yet reflected in domestic and foreign regulations. In conclusion, the publication identifies ways for further research in the chosen area.

The aim of the research was to improve the physical model of deformation of a bent ferro-concrete element with cracks on the basis of modern achievements in the theory of damage accumulation and fracture mechanics. The presented model allows to determine the rigidity of the element in the operation stage taking into account the damage, the work of the stretched concrete over the macrocrack, the concentration of stresses at its apex, and the presence of a pre-destruction zone in it. The analysis of the results of calculating the rigidity of elements with different percentages of reinforcement by the proposed method and the diagram method using different diagrams of concrete deformation is performed. It has been established that the work of stretched concrete over the macrocrack has a greater effect on the rigidity at a load exceeding the cracking time by no more than 30%, which is especially pronounced in strongly reinforced elements (up to 48%).

The article considers the issues of increasing the efficiency of waste management through mathematical modeling and description of technological processes of the full life cycle of raw materials. The practical result is the proposed network model of the process of transformation of raw materials in the course of a complete life cycle, using the example of wood in the technological process for the production of MDF panels.

There investigated the direction of chip flow on the front surface by machining with non-cylindrical original instrumental surface end mills.

In this article, an analysis of the main thermal methods of waste utilization is carried out, a model laboratory for the thermal destruction of production and consumption wastes including medical was developed.

The authors proposed equations for the calculation of the stability and strength of thin-walled beams with swivel bearing ends can be generalized to the problem with boundary conditions corresponding to the elastic interaction with neighboring elements of the lattice pylons.

Known methods of testing supports create longitudinal and transverse static load applied to the support. In real conditions the majority of the damage of the supports is connected with the influence on them of dynamic loads, which can exceed the static. The proposed method allows to conduct experimental studies of cascade processes of destruction of anchor site due to a wire breakage, when the potential energy of the tension wires is converted into a dynamic influence on the design of supports.

The article presents the results of testing a prototype vibro-grinding laboratory machine for making samples for metallographic examination. The effectiveness of the method and its suitability for the preparation of thin sections during laboratory studies in the discipline "Material Science" have been established.

The main provisions of the technique allowing to create a diagnostic complex of the technical state of the machine system, which is informative at the same time of several diagnostic complexes - geometrical accuracy, strain gauge, technological accuracy, the influence of technological heredity - are revealed.

This paper discusses the method of perfecting energy saving actions in boiler plants based on the analysis and optimization of their performance indicators. A boiler-house plant with low-potential secondary energy resource and external combination units is taken as a study object.

The paper considers the preparation of chelate microfertilizers based on copper salts and monoethanolamine. Monoethanolamine increases the solubility of copper compounds in water, which makes it possible to use a wasteless technology for the production of a micronutrient solution with a high mass fraction of a microelement. The resulting microfertilizer solutions have a positive effect on the growth and development of agricultural plants.

The problem of ensuring the correct conduct of the experiment with preservation of the required temperature is considered. The construction of the device is proposed that will allow satisfying the conditions for carrying out tensile tests with an increased or lowered sample temperature.

The paper investigates the aspects of using accelerated weather testing methods for polymeric materials. The need has been identified for consistency of polymer ageing and degradation mechanisms in full-scale and laboratory conditions, as well as for equipment that most closely simulates the actual operating conditions.

The paper investigates the thermal properties of polymer blends of polypropylene and low-density polyethylene.

The paper investigates usage of polymeric fuel tanks in the automotive industry.

The aim of the work is to highlight the practical application of the Agile concept in the life cycle management of investment projects in the field of engineering. The comparative advantages and disadvantages of the concept of flexible design are revealed. The themes of engineering projects in which the application of the Agile concept can be applied are identified.

The article highlights the main factors, defining the surface quality of ring gear during hot bulk precision stamping. It offers enhanced techniques of surface quality of stamped ring gear.

The aim of this work was to study the joint work of structural systems "steel bearing overhead power transmission lines 10 kV – prefabricated concrete Foundation of a new type [1] – ground". For this purpose the technique of computer simulation in a PC "ANSYS" of the system. The method takes into account the spatial work of designs and physical nonlinearity of materials from which they are made. In addition, for steel was used in the theory of Mises, for concrete – Williams-Warnake, for ground – Drucker-Prager. In addition, all the necessary geometric, strength and physical characteristics of the model were obtained on the basis of the existing construction Standards for the design. The analysis of stress shows that its strength, stiffness and stability is provided, and there are reserves: for the metal supports – up to 15% to the base – 30%, ground – 1%.Therefore, further studies should consider the optimization problem for the choice of an effective constructive solution of the support and Foundation (with clarification on how to calculate them), that may be grounds to apply for a patent or utility model. Based on the obtained results it is recommended that a new type of collapsible foundations to apply in the real world.

The article describes the innovative method of strengthening the working organs of soil-cultivating machinery, which are operated in an abrasive medium.It is performed by carbo-vibro-arc surfacing of working bodies using composite metal ceramic pastes with simultaneous thermodiffusion hardening of basic metal of the working body. Based on the results of the studies, the optimum composition and concentration of pasta components were determined, which ensure an increase in wear resistance of hardened working organs by an average of 1.8 ... 2.0 times.

