scholarly journals Methods of calculation of the power for dough kneading with the use of blade-free working part

2020 ◽  
Vol 100 (4) ◽  
pp. 75-85
Author(s):  
Igor Stadnik ◽  
Oksana Pylypets ◽  
Mykhailo Pylypets ◽  
Volodymyr Poddubny ◽  
Olena Kolomiiets
Keyword(s):  
Technological Process ◽  
Rotation Frequency ◽  
Design Parameters ◽  
Technical Solution ◽  
Friction Forces ◽  
Cylindrical Working ◽  
Increase Productivity ◽  
Main Components ◽  
Baking Industry

Baking industry plays one of the most important roles in the production of vital food products. The quality of the bakery products can be improved through the improvement of quality in technological process of dough kneading. A technical solution for providing greater contact with the environment, reducing the duration of the process, and, accordingly, increase productivity due to the developed design of a new machine with a cylindrical working body was proposed. The ways of regulating the course of the technological process in the working chamber of a new kneading machine are considered. They are based on the change of parameters: duration of kneading, temperature, humidity, rotation frequency of the working body. A method of calculating the required power based on the process of kneading the dough is proposed. It allowed obtaining a theoretical calculation of power consumption at unknown values of the friction forces action on the kneading drum, but the known frequency of its rotation with the corresponding design parameters and factors of influence. In addition, it makes possibility to determine the effort main components that affect to the power increase of the working body drive.

Research on the Optimal Design Method of the Main Components for the Wheelchair Pickup

2013 ◽  
Vol 791-793 ◽  
pp. 799-802
Author(s):  
Ya Ping Wang ◽  
H.R. Shi ◽  
L. Gao ◽  
Z. Wang ◽  
X.Y. Jia ◽  
...  
Keyword(s):  
Parametric Design ◽  
Design Method ◽  
Basic Function ◽  
Design Parameters ◽  
Algorithm Optimization ◽  
Optimization Analysis ◽  
Research Designs ◽  
Optimal Design Method ◽  
Main Components

With the increasing of the aging of population all over the world, and With the inconvenience coming from diseases and damage, there will be more and more people using the wheelchair as a tool for transport. When it cant be short of the wheelchair in the daily life, the addition of the function will bring the elevation of the quality of life for the unfortunate. Staring with this purpose, the research designs a pickup with planetary bevel gear for the wheelchair. After determining the basic function of the wheelchair aids, the study determines the design parameters by using the knowledge of parametric design and completes the model for the system with Pro/E, on the other hand, it completes key components optimization analysis which is based on genetic algorithm optimization.

scholarly journals Multi-section coupling device for aggregation of modern seeding machines

2021 ◽  
Vol 1 (25) ◽  
pp. 140-149
Author(s):  
G.G. Parkhomenko ◽  
◽  
S.I. Kambulov ◽  
I.V. Bozhko ◽  
◽  
...  
Keyword(s):  
Technological Process ◽  
Rational Design ◽  
Climatic Conditions ◽  
Design Parameters ◽  
Coupling Device ◽  
Rational Design Parameters ◽  
High Level ◽  
Relationship Of ◽  
The Relationship

Choosing rational design parameters of the coupling device for multi-section aggregation of seeders, it is possible to ensure full loading of the power unit while maintaining quality indicators of the technological process at a sufficiently high level. Foreign aggregates are not suitable for use in the Russian Federation due to the different soil and climatic conditions. Purpose of the study: to develop an effective device for multi-section aggregation suitable for domestic modern seeding machines. Subject of the research: the relationship of design parameters and modes of operation of the device for multi-section aggregation of seeders with indicators of the technological process of sowing. A monographic survey of known structures has been carried out, a device for multi-section aggregation of seeding machines has been substantiated by the design and construction method, indicators of the technological process of sowing have been experimentally obtained. The developed coupling device for multi-section aggregation consists of a central frame resting on the wheels and articulated side sections: left and right, which fold when transporting the seeding unit. The total working width of the seeding unit is up to 12.5 meters. According to the research results, the quality of the technological process by the seeding devices meets the regulatory requirements. The instability of the total seeding (0.6–1.1 % for barley and 0.4–0.7 % for wheat) is within the tolerance (up to 3 percent); uneven seeding between devices 3.9–4.2 percent (barley) and 2.6–4.2 percent (wheat) corresponds to the norm (up to 5 percent). The number of seeds embedded at a predetermined depth of the soil corresponds to the required (not less than 80 percent) and was 81.8–83.9 percent for barley and 80.1–83.3 percent for wheat. Not embedded seeds were found in the soil.

scholarly journals Modeling of soil tilling and planting unit

2020 ◽  
Vol 11 (3) ◽  
pp. 61-66
Author(s):  
T. V. Gayday ◽  
◽  
Keyword(s):  
Mathematical Model ◽  
Technological Process ◽  
Soil Surface ◽  
Point Of View ◽  
Design Parameters ◽  
Technical Parameters ◽  
Initial Seed ◽  
Resistance Forces ◽  
Green Manure Crops

