Name
Rembalovich Geоrgiy Kоnstantinоvich
Scholastic degree
•
Academic rank
associated professor
Honorary rank
—
Organization, job position
Ryazan State Agrotechnological University named after P.A. Kostychev
Web site url
—
Articles count: 26
In agriculture the issue of enhancing the
efficiency of operation of internal combustion
engines (ICE), reducing the costs of
maintenance (TO) and repairing (TP) fuel
supply apparatus (TA) using the improvement
of methods and means of diagnosis is a topical
in connection with the aging rolling stock
farming and lack of investment. Analysis of the
known TA diesel engine vehicles systems
showed that the most widespread system is the
divided type with multiplunger high pressure
fuel pump (fuel pump), while the methods of its
diagnosing are laborious, they require partial
disassembly and have insufficient accuracy.
The mathematical models that characterize the
work of a high-pressure fuel pump (fuel pump)
use a large number of parameters that
significantly affect the quality of dynamics of
the change of pressure values of diesel fuel.
However, in the materials of previously
published articles there were no issues
considered assessing the extent of the
quantitative impact, performance and features
change in the sensitivity settings of the
mathematical models on the simulation results,
there are no recommendations on the degree of
sensitivity and importance of each of the
parameters. For a more accurate diagnosis of
the fuel supply apparatus of a diesel engine it is
advisable to use several methods of diagnosing.
The article substantiates development of a
mathematical model of a high-pressure fuel
pump based on the analysis of modern methods
of diagnosing of fuel equipment for autotractor
diesel engines
The development of agricultural production inevitably
entails an increasing volume of traffic and a turnover of
goods. Therefore, the issues of increasing transport
efficiency, reducing the price of transportations and
improving productivity acquire great importance.
In most cases, supersize dump trucks used for the
transport of agricultural production have much more than 6 tons axle load. Thus, these cars need to have
roads with improved surface to each field, which
undoubtedly is a significant drawback. Because of the
extra movements of harvester dump trucks on the
turning strip at the end of the field, it increases expenses
of damage and loss of crops and the arrival of heavy
machinery in the field leading to soil compaction, that
in the end affects the future crop. Transportation of
agricultural commodities is most effective when the car
arrives directly to the harvester machinery. Such
vehicles must have sufficient abilities and capacity of
the body comparable with the volume of a combine
hopper and has no significant impact on soil sealing.
With this method, harvesters do not make extra
movements and are not idle. Basic requirements for
vehicles used in the harvesting potatoes, are in a more
productive use due to increasing the capacity and
reducing downtime when loading or unloading and
minimizing the level of damage to other tubers. For the
transportation of agricultural products there is a
different transport technology, which either do not fully
meets the requirements of transportation of highly
fragile product, or has a significant cost. Therefore, we
require a specially equipped vehicle bodies, with a
competitive ability in the range acceptable to the
Russian Federation. As one of the innovative
developments, this article proposes a tipper body of the
vehicle for transportation of highly fragile agricultural
products. The proposed design solution for the tipper
ensures a uniform unloading of transported products
from the vehicle body and prevents arching issues
The role of transport in agricultural production
is significant. It is the connecting link in the
technological chain of the agro-industrial
complex (of the APC). On-farm transport in the
APC together with cars and tractor transport are
widely used. The rationality of the use of
wheeled tractors for farm transport substantiates
the possibility of their movement on asphalt and
on dirt roads. The specific gravity of the tractor
transport in the domestic agriculture is 22-27%
of the total volume of transport and 50-60% of
the volume of farm traffic. A high level of use of tractor transport has been observed in the
countries of Western Europe and the USA. In
the farms of leading countries of Western
Europe (Germany, Italy, France, etc.) about 70-
90% on-farm transport of agricultural goods is
done by tractor transport. Tractor transport in a
live environment is running on roads with
varying terrain, a wavy profile cover, on soils
with different hardness and humidity. When
driving vehicles at high speeds, the trailer is
wobbling from side to side, constantly
accompanying tractor transport during its
operation. As a result, it is bad for propulsion,
transmission, and it deteriorates the dynamic
performance properties of equipment, working
conditions of the operator. To reduce the
amplitude of oscillations of the trailer, the
operator is forced to work strenuously with the
steering wheel or to slow down the speed,
which in turn affects operator fatigue, as well as
the performance and maneuverability of the
vehicle. Thus, advanced technologies in
electronics, sensor technology and software will
determine the nature of agro-technical
innovations and will lead to increased
automation of business processes in crop
production with the aim to organize the work
more effectively, efficiently, accurately,
environmentally friendly and economically
feasible. When working with intelligent
technologies, understanding the development of
high-tech, precision engineering requires a
revision to the personnel policy and education
in agriculture, which should be based on the
relevant organization of farms and their proper
