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Artículos de revistas sobre el tema "Tractors – Tires"

Autor: Grafiati

Publicado: 25 de julio de 2024

Última modificación: 31 de julio de 2025

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1

Janulevičius, Algirdas, Gediminas Pupinis, Justas Lukštas, Vidas Damanauskas, and Vaclovas Kurkauskas. "DEPENDENCIES OF THE LEAD OF FRONT DRIVING WHEELS ON DIFFERENT TIRE DEFORMATIONS FOR A MFWD TRACTOR." Transport 32, no. 1 (2015): 23–31. http://dx.doi.org/10.3846/16484142.2015.1063084.

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Tractors are the main machines in agricultural production processes. Agricultural tractors commonly employ a four-wheel drive transmission. To reach maximum efficiency in production works, tractors are loaded by as high thrust as possible. The consequence of it, quite often, is that the slippage of driving wheels grows to the limit that is not allowed. To reduce the slippage, various ways are pointed out in terramechanics. One way is to increase the tractor’s weight by adding ballast. The other way is to increase the contact area between tires and the supporting surface. The slippage can be al

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2

Rebrov, Oleksii. "BALLASTING AND DUAL TIRES USING OF WHEELED AGRICULTURAL TRACTORS UNDER THE CONDITIONS OF FULFILLING AGRO-ECOLOGICAL STANDARDS FOR SOIL INTERACTION." Bulletin of the National Technical University «KhPI». Series: Automobile and Tractor Construction, no. 2 (March 19, 2023): 98–107. http://dx.doi.org/10.20998/2078-6840.2022.2.11.

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The article presents an analytical approach to the implementation of ballasting and dual tires using of agricultural wheeled tractors, which is based on the unconditional fulfilment of agro-ecological standards of tires soil interaction. The necessity of harmonizing the indicators of the position of the centre of gravity of the tractor, the footprint area of the front and rear tires ratio, as well as their load capacity is shown. The need to use equal flotation in tractor’s tires during single and double use has been proven, which determines the need to maintain the position of the centre of g

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3

Rebrov, Oleksii, Boris Kalchenko, Maksym Yakunin, et al. "EVALUATION ANALYSIS OF THE RUNNING SYSTEM SOIL INTERACTION OF WHEELED AGRICULTURAL TRACTORS." Bulletin of the National Technical University «KhPI». Series: Automobile and Tractor Construction, no. 1 (March 19, 2023): 36–43. http://dx.doi.org/10.20998/2078-6840.2022.1.05.

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The article provides an evaluative analysis of the wheeled agricultural tractor’s running systems soil interaction. A sample of more than 600 MFWD tractors of the world's leading manufacturers was subject to analysis. To determine the parameters of the maximum soil pressure, the value of the footprint gross flat plate area is applied, assuming that the tires are operated under conditions characterized by the speed index A6 with a significant torque for a long time. It is obtained the calculated function of the probability distribution of the maximum pressure on the soil of a sample of modern w

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4

Akhmetov, Аdilbek, Sherzodbek Akhmedov, and Javlonbek Ishchanov. "Investigating the Impact of Speed and Tire Pressure of a Wheel Tractor on Soil Properties: A Case Study in Northeastern Uzbekistan." AgriEngineering 6, no. 3 (2024): 2067–81. http://dx.doi.org/10.3390/agriengineering6030121.

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In agriculture, machines engaged in various agrotechnical activities and operations have different impacts on the soil. The effect of mechanization is primarily reflected in two indicators: soil density and hardness. At the same time, considering the direct dependence of tractive resistance on soil hardness in processing machines and sprayers, we studied subsequent changes in the soil in the path of wheels affected by the soil after the passage of four-wheeled and three-wheeled tractors. We also examined various atmospheric pressures in the tractor’s tires and the impact of different types of

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5

Tukhtabayev, M. A., H. B. Atakhanov, and O. A. Sidikov. "Influence of tire internal pressure on soil compaction." IOP Conference Series: Earth and Environmental Science 1231, no. 1 (2023): 012009. http://dx.doi.org/10.1088/1755-1315/1231/1/012009.

