The article presents an attempt of generalization of problems of the theory of mathematical description of synchronous machines with an arbitrary number of windings of three-phase and the arbitrary location of these windings in the space of the machine. We have also considered the peculiarities of choice of rational system of relative units in the mathematical description of such a machine
Different stages of designing architecture of detection systems and opposition to network anomalies are analyzed in this article. It is pointed that common classification can be to determine state of network: “normal”, “critical”, “faulted”. Bases for building architecture of detection and removing anomalies are offered
The article describes problems of economic
growth of the Russian Federation, development
of high-tech knowledge-intensive
manufacturing industries on the basis of a
fundamentally new technological order, creation
and development of import-substituting
production of engineering resources that relate
to dual-use technology and are in the most
demand by strategic organizations of machinetool,
machine-building and military-industrial
complexes (aircraft engineering, rocket and
space engineering, shipbuilding and power
engineering). We proposed some measures to
improve the accuracy in the manufacture of
complex and large-sized parts with weights up
to 100 tons. Precision machining of the
workpiece surface is directly dependent on the
tooling, quality and quantity of the cutting tool
(CT), as during the processing the CT wears and
must be replaced. We have described the
modernization of multi-machine complex and
ways of increasing the accuracy, the change in
the kinematics tool supply to increase the
number of tools used in the processing. We
made calculations of the new chain drive of the
tool supply. The proposed modernization of the
tools will increase the instrument amount that
allows increasing the accuracy of manufacturing
products. We have also made calculations of the
economic effects of the tool supply
modernization
In the article we consider questions of use of gearless electric drives with the linear asynchronous engines. Constructions of engines, their features and the principle of action in the electric drives of difficult oscillating motion executed on system the frequency converter – the asynchronous engine, deprived of shortcomings inherent in geared electric drives are described. Recommendations for a choice of an optimal variant of the drive of a working organ of the technological machine which is carried out on the basis of determination of value of the gained technical and economic effect are made. Methods of technical and economic project evaluation are offered: a method of a maximum of economic effect and a method of a minimum of the given expenses, their assessment is given. On the example of the grain-cleaning machine Petkus K531A and the roller-deck machine SGR-400 determination of technical and economic effect is made and an economic assessment of upgrade is given. The conclusion is drawn on validity of use of gearless electric drives from linear asynchronous engines in a technology equipment of agrarian and industrial complex due to lowering of energy capacity of technological processes because of an exception of gears and transformers of a type of movement; in some cases increase in an output of the final product due to increase in efficiency of technological process is watched; implementation of difficult oscillating motion allows to look at execution of a row of technological operations with development of new technological machines in a new way
The creation of better conditions for the cultivation
of plants is carried out by means of mechanical
impact on the soil working bodies of machines and
tools, that is, the so-called tillage. Its importance in
the conditions of intensive agriculture cannot be
overemphasized. The use of each scientifically based
crop rotation system of soil tillage is a necessary
condition for further growth of crop yields and
improve soil fertility. Tillage determines the
processes of reproduction, fertility regulation soil
modes, degradation processes and soil conservation.