On the basis of the numerical solution of polydisperse gas suspension dynamics system of equations, the process of powder spraying on a plane surface in an electric field is described. The model includes motion equations of the carrier medium and disperse phase fractions under aerodynamic friction and Coulomb forces action taking into account interfacial exchange of pulse and energy. The system solves by an explicit predictor-corrector method with splitting on the spatial directions and the non-linear correction scheme. The numerical model is applied to gas suspension speed and density fields receiving in interelectrode space and on target electrode surface. The system of equations was written in the generalized curvilinear coordinates: the physical region of a current in variables (x, y) was written in a canonical computational region in variables (ξ,η) and was solved by an explicit second-order Mac-Cormack method. The Poisson equation for the electric field potential was written in the generalized coordinates and was solved by finite difference method with the use of the iterative Seidel scheme on a gas-dynamic computational mesh.

The purpose of the work is description of the processes occurring in the liquefied natural gas heater-gasifier having small duration of transition process upon transition to the stationary mode at the flow volume change on the basis of mathematical modeling of the thermo- and hydrodynamics of multiphase mist flows with swirling of the stream.

Studies of static-dynamic disorders, with the use of new, progressive technologies in the post-traumatic period becoming increasingly practical. We conducted studies of the support, dynamic function of the lower limbs, balance in a vertical rack in 20 healthy individuals (comparison group) in order to determine the normal values of the biomechanical research indices. Of all studied women 12, men 8. All subjects were of working age (25-55 years). The median age was 40 years. Of particular interest are data from biomechanical studies of the support, dynamic function of the lower extremities, sensory balance, conducted in 18 patients with fractures of the joint region of the lower leg bones in the dynamics at terms 9-12 and 18-24 months after the operation. In the study of the balance, there were found disturbances in the influence of the somatosensory, visual and vestibular systems on maintaining the balance of the body. Each balance study included a series of open and closed eyelids in a vertical patient stand with lower limbs straight in the knee joints on hard and soft (foamy) surfaces. The application of the hardware-software evaluation of the support-dynamic function of the lower extremities by the type of stabilometry at the rehabilitation stages will allow to identify and carry out the prevention of serious post-traumatic complications at an early stage of the disease.

The way of achievement of the given parameters of quality of assembling of one-piece products, such as accuracy of geometrical sizes of a product and durability of non-detachable joints at stages of technological preparation and management of technological process with application of an artificial intellect is studied.

The article considers the factors that influence the electrochemical dimensional processing, which have synergistic connections. It is revealed that the size of the interelectrode gap is of great importance for ensuring the quality of processing, and methods for adjusting the gap during processing are proposed.

Advanced Driver Assistance Systems (ADAS) require an environmental recognition function to inform the driver and for making management decisions. To solve the problems of pattern recognition, it is necessary to use one of the image classification methods. To date, there are quite a few similar algorithms that differ in the quality and speed of recognition. This paper presents a comparative analysis of classification algorithms in the problems of road signs recognition based on the GTSRB dataset. The results of the work showed that the most promising methods of classification in the problems of image recognition are the methods of reference vectors and k – nearest neighbors.

The rheological characteristics of composite water-coal fuel, as well as the possibility of reducing the viscosity of composite water-coal fuel due to the use of nanomaterials, are studied. Improved rheological properties of composite fuel containing small additions of these substances: carbon nanomaterial at a concentration of 0.005 wt. % or 0.3 wt. % of the dehydrated carbonate slurry. Possible mechanisms for changing the viscosity properties of fuel are considered.

In this paper the laser welding technology features of wear-resistant powders on the hob's cutting edge with laser radiation (LR) focus positioning control are described. It is shown that the quality of the welding process depends on the processing regimes, the energy characteristics of the laser technological complex (LTC), the positioning accuracy of the LR focus and its perpendicularity relative to the plane of a router bit. In this paper we deal with the questions of stabilization of LTC parameters and LR positioning as well.

Laser welding features of compacted graphite iron are described in this paper. An approach that allows to reduce residual stresses and the probability of occurrence of "hot" cracks in the weld seam as well as to increase the absorption coefficient of laser radiation due to the use of metal powder Ni-Cr-B-Si-Fe, BoroTec-Eutalloy® 10009-chromium-nickel alloy are proposed. Recommendations are given when conducting a welding with compacted graphite iron.

Modern machine building industry can't be without the use of special coatings, which allow increasing the physical and mechanical properties of the product. Nickel coatings are widely used, due to wear resistance and corrosion resistance. Black nickel coatings began to be used in solar power engineering, for efficient conversion of solar energy into thermal energy. Also nickel coatings are used in the manufacture of medical instruments. To improve the physical and mechanical properties of nickel coatings, the task was to study the possibility of creating a bi-nickel coating.

The aim of work is research the microstructure of the products obtained in the ProJet 160 by ColorJet Printing technology. An IR spectrometer and a scanning electron microscope were used to analyze the structure. Analysis of IR spectra showed that when the gluing component was added, redistribution of the intensities of the absorption bands in the 3600-3500 cm^-1 and 1130-1080 cm^-1 region and the appearance of new lanes in the 3403 cm^-1 and 1685 cm^-1 region were observed. This indicates the phase transformation of the gypsum component under the action of water.

