Justification of the optimal annual load on the tractor providing for its parameters stress on the formed crop

Khafizov, Camill; Khafizov, Ramil; Nurmiev, Azat; Galiev, Ilgiz

doi:10.1051/bioconf/20201700022

Cited by 7 publications

(6 citation statements)

References 2 publications

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“…Justification of the number of tractors required to perform operations on 1000 hectares will be based on the systematic mathematical model of machine-tractor units based on the optimization of the total energy costs. The model has been verified and reflects the operation of real units [18][19][20].…”

Section: Methodsmentioning

confidence: 99%

“…The article continues the research on optimization of technical parameters, whose results are presented in [17][18][19][20]. It discusses the methodology for substantiating the required amount of equipment to various technological operations in order to reduce the total direct and indirect energy costs, including the energy of the lost crop.…”

Section: Introductionmentioning

confidence: 99%

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Energy Justification of the Number of Tractors for Agricultural Operations

Khafizov

Nurmiev

et al. 2021

BIO Web Conf.

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The relevance of the problem under study is due to the need to substantiate the sufficient number of tractors used for various technological operations, depending on the volume of works performed, and taking into account their influence on the crop yield. The purpose is to develop the mathematical model of machine and tractor units used in technological operations by formalizing the vague concept of optimal agrotechnical timing of technological operations and calculating the optimal number of tractors to perform works by the total energy costs. The main research method is mathematical modeling of operations performed by machine-tractor units based on the system analysis and computational experiments and using the energy mathematical model. The article describes a criterion for optimizing the tractor parameters, dependences of the energy mathematical model of the unit. The results of computational experiments showed that for each operation there is an optimal number of tractors and tractor units minimizing the minimum total energy costs. Calculations were carried out when treating 1000 hectares with various tractors. It was revealed that the total energy consumption differs by 2 or more times. The required number of tractors depends on their main parameters, propeller parameters and other factors. It was revealed that with an increase in the volume of works, the required optimal number of tractors increases. The method for substantiating the required optimal number of tractors in technological operations will improve operations of tractors used by large agricultural producers, reduce the total energy costs for cultivating up to 12–16 thousand MJ/ha.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Energy Justification of the Number of Tractors for Agricultural Operations

Khafizov

Nurmiev

et al. 2021

BIO Web Conf.

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“…Применение данного типа привода облегчает процесс агрегатирования технологического оборудования на погрузчиках, экскаваторах и другой технике, обеспечивает снижение динамических нагрузок на двигатель. При этом предъявляются меньшие требования к навесной системе ввиду отсутствия карданной передачи, применение которой ограничивает высоту подъема технологического оборудования при его работе [14,16]. Чтобы оценить влияние других факторов на требуемую мощность базового шасси, рассмотрим процесс измельчения древесно-кустарниковой растительности диаметром 10 см при скорости движения шасси 0,2 м/с.…”

Section: результаты исследования и их обсуждениеunclassified

Power Characteristics of Mulcher Joints When Removing Tree and Shrub Vegetation

Ariko¹,

Voinash²,

Kononovich³

et al. 2021

Lesnoy Zhurnal (Forestry Journal)

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In recent years, the enterprises of forestry and the Ministry of Energy of the Republic of Belarus and other countries widely implemented advanced milling tools designed to chop wood, stumps and roots without immersing the cutter in the soil (mulchers) and with immersion (rotovators), which allows you to prepare the ground for planting forest crops. They can be mounted on multi-purpose tractors, loaders and excavators. At the same time, there are no methods that allow carrying out a reasonable choice of technological equipment for a particular basic machine, since a significant number of production, technological and technical factors have an impact on the emerging power and capacity parameters. The proposed method allows taking into account a significant number of variable values (working methods, speeds of various operations, parameters of the working body, its drive and base chassis, soil conditions, etc.) and simulate the interaction of milling tools under various operating conditions. It was found that the greatest loads on the mulcher rotor occur during the felling of tree and shrub vegetation, which is associated with an increase in the area of interaction between the cutters and the wood up to 2 times compared with the chopping of similar lying stands. This value can be reduced by 15–30 % depending on the diameter of the trunks being processed. In the case of a significant amount (cluster) of forest stands with a diameter of more than 10 cm, it is preferable to carry out work at a speed of about 0.2 m/s or advanced felling of these trees. The use of hydraulic travel (speed) reducers or hydrostatic transmission is promising in order to reduce dynamic loads and get better adaptability of the working equipment to natural-production conditions (the ability to work at a speed from 0 to 5 km/h). It should be noted that the installed required engine power for the milling equipment drive should be increased by 10–15 % due to the needs of the drive of various equipment located on the base chassis. Also, in the case of the integrated use of tree and shrub vegetation, it is possible to use mulchers that collect biomass; however, this will require additional energy costs. In this regard, the method can be applied when choosing the parameters of technological equipment for the existing base chassis, to solve the inverse problem, and also to select the operating mode of the milling equipment depending on the natural and production conditions with the possibility of subsequent prediction of the effectiveness of the work performed.

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“…Agricultural production is one of the main sectors of the country's economy, which constantly needs to attract mobile energy resources to carry out technological processes in crop and livestock production. The most promising way to meet the need for agricultural production in energy products is to increase their unit capacity [1,2]. In this regard, the gas turbine supercharged has found its wide use in connection with the ability to increase the single power of the internal combustion engine (by 40-50%) without complicating its design and with almost the same mass-size parameters.…”

Section: Introductionmentioning

confidence: 99%

Justification of the parameter that determines the ability of turbochargers of agricultural machinery engines to function

et al. 2021

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As a result of the analysis of statistics on the main failures of the turbocharger of tractor engines in agricultural production, it can be concluded that it is the condition of its bearing node, in the first place, determines the performance of the entire turbocharger. This ultimately affects the duration of the turbocharger rotor after the engine stops. The article considers the method of determining the rotation time of the turbocharger rotor by inertia depending on the following factors: the time of the pressure drop in the turbocharger grease system, the gap in the turbocharger bearing node, the frequency of rotation of the rotor before the engine stops. The results of experimental studies on the timing of the turbocharger rotor rotation after the engine stop for the regular mode of greasing the bearing node and when using an individual lubricant system are presented. Based on the experimental values obtained, it is concluded that the main indicator of the performance of the turbocharger is the duration of rotation of its rotor after the engine stops and the application of the individual system of lubrication of the bearing node of the turbocharger reduces the cost of bearing resource and increases the resource of the entire turbocharger of agricultural machinery engines at least twice.

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Justification of the optimal annual load on the tractor providing for its parameters stress on the formed crop

Cited by 7 publications

References 2 publications

Energy Justification of the Number of Tractors for Agricultural Operations

Energy Justification of the Number of Tractors for Agricultural Operations

Power Characteristics of Mulcher Joints When Removing Tree and Shrub Vegetation

Justification of the parameter that determines the ability of turbochargers of agricultural machinery engines to function

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