new type engineering solutions
This article deals with the present level of harvesting and transport operations in the production of potatoes and methods of improving the operational and technological parameters of machines with which they are carried out by introducing into their design of innovative devices
In the article, the questions of increasing productivity exploitation of vehicles and mobile agricultural technology by developing universal vehicles for inner transportations of agricultural products have been reviewed
High-strength steels are used to increase the reliability of potato harvesters. With the advent of new materials and new technologies in agricultural engineering, it is possible to significantly reduce the mass of working bodies, to reduce energy costs. The elastic system of the composite elevator bar, unbalanced by the impact of the component of the potato heap, is in oscillatory motion. An increase in the height of the fall, and hence the speed of collision with the bar of the component of the potato heap, determines the amount of deflection of the composite bar. During vibrations, in addition to static deformations, dynamic ones are added, depending on the magnitude of the impact force. It was established that a bar made of composite material should have the following parameters: elastic modulus E = 55000 MPa; the diameter of the composite bar d = 0,012 m
The mathematical model presented in this article is designed to assess the probability of occurrence probability of technological failure potato harvester according to the specific conditions and usage
Condition monitoring is a necessary element of the
transport and special machinery in agriculture. The
task of the control operations other than the
determination of the technical state of the object is to
determine the required amount of work, as well as
rational amount of collateral the repair of which could
be combined with the next maintenance. Based on the
results of processing of the information, we may
generate requests for service. In the conditions of
uncertainty of receipt of requests for servicing of
individual machines, estimated volumes and timing,
we have am appropriate development of applied
technique of justification of the number of diagnostic
posts for interactive control of a technical condition
of vehicles and special machinery in agriculture. The
presented methodology is based on probabilistic
methods, and allows the quick optimization of the
number of existing posts interactive diagnostics in the
enterprise, if necessary, translating the existing posts
in "standby" mode, or Vice versa, returning from a
reserve in "work" mode. The production and
technical base of the enterprise service based on the specific assumptions are considered as a system of
mass service (SMO), and the function of such a SMO
– as the process of mass service. The process of
queuing as applied to interactive diagnosis are
"Markov" processes "death and reproduction" with a
finite or countable number of States and continuous
time. To describe the states of the system we use the
system of the Kolmogorov equations for steady state
of "Markov" process. On their basis, we have
determined average queue length, time of stay orders
in the queue, number of busy channels and the
bandwidth of the CFR. Using the intensity of the
requests and the service time of a single application
for specific equipment, the article establishes the
efficiency of online diagnosis posts. The result of the
proposed applied methodology enables timely
decision-making about the need for reconstruction or
technical re-equipment of the company
Potato is cultivated in 130 countries on an area of over
18 million hectares; it annually gives more than 300
million tons of tubers. The share of the Russian
Federation accounts is about 11% ... 14% of total
production. The resulting potatoes consumed in food, animal feed, technical purposes, seed fund. According
to the Ministry of agriculture of Russia, the largest
number of potatoes in our country (89 %) is produced in
peasant farms and personal farms of citizens, the area of
cultivation of which make up about 2.7 million hectares.
At such farms for the harvest, they use mainly potatodiggers,
followed by selection of crops manually. The
use of diggers in small areas of planting is more costefficiently
in relation to the harvesting combine. In
addition, the parameters requested for ATT to damage
potatoes when harvesting with the diggers (3%) are
higher than during harvesting by combine harvester
(5%). As practice shows, for the use of cleaning units,
even under optimal harvesting conditions in the hopper
of the combine, there are soil and vegetable impurities.
There are many different devices intended to localize
the problem. Based on the foregoing, we can conclude
that it is necessary to pay considerable attention to the
quality of work of excavating working bodies, because
it affects the productivity of the functioning of the
whole machine. Currently, there are widespread potato
aggregates with the receiving part, equipped with side
disks, spaced along the edges of the plowshares. The
disks cut off the raised layer of soil from between the
rows. This entails improving the performance of the
potato harvester. The most efficient and economical
from the point of view of energy consumption, is the
work of passive disks with hooks. The quality of potato
harvesters depends on the design and performance of
excavating bodies. The proposed design solution for an
excavating body increases the productivity of harvesting
machines
This article deals with the rules of observance of agriculture technology requirements for the production of potatoes in particular. On the example of the combine PDA 1.2, we have considered the places having the greatest damaging effect on roots. One can also find a summary procedure for calculating the probability of defective products