This research is aimed at increasing the efficiency of the technical and technological process of small-seeded green manure crops sowing by combining technological operations of a soil-tilling and planting unit (STPU) and improving the design parameters of the scatterer. A scheme of a soil-tilling and planting unit with a scatterer and a control means is proposed, and a concept of the functioning of the technological process of a soil-tilling and planting unit is determined. To study the technological process of small-seeded crops sowing, which is implemented by the STPU, it is important to build a mathematical model of the dynamics of the process for further optimization of both the process itself and the parameters of the sowing apparatus. The simulation includes the development of a model of the dynamics of the STPU travel on the field, taking into account the corresponding traction and resistance forces, the turning moments and the moments of resistance to turning of the tractor, as well as the calculation of the parameters of the seed output from the seed hopper, the dynamics of its travel in the seed tubes to the point of contact with the scatterer and the seed scattering formula on the soil after exiting the seed tubes. The obtained models allow us to determine the technical parameters of various working devices included in the STPU, from the point of view of their compliance with the activities for the quality of the task. The main attention is focused on determining the design parameters of STPU elements based on the construction and research of relevant mathematical models and calculation expressions. In this direction, a study was carried out to determine the optimal components: geometric design parameters and the angular velocity of the seed roller (wк), the initial seed speed in the seed tubes specified by the compressor fan (Vcf), the angle of inclination of the diffuser plate (β) and its height above the soil surface (Hs)) An advanced mathematical model allows you to simulate tillage and sowing units with different working widths.

scholarly journals Optimization of structural and kinematic parameters of separator of vegetable and melon crops

2020 ◽  
Vol 107 (3) ◽  
pp. 105-112
Author(s):  
D. Babenko ◽  
◽  
O. Gorbenko ◽  
N. Dotsenko ◽  
N. Kim
Keyword(s):  
Technological Process ◽  
Optimal Combination ◽  
Design Parameters ◽  
Kinematic Parameters ◽  
Optimization Criteria ◽  
Seed Loss ◽  
Factors Influencing ◽  
Lattice Surface ◽  
Main Factors

Optimization of structural and kinematic parameters of separator of vegetable and melon crops It was determined in the article the optimization criteria, which were used to evaluate the quality of the technological process. The main factors influencing the operation of the vibrating separator are revealed: the angle of inclination of the lattice surface, the frequency of oscillations of the sieve, the amplitude of its oscillations, the angle of application of the oscillation force and the length of the sieve. The optimization criteria were chosen: purity, magnitude of injury and the level of seed loss. The ranges of optimal combination of independent factors are indicated. Keywords: vegetable and melon crops, separator, kinematic and design parameters.

scholarly journals Boring a Discontinuous Surface: the Choice of Technological Modes

2019 ◽  
Vol 297 ◽  
pp. 01009
Author(s):  
Alexander Firsov ◽  
Alexander Qvcharenko ◽  
Alexander Romashev ◽  
Vitaly Smirnov ◽  
Aleksey Kamardin
Keyword(s):  
Technological Process ◽  
Design Stage ◽  
Technical Solution ◽  
Technical Documentation ◽  
Dynamic Effects ◽  
Discontinuous Surface ◽  
Quality Requirements ◽  
The Subject

The article deals with issues related to ensuring the quality of machining of a discontinuous surface. The subject of research is the technology of boring holes. Machining holes with intermittent areas on the surface is difficult due to the occurrence of dynamic effects. As a rule, regulatory and technical documentation does not give specific recommendations for such cases. The authors of the article describe the introduction of additional conditions, which allow determining the modes of boring holes with intermittent areas on the surface at the design stage of the technological process. This solution ensures that the part meets the specified quality requirements and allows you to verify the correctness of the technological decisions. The algorithm for selecting boring modes of holes with discontinuous surfaces implements the proposed technical solution in practice.

scholarly journals Functional dependences of the performance of a mixer with helical blades

2020 ◽  
Vol 17 ◽  
pp. 00033 ◽  
Author(s):  
Vladimir B. Novikov ◽  
Vladimir V. Konovalov ◽  
Alexander L. Mishanin ◽  
Marina V. Borisova ◽  
Alexey S. Gretsov
Keyword(s):  
Power Consumption ◽  
Technological Process ◽  
Agricultural Sector ◽  
Rotation Frequency ◽  
The State ◽  
Operating Parameters ◽  
Functional Dependencies ◽  
Shaft Speed ◽  
Livestock Development

The level of livestock development is one of the indicators characterizing the state of economy not only of individual farms, but regions and state as a whole. Therefore, the solution to the problem of the improvement of the quality of feed and modernization of process of its production is relevant and significant for agricultural sector. In order to improve and study the technological process of mixing the grain mixture, a design of a continuous paddle mixing unit was developed. The purpose of the research is to establish functional dependencies on the design and operating parameters of a mixer with helical blades and determine their rational values. The influence of the shaft rotation frequency, the number of its blades and the state of tank fullness on the unevenness of the mixture, productivity and power consumption is determined. The increase in the degree of fullness and shaft speed intensifies the performance of the mixer. The highest mixer performance is provided by 6 blades. The increase in the shaft speed intensifies the power consumption of the mixer. The degree of fullness of the tank and the number of blades also increase power consumption, but to a lesser extent. The best quality of the mixture is provided by 8 blades with a degree of fullness of 2 5 % and a rotation frequency of 40 min-1 with a mixer capacity of about 180 kg/h and a power consumption of 270 watts.

