Name
Uspensky Ivan Alekseevich
Scholastic degree
•
Academic rank
professor
Honorary rank
—
Organization, job position
Ryazan State Agrotechnological University named after P.A. Kostychev
Web site url
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Articles count: 52
The mathematical model presented in this article allows you to choose rational values and ranges of design and technological parameters of body separation, as well as their further optimization
The article analyzes the results of the evaluation of the filter element of the filter of thin clearing of fuel on the basis of the change in pressure in the common rail fuel supply system depending on mileage
Potatoes in our country are one of the most cultivated cultures in agriculture. The most time-consuming process in the production of potatoes is harvesting. Currently for potato harvesting potato harvesters or diggers are used. Existing machines are not sufficiently well-behaved in adverse operating conditions such as the high and low humidity. Quality of work of the units and devices of potato harvesters depends on the digging working parts. In the process of potato harvesting up to 1000 tons of heaps from 1 hectare go through the units of the machine, which includes plant residues and dense soil out of row spacing. To eliminate or reduce the impact of this lack, on either side of the coulter we set cutting discs which prevent ingress of heaps out of row spacing. However, due to the imperfections of the design they are slipping during operation what causes accumulation and enhancing traction resistance. Based on these facts, the work on improving the digging working parts in the actual and future challenges for the country's agriculture
Modern condition agricultural transport (a significant part of it about 70%) is characterized by a strong deterioration of the rolling stock, the unsatisfactory state of the production base. More than 30% of vehicles operated outside the normative service life, the rest approaching to that state. In general, the provision of agrarian and industrial complex with agricultural vehicles is way below agrotechnical requirements. In the long term, farm machine engineering should focus on indicators of the technical level achieved by best samples of foreign agricultural machinery. Priority development is likely to receive the development of innovative technologies that provide a significant increase in productivity, efficiency and resource conservation in agriculture.
To address the shortcomings of transport services agrarian and industrial complex we should improve transport technology with the use of transport logistics, expand and update the existing vehicle fleet, but due to the low solvency of agricultural companies and high prices for of automotive engineering, the problem of providing agricultural vehicles becomes most acute. Thus, the creation of new science-based solutions in technology and engineering for transportation farm produce in terms of Russia's AIC is the actual scientific and technical task that contributes significantly to the development of the country, as well as enhances the enjoyment of breakeven, competitive manufacturing
An integral part of technological process for the cultivation of agricultural crop is the transportation issues. For their execution, we require significant energy and labor costs. The statistics show that the proportion of expenses for transportation of goods in agriculture reaches 25-40% of the total costs for ready-to-sale production, when the proportion of farm tractor transportations reaches 60% of the total. Thus, there are considerable losses of production, reaching in separate cases up to 50%. They are especially great in the harvesting and post-harvest cycles of crop production which is connected with crop damage during transportation. Large losses of fruit and vegetable products when transporting might be connected with their mechanical damage level during loading, unloading and transportation. This causes the urgency of the problem of preservation when transporting fruit and vegetables. One of the prior national issues is "... the development of directions to improve road transport maintenance with the aim of improving the quality of the transport process, which includes increasing commercial speed of freight flows by 2-3 times, increase productivity and profitability of road transport systems by 2-3 times, reducing the environmental load on nature by 20% ... " and others mentioned in the "Transport Strategy of Russia until 2020"
Based on the previous investigations we have underlined the need to increase fruit and vegetables preservation quality while transporting them from the producer to the consumer at the expense of improving the road transport operation for its intended purpose. We have made a conclusion about the need to develop strategies for maintenance and repair as for the actual technical state at the expense of developing the diagnosis system based on the development of a math model of changing the technical state of the diagnosis object, developing a method of rational set of objects to be diagnosed and determining the technical state optimal control frequency. We have confirmed that the above mentioned is possible when considering the system of technical operation of road transport as an organization-production system and applying the engineering-cybernetic approach to improve this system. We have considered the basic requirements for the efficiency indexes when investigating and improving the operation system that will allow achieving the aim we have had and can be described mathematically. We have made a conclusion about the urgency of the issue we studied and the possibility to develop the efficient operation system of road transport based on the provided criteria