The work is devoted to manufacturing possibility of individual telescopic cervical implants by the casting method for burned-out models obtained on a DLP printer. The ProJet 1200 using possibility for the burned model production of a telescopic cervical implant was studied. The results of the model material influence on the molding mass are obtained. Experimental samples of cervical implants on the Inducast installation are cast. The ineffectiveness of this technology in the manufacture of reticular collapsible telescopic implants is established. The possibility of its application for thick-walled structures is established.

The use of additive technologies for the manufacture of medical devices and equipment is becoming more widespread. However, manufactured products require additional processing to improve performance. Therefore, the aim was to investigate the processes of borating and electrophysical processing of the working surfaces of articles obtained by selective laser melting.

The production of individual implants, intended for a specific clinical case, is increasingly used in medicine. The next stage in the development of implants is the creation of a non-monolithic mesh structure of the implant body. This allows to reduce its weight without loss of mechanical characteristics, and the main thing is to fill the free intergrid space with bioresorbable material, which will be replaced by cells in the future. The creation of a reticular three-dimensional structure of the implant is a complex technical task and requires the search for new ways of production. In this paper, a comparative study of the possibilities of selective laser melting and casting on burned-out models of telescopic implants obtained by 3D printing methods is carried out. Various production methods produced prototypes of telescopic cervical implants and carried out their technical and economic analysis. It is established that the best quality of products is observed by Selective Laser Melting technology.

The work is devoted to 3D scanning capabilities investigation for controlling the geometric dimensions of cervical spinal implants. Models of cervical implants were modeled in the CAD program "SolidWorks" and were made on rapid prototyping installations RS 6000 and ProJet 1200. Polymer models of implants were used for casting on consumable patterns at the casting unit Inducast. Scanning of polymer models and metal castings was performed using the 3D scanning system Activity 850. The resulting parametric 3D model had a lot of defects and inaccuracies. However, the use of non-contact optical scanning methods greatly simplifies the measurement of the control dimensions of complex profile mesh implants.

The work is devoted to the investigation of the processes of obtaining fine powders from steel 17-4PH, for the purpose of their further application in 3D MicroPrint technology. This technology is a type of selective high-resolution laser melting of ∼ 30 μm. In 3D MicroPrint technology, a powder of less than 5 microns is used, which in turn necessitates the development of new cheap methods for obtaining spherical fine powders. The process of plasma-electrolyte powder production of 17-4PH steel was studied, the discharge burning conditions and conditions for the arrangement of the electrode system for obtaining powders with dimensions less than 5 μm were selected. The proposed method is simple and does not require expensive equipment.

Electrochemical stamping produces an oxide film on the titanium surface, which slows down the stamping process. In this paper, the task was set to develop technological methods that accelerate the process of stamping titanium alloys. Studies have shown that markings obtained from an electrolytes given in the work and according to the regime described in the work are stable, clear, contrasting, different in color from the base metal. The resulting marks have withstood repeated sterilization by boiling in water and a moisture resistance test.

The purpose of this study is to determine the possibility of using polystyrene waste in Selective Laser Sintering (SLS) technology. The powder was subjected to mechanical and chemical influences and was studied in optical and IR microscopes. Test samples were obtained on the sPro 60HD unit (3D Systems, USA).

Preparation of production and development of new science-intensive products is a complex and time-consuming process, including the creation of product models for carrying out a series of experimental studies to refine computational models, and then manufacturing the necessary technological equipment. The use of digital production technologies can reduce the laboriousness of this process. This work researches on decrease in time of development of details of the gas-turbine engine with use of digital manufacture concepts and additive technologies are given.

The article contains information on the properties and possibilities of ultrasonic oscillations of high intensity, the features of the application of ultrasonic vibrations for the intensification of processes occurring in liquid, solid, gaseous media, polymeric materials, as applied to solving problems in the chemical, biotechnological, food industries and related industries. The methods of using ultrasound for cleaning parts on grinding and polishing operations, which are primarily intended for use in the manufacture of medical instruments, are described in more details.

This article describes methods of manufacturing surgical guides - their creation in rapid prototyping installations and milling machine grinding. Implantation was carried out using the obtained guides and derating level of installed implants was defined. The work compares existing technologies of surgical guides production and defines a clear advantage of using laser stereolithography technology for product manufacture in quantities greater than one.

The production of individual implants, modeled specifically for a specific clinical case, is increasingly used every year in traumatology and oncology. Traditionally, individual implants are made on five coordinate milling CNC machines. However, the need to create individual implants with a mesh structure requires the search for new ways of production. In this paper, the feasibility of casting telescopic implants, obtained by laser stereolithography, has been studied. The process of burning photopolymer from a flask was studied. Inducast installation cast prototypes of cervical implants. The ineffectiveness of this technology in the manufacture of mesh collapsible telescopic implants has been established, but it can be used for structures with a thickness of 1 mm.