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Abstract The article presents the results of choosing tires for driving wheels of cotton-growing row-crop tractors during inter-row cultivation. The track surfaces of tires 15.5-38, 16.9R38, 420/85R38 and 18.4R38 are compared on a rigid base. The track surfaces for hard base and maximum pressure of tires on soil, soil density and tire tread depth were determined in experimental studies. When choosing tires, their average qav and maximum q max pressures on soil were determined. In order to reduce compaction impact of the tractor’s undercarriages on soil, impact force of the tire internal pressu

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6

Janulevičius, Algirdas, and Povilas Gurevičius. "IMPACT OF THE INFLATION PRESSURE OF THE TIRES ON LEAD OF FRONT DRIVE WHEELS AND MOVEMENT RESISTANCE FORCE OF TRACTORS." Transport 34, no. 6 (2019): 628–38. http://dx.doi.org/10.3846/transport.2019.11233.

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The transmission of mechanical front-wheel drive tractors normally has a front axle lead ratio, which is equal to 1.5…2.5%. Naturally, when ballast masses are added to the tractor or when inflation pressure in the tires is reduced, distortion of the tires is inevitable, which changes the lead of the front wheels. In this paper, we present the impact of tire inflation pressures on the lead front drive wheels and movement resistance force when the tractor travelled with a front drive axle enabled and was engine braking with the fuel supply off. It was found that the variation in front and rear t

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7

Akhmetov, Adilbek, and Sherzodbek Akhmedov. "Influence of Tractor Tires on Soil: A Bibliometric Analysis Based on Scopus." E3S Web of Conferences 563 (2024): 03067. http://dx.doi.org/10.1051/e3sconf/202456303067.

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The role of agricultural machinery interacting with the main soil is performed by its wheels, which either amplify or mitigate adverse effects. Faced with climate change and population pressure, urgent research is needed in sectors like agriculture to enhance productivity, assess land suitability, optimize crop yields, and support sustainable development. This article presents a bibliometric analysis of tractor wheel impact on agricultural fields. Using the Scopus database, thousands of documents from 1948–2023 were processed. Results show a rising trend in publications. Leading sources includ

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8

Katrenčík, Jakub, František Bauer, and Petr Dostál. "The influence of the tire inflation on pull properties of agriculture tractors." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 61, no. 6 (2013): 1733–39. http://dx.doi.org/10.11118/actaun201361061733.

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Agricultural tractors are robust and versatile machines, which must comply with the basic requirements of users under various conditions. The main requirements include economical and reliable operation and high performance. Fuel economy could be improved using multiple methods, for example a well trained operator, adequate farming conditions and optimal tire inflation. Tractor tires transmit engine power to the surface and as such they are crucial to tractor operation. In the first part of the field measurement, all tires were inflated to 180kPa, while in the second part of the field measureme

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9

Samorodov, V. B., A. Yu Rebrov, and V. V. Kuchkov. "Increase of technical and economical parameters of wheeled tractors on the base of spatial and topologic approach." Traktory i sel hozmashiny 80, no. 7 (2013): 12–17. http://dx.doi.org/10.17816/0321-4443-65719.

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The spatial and topologic approach is considered as applied to solving the problem of increase of technical and economical parameters of wheeled tractors in conditions of variation of engine power, tires standard size, tractor mass and transmission gear ratio.

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10

Zolotarevskaya, D. I. "Analysis of the influence of the main factors on the characteristics of the elastic properties of elastic wheels of tractors." Traktory i sel hozmashiny 85, no. 4 (2018): 71–78. http://dx.doi.org/10.17816/0321-4443-66415.

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The work is devoted to the theoretical study of the elastic properties of tractor wheels and the analysis of the effect of air pressure in the tires and vertical loads on the wheel axles. According to the developed computer program, which allows to implement the method of calculating the characteristics of the elastic properties of tractor wheels with pneumatic tires proposed in this work, one-factor and complete factor computer experiments of two types were carried out. In computer experiments of the first type, the dependences of the elasticity coefficients of a number of elastic wheels were

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11

Kim, Wan-Soo, Yong-Joo Kim, Nam-Gyu Lee, Seung-Min Baek, Seung-Yun Baek, and Yeon-Soo Kim. "Influence of Tire Contact Area on the Traction Performance of a 67-kW Agricultural Tractor in a Paddy Field." Journal of the ASABE 65, no. 6 (2022): 1421–32. http://dx.doi.org/10.13031/ja.15008.