CONTROL IN REAL TIME THE DENSITY OF PRODUCT AT VARIOUS STAGES OF THE TECHNOLOGICAL PROCESS OF SUGAR PRODUCTION

2020 ◽  
Author(s):  
S.B. Kudryashev ◽  
◽  
N.S. Assev ◽  
R.D. Belashov ◽  
V.A. Naumenko ◽  
...  
Keyword(s):  
Real Time ◽  
Technological Process ◽  
Sugar Industry ◽  
Sugar Production ◽  
Production Processes ◽  
Quality Of Products

The article is devoted to solving one of the most important problems of the development of the sugar industry in Russia – the modernization of sugar production processes. Today, sugar production is actively being modernized, shifting most of its processes to the path of avomatization and optimization to improve the quality of products. This article describes one of the main ways to obtain information about the concentration of sucrose in syrup in the production of sugar.

MODIFYING THE TECHNOLOGICAL PROCESS OF A HAULM TOPPER TO IMPROVE THE QUALITY OF TABLE POTATO

2018 ◽  
pp. 7-12
Author(s):  
АNDREI B. KALININ ◽  
◽  
IGOR Z. TEPLINSKY ◽  
ОLEG V. SMELIK ◽  
ALEKSANDRA А. MANOKHINA ◽  
...  
Keyword(s):  
Technological Process

Justification of design parameters of the fractional reaping conveyor and its devices for removal of beveled stems from under the wheels of the vehicle

2019 ◽  
Vol 1 (3) ◽  
pp. 1-10
Author(s):  
Mikhail M. Konstantinov ◽  
Ivan N. Glushkov ◽  
Sergey S. Pashinin ◽  
Igor I. Ognev ◽  
Tatyana V. Bedych
Keyword(s):  
Optimal Design ◽  
Technological Process ◽  
Design Parameters ◽  
Theoretical Studies ◽  
Optimal Parameters ◽  
Belt Conveyor ◽  
Grain Crops ◽  
Mode Of Operation ◽  
Optimal Values ◽  
Main Component

In this paper we consider the structural and technological process of the combine used in the process of separate harvesting of grain crops, as well as a number of its parameters. Among the main units of the combine, we allocate a conveyor and devices for removing beveled stems from under the wheels of the vehicle. The principle of operation of the conveyor at different phases of the Reaper and especially the removal of cut stems from under the wheels of the vehicle during operation of the Reaper. The results of theoretical studies on the establishment of the optimal design of the parameters of the belt conveyor are presented, the ranges of their optimal values are considered and determined. Studies on the establishment of optimal parameters of the screw divider in the Reaper, which is the main component of the device for removal of beveled stems, are presented. Taking into account the optimal design and mode of operation of the screw divider, the correct work is provided to remove the cut stems from under the wheels of the harvester.

Methodical approach to the assessment of the educational migration environment of the population of the Carpathian region

2019 ◽  
pp. 37-48
Author(s):  
Lyubov Semiv
Keyword(s):  
Institutional Conditions ◽  
Carpathian Region ◽  
Research Activities ◽  
Methodical Approach ◽  
Synthetic Indicator ◽  
Industry Collaboration ◽  
Migration Potential ◽  
Educational Migration ◽  
Main Components

The role and importance of the educational migration environment in activating migration movements of the population is described. The main components of the educational migration environment of the population are identified, and their features are outlined. Indicators have been proposed and the conditions for the formation of the educational migration environment of the population have been determined. It is proved that «freedom of knowledge movement» motivates students, teachers and researchers to combine educational and research activities with future employment abroad. The processes of educational migration in the form of cross-border education and academic mobility are presented. The concept of educational migration environment is defined and five main components of its formation are described: quantitative measurement of educational migration potential; quality of the academic environment; motivational conditions; opportunities for universities and industry collaboration in research; institutional conditions in the educational sphere. The list of indicators offered by the Ukrainian statistics is provided for quantitative representation of each component of the educational migration. Based on the method of multidimensional (cluster) analysis, the regional index of formation of educational migration environment is calculated. Using this method allows to move from the assessment of educational migration environment on 28 indicators to the construction of one synthetic indicator. Application of methodical approach allows to see the place of the region by the important parameters of development of the environment of educational migration of the population, to evaluate the attractiveness, opportunities and threats of formation of this environment in the regional dimension. It is proved that the «most favorable» environment in the Carpathian region has the Lviv region (4th place in Ukraine). Other regions of the Ukrainian Carpathians occupy in the ranking the lower places: respectively Ivano-Frankivsk (15th place), Chernivtsi (21st place), Transcarpathian region (24th place).

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