The article considers the model of the technological line operation for parts manufacturing, made in the simulation system Arena Rockwell. The relevance of the study is to reveal the "bottlenecks" and to answer a "what if" question when considering different models. Optimization parameters are the maximum...

We studied an impact of the technological processes, used for forming С/Сu composite coated surface of medical implants, on the mechanical characteristics and biocompatibility of resulting coatings. These implants, designed for temporary functioning, were made from X12CrNiTi18-9 stainless steel by ion-beam...

The paper is devoted to various approaches used to optimize the working area of relative handling modules being part of a robotic cell for processing of irregular items. The robotic cell consists of a planar 3-RRR mechanism turning the lower platform around axis z and ensuring its forward movement on...

For modern high-efficiency digital production, the main requirement is its ability at any time to break evenly the manufacture of products and in a short time with minimal costs to start producing any number of new products. The fulfillment of this task largely depends on the efficiency of the technological...

One of the most topical problems of the electric power industry in the transport sector is the problem of improving the energy efficiency of vehicles and the transport system as a whole. Electric traction is a significant share in the overall structure of consumption of urban electric transport, and...

One of special GWL methods included into mandatory complexes of studies in open holes is the formation testing with logging cable also known as hydrodynamic well survey. Over 60 years, Russian company VNIIGIS have been developing the equipment, method and technology for formation testing with logging...

The article analyzes the economic performance of wells with hydraulic fracturing. The effectiveness of using hydraulic fracturing technology in the development of the oil reserve area with the low-permeability zone is defined in terms of its economic feasibility. To do this we studied the dependence...

Researching results and monitoring urban highways with an upper layer of stone mastic asphalts on blastfurnace slag aggregates with a cuboid-shaped grain are presented in the paper. Crushed stone with such shape of grains is obtained after 3 stages of crushing on a modern domestic and imported crushing...

The results of a quantitative risk assessment for engineering stone mastic asphalts on blast-furnace slag aggregates are presented in this paper. The MathCad software module has been used. It has been shown that managing the properties of asphalt concretes significantly reduces the risk of defects appearing...

Investigation results of modeling the influence of different parameters on the chip element length in rotary milling are presented. To highlight the significantly influencing factors, we used Plackett-Berman’s plans. Evaluation of the adequacy of the regression equation was carried out according to the...

The paper presents a simulating system for choosing an optimal technical and organizational variant of automatized tunneling technology in coalmining production. The system is based on methodology that uses a system-functional approach for tunneling operations analysis and a simulating and evolutionary...

The results of the theoretical investigations and simultaneous strain gauge measurements of axial forces in the flexspline and wave generator of heavy-duty harmonic gear drives, mobile hot-metal mixer and ore-pulverizing mill drives are presented. Comparative analysis of measurements and the theoretically...

This paper shows the results of the current distribution analysis in the DC traction network with multi power supply from different sources, the methods of the current distribution determination at the substation spacing for two-way power circuits of the contact network sections are presented

The paper presents results of theoretical research of effect of transverse compression in a shear span zone on webcrushing strength of I-shaped reinforced concrete beams. The hypothesis of an increase of web shear strength in case of clamping by prestressed external strengthening transversal reinforcement...

In the article the developed mathematical models of heat exchange in the multilayer structures of spherical shape are presented. The mathematical description of the polymerization temperature process of composite materials is made at three production stages. Heat exchange is considered when the perfect...

Russia's rocket and space industry should become an economically sustainable, developing along an innovative path, competitive, diversified industry capable of solving strategic tasks of improving and developing rocket and space assets. That should be done in the interests of national security, socio-economic...

The article reveals the essence of the concept of adaptation, in particular social adaptation and its context in the changing socio-economic conditions of society. The authors analyzed interdisciplinary works on the study of the phenomenon of social adaptation. This analysis showed the general integration...

This article considers a conversion device that ensures matching of the characteristics of the superconducting inductive (SPIN) energy sources and receivers of electric energy of the traditional performance in a power unit of autonomous perspective of the locomotive. Diesel-electric traction is a wellknown...

The mathematical problem of synchronization of material flows in small-scale production is a statement of objectives, criteria and optimization demonstration. It is proposed to use the best practices of Lean and QRM approach as applied to small-scale production, taking into account the specifics. There...

The given article demonstrates a tooth mesh modification of a surface reducing gear of a rod driven screw pump used for oil production. The Novikov gearing for reducing gear transmission has a set of advantages over the involute gearing being applied at present and is proposed to be used instead. The...

The designing and creating rail vehicles with increased power and performance, in the design decisions of which the vibroactive working parts are widely used, are inevitably accompanied by an increase in vibroacoustic characteristics. It leads to the deterioration of the working conditions for locomotive...

Cleaning and disinfection of recirculated air of livestock buildings are a critical factor in the formation of an optimal climate for agribusiness. The modern system of cleaning of the ventilation air does not allow one to analyze the composition of the air environment in the entire spectrum of harmful...

Development of effective bottom hole cleaning equipment from junk is an effective way of enhancing productivity of drilling operations. The article describes the construction of the near-bit for enhancing bottom cleaning of vertical, slanting and horizontal wells from junk during drilling by a roller...

The paper covers the area of block-structured adaptive grid generation for finite difference, finite element and finite volume methods. It deals with a problem of development of information technologies and algorithms for generating such grids in complex geometries. Its key idea is to bring together...

3D rigid-body model of a bucket of power shovel EK-18 was built using modern CAD (Computer Aided Design) software. A tetrahedral grid with 10-node second-order elements was chosen, and the given model was imported to APM WinMachine - model preparation preprocessor for finite element analysis. A finite...