Important and how self-administration in the system
of minimum tillage, and in addition to the deeper
treatment of soil under traditional agricultural
technologies is superficial and shallow tillage. Disc
harrows are the most applied machine for the
implementation of surface and shallow soil
treatment, performing a loosening of topsoil, leveling
the field surface, the destruction of soil crust,
crumbling lumps of soil, weeding, seeding and
fertilizer. This article describes the design features of
domestic and foreign disc harrows. We have given
their technical characteristics, and consider the
operational and technological parameters
The operating conditions of Petrovsky-Anastasievkaya irrigation system are considered. The system efficiency, the influence of operating and reclamation conditions on rice yield has bees analyzed. The priority types and amount of work on the improvement of operating conditions have been defined
The article analyzes the structures of domestic selfpropelled
potato harvesters, developed in 60-90th of the
last century. It considers their layout: based on selfpropelled
chassis NL-45, NL-65, NL-75, K-mounted
single-row and double-row 5B K-5A and KKSSH-2, on
the basis of MTZ-142 Four-KSKD-4; specialized
harvesters KSK-4-I, KSK-4A-1.We have disclosed the
advantages and disadvantages of each of the structures
shown the way forward. The analysis shows a general
trend of equipment self-propelled combines cartofeleuborochnyh
means to monitor the work of the
working bodies and councils-ment process, as well as
hydrostatic transmission based hydroficated bridges or
motor-wheels to run on high-styah soon. In the
arrangement of machines and their technological
schemes trend-Uwe crease width, equipment storage
hopper, enabling productivity-dit unloading products in
a number of oncoming traffic. We consider the design
perspective of modular self-propelled potato harvester
BCSC-4K, consisting of technological and power
module. Conducted owners-governmental tests combine
BCSC-4K display-whether it combines advantages over
KSK-4-I and KSK-4A-I performance and quality
indicators
The system of the main handling of the soil on an agrolandscape basis in the conditions of Kuban is analyzed and in relation to it the technical supply promoting competitive production of crop production is proved. Conservation and expanded production of humus of the Kuban chernozems is possible only in case of observance of recommendations and the balanced biologically adaptive system of agriculture providing improvement of water and physical and chemical properties of the arable land in various agrolandscapes due to observance of crop rotations, the technology space, the boardless, surface and "zero" treatments with creation of a favorable phytosanitary situation, use of a crop residue remaining balance, green manure, a fertilizer, manure and composts. The application was recommended in the system and technicians of new generation with automated control systems and work quality control, the sparing tradable systems, admissible weight with use of navigation aids and GPS is proved. We have suggested a system machine for soil cultivation in the Kuban region, it radically changes technologies, reduces the nomenclative list of the used equipment, facilitates servicing and operation of machines, improves rhythm, threading of production processes and complexity of the performed works. All this promotes decrease in capital investments and a work gain in productivity. The offered technical supply of system of the main handling of the soil for conditions of the Krasnodar region is proved taking into account agrolandscapes and evidence-based system of agriculture, auxiliary the main component - resource-saving system of the tillage machines which are qualitatively carrying out agrorequirements, reducing costs and promoting the increased product competitiveness of crop production
There have been suggested the courses of refinement
of the crop production technologies, has been studied
the efficiency of multipurpose assemblies (MPA) in
the process of mechanization of plant growing, which
provide the production of competitive agricultural
products, more perfect machinery construction and
tools, improving the quality of automated tasks
completion, the issues of machine stock renovation,
raising the effectiveness of their use, complexity of
tasks, integrity and continuity of the working process,
environmental safety of the production. The high level
of the complex task performance is based on
combining several technological operations,
completed during a single pass of MPA, drastically
refining the basic variants of the technologies. Using
the example of the multipurpose assembly Vector for
stubble tillage, introduction of mineral fertilizers,
planting of intercrops and packing of soil, we can
observe a significant advantage of the suggested
technology in comparison with using a mass produced
single-function machine. Combining several
technological operations in a single MPA pass
guarantees agritechnical, ecological, energetic and
economic efficiency. However, no attention is still
paid to the issue of the crop losses decrease (direct and
indirect) during harvesting, as well as to the problem
of the complexity of postharvest tasks simultaneously
with harvesting (tillage, planting of intercrops,
introducing fertilizers, etc). In the current article we
have provided the results of these studies. Respecting
the regulations of environmental safety of technical
units leads to the soil fertility raise and the pollution
decrease of agricultural products. All of them are
carried out in the technical support of the crop
production technologies
We have presented technical solutions of an energy
supplying complex of apiary based on a solar plant,
which ensure its functioning in the winter. Various
aspects of the influence of the snow cover on the
functioning of the complex are considered in the
article. The favorable effect of the snow cover includes
increasing the diffuse insolation, improving the
thermal insulation of the building for placement of
bees, which protects bee families from fluctuating
external temperature. The negative effect of the snow
cover includes adherence of snow to the receiving
surfaces of solar energy converters, which can lead to
decreasing the efficiency of using of photovoltaic
modules and solar collectors. Both active and passive
methods of combating snow sticking are suggested in
article. Passive methods include installation of solar
energy converters at an angle close to 90°, as well as
their placement on the windward side. The simulation
of the functioning of the complex based on a solar
plant was conducted for climatic conditions of the
Republic of Mari El (the time interval – from 14
October to 14 April, a photovoltaic module area – 1,3
m
2
with installation angles of 72˚ and 88˚). Because of
the simulation, we obtained graphs of the changing the
power of the photovoltaic module. Active methods
include air injection onto the receiving surfaces of
solar energy converters and using of heating elements