An integral part of technological process for the cultivation of agricultural crop is the transportation. It requires significant energy and labor costs. The statistics show that the proportion of expenses for transportation of goods in agriculture reaches 25-40% of the total costs for the production made, when the proportion of farm tractor transportations reaches 60% of the total. Thus there are considerable losses of production, reaching in separate cases up to 50%. They are especially high in the harvesting and post-harvest cycles of crop production which is connected with crop damage during transportation. The quality of fruits and vegetables during the harvest depends on the technology of its collection and transportation. Due to the rapid deterioration of most agricultural products, agricultural producers have the task in careful transportation of the fruit. A huge role in the preservation of the product is its harvesting and packing into containers. In Russia we use wooden boxes, and foreign farmers use containers, whereby they have higher productivity and preservation of fruits. The type of vehicle, the time of a day and the air temperature also have a large impact on crop damage. In Soviet times, various technologies have been developed for harvesting and transportation of the harvest to consumers using various types of forklifts, harvesters and vehicles. In our time, it requires the development of new technologies for harvesting and transportation of agricultural products to achieve a higher level of automation and high profitability of agricultural production
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
One can see some density irregularity within the roll
in the baler with a chamber of constant volume. We
have found out that the maximum density of hay roll
width (the baler width) is observed in the middle part.
This is due to the shape of the hay roll entering the
baler. To even the hay rolls they have mounted some
rotating disks having some inclined spring pins above
the baler. To improve the roller distribution the disks
above the baler have been pushed forward forming a
tapering gap. The evening discs rotating above the
moving roll will cause some relative motion of hay
particles. The interaction of the evening disks with
the hay roll in the vertical plane will be determined
by the elasticity of the hay roll and the weight of the
frame with the disks. We have studied the trajectories
of hay particles motion with the help of MathCad
program. We have had the following initial
parameters: the degree of compaction (decrease of the
roll height when evening), the friction coefficient, the
angle rate of the evening disks, the number of pins and the speed of the hay roll. As a result we have got
the trajectories of the hay particles motion when the
evening disks functioning. The analysis of the
trajectories has allowed to establish some basic
parameters of the evening device such as the distance
of 0.15…0.2 m between the pins; the degree of
compression while evening 20...25 %, the angle rate
of the evening discs 23...30 rad / s and the diameter
of the evening disc 0.74 m. The application of the
evening device in the form of the disks with pins
provides a uniform distribution of hay particles
edgewise of the baler ensuring preliminary hay roll
seal press before passing to the baler pressure
chamber that contributes to getting the rolls with
larger mass and a uniform distribution of hay density
inside the roll
Material and technical resources form a large part of the
costs in agricultural production and determine the level
of intensity of agriculture, productivity and
competitiveness of the industry. The most important
role in agricultural production is played by transport
operation, from productivity and quality of which
directly depends the volume and the grade of final
products. More preferable is tractor transport,
particularly for on-farm transport, taking into account
the impact of navigation systems on the ground.
Continuous growth in the saturation of tractors carried
out around the world, improves the performance of
tractor transport aggregate by increasing their capacity and speed, either on the road or in the field. However, if
you increase the saturation of tractors, it encounters
problems related to the deterioration of the
controllability of the tractor and transport unit. The
reduced controllability leads to an increase of damage to
transported agricultural products owing to increased
oscillatory processes in the system of "road – trailer –
tractor – operator" when driving on-farm trails,
deteriorating the smoothness and braking properties.
Especially sharp these questions relate to transportation
of easy-to-damage agricultural products at farm
transportation. The feature of data traffic lies in the
sharp drop in grade products (products receive
numerous mechanical damages, deteriorating its quality,
and lose marketability and accordingly reduced its cost).
Influence on fruit and vegetable products of unfavorable
factors can lead not only to a dramatic loss of quality at
the time of transportation, but also reduce the resistance
during further storage. To solve the problems emerging
when increasing the saturation of tractors, we have
proposed devices, allowing reducing negative impact on
the production of elevated oscillatory processes, to
increase the permeability and straightness of movement
of tractor-transport unit