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Highlights The tire contact area of a tractor was adjusted through a combination of four tires to improve the traction performance in a paddy field. Traction performance according to tire contact area was measured and evaluated through a traction load measurement system of the tractor. The increase in the tire contact area reduced the slip ratio of the tractor and led to high traction performance. The results of this study suggest the possibility of evaluating and improving the traction performance of a tractor by considering the tire contact area. Abstract. Agricultural tractors operate on so

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12

M. A., Podrigalo, Artyomov M. P., Tretyak V. M., Krasnokutskyi V. M., and Omelchenko V. I. "Efficiency coefficient of tractor wheel drive while moving on ground." MECHANICS and AUTOMATICS of AGROINDUSTRIAL PRODUCTION, no. 1(116) (2023): 143–50. http://dx.doi.org/10.37204/2786-7775-2023-1-15.

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Purpose. The purpose of the study is to improve the energy efficiency of tractors when working on a deformable support surface by increasing the efficiency of the wheel drive due to the rational selection of its parameters. Methods. The methods of the theory of movement of traction vehicles and theoretical mechanics are used. Results. Analytical equations are compiled that describe the dependence of the interaction of wheels with pneumatic tires with the ground support surface. The effect of tangential soil compliance on the efficiency of a single wheel and wheel drive was determined, and the

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13

Maxmudjon, Melibayev, Dadaxodjaev Anvar, and Mamadjanov Mahmudjanovich. "Predicting The Residual Performance Resource of Pneumatic Tires." Journal of Mechanical Engineering 2, no. 1 (2025): 12. https://doi.org/10.47134/jme.v2i1.3704.

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This study aims to predict the residual performance resource of pneumatic tires used in agricultural machinery, particularly tractors, to optimize their lifespan and maintenance strategies. Understanding the durability and wear characteristics of pneumatic tires is essential for ensuring efficiency and reducing unexpected failures. The research employs static and dynamic prediction methods to estimate the remaining service life of tractor tires. The static prediction assumes a linear degradation over time, while the dynamic prediction incorporates periodic evaluations of tire conditions, allow

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14

Mamontov, Anatoliy, Yevhen Pelypenko, Olena Rebrova, and Vadim Shevtsov. "DETERMINATION OF RATIONAL OPERATING MODES OF OPERATION OF TRACTOR AGRICULTURAL TIRES." Technology transfer: fundamental principles and innovative technical solutions 4 (November 30, 2020): 36–38. http://dx.doi.org/10.21303/2585-6847.2020.001501.

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The efficiency of wheeled agricultural tractors when performing traction technological operations is characterized by two aspects. The first of these is traction efficiency, which mainly depends on the coupling weight of the tractor and the perfection of its running system. Another aspect is environmental friendliness, which is determined by the level of compaction impact on the soil. In general, these aspects are oppositely directed. That is, an increase in traction efficiency requires an increase in the grip weight and, as a consequence, an increase in the radial load on the tires and the in

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15

Truflyak, E. V. "Intelligent technology for determining the optimal air pressure in the tires of agricultural tractor wheels." Agricultural Engineering, no. 2 (2024): 13–19. http://dx.doi.org/10.26897/2687-1149-2024-2-13-19.

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The use of powerful tractors and wide-beam agricultural machinery, which have a strong compaction effect on the soil, is conditioned by the agricultural production profitability. The lack of a holistic systematic approach to reducing the anthropogenic compaction effect of wheel propulsors and working units of modern energy-intensive heavy machinery on the soil of agricultural landscapes requires the improvement of methods for determining the optimal air pressure in the tires of agricultural tractors. For this purpose, the authors developed an intelligent technology for determining the optimum

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16

Gorodetskiy, K. I., A. P. Parfenov, and A. M. Lavlinskiy. "GENERALIZED TRACTION INDICATORS OF AGRICULTURAL TRACTORS." Traktory i sel hozmashiny 84, no. 2 (2017): 3–8. http://dx.doi.org/10.17816/0321-4443-66246.

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In 1972 G.G. Kolobov and A.P. Parfenov published the monograph «Traction characteristics of tractors». The monograph generalized numerous results of field tests of domestic wheeled and caterpillar tractors of that time, conducted by machine testing stations in various soil and climatic zones of the USSR. This had an impact on formulation and study of the issue of determining of tractors slippage, and in general, the study of their traction characteristics. Averaging of the experimental data was carried out according to the formulas and coefficients developed by the authors of the monograph. Th

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17

Revenko, V. Yu, A. N. Nazarov, and V. I. Skorlyakov. "Method of calculating the pressure on the soil of wheeled tractors." Agricultural Science Euro-North-East 24, no. 5 (2023): 868–76. http://dx.doi.org/10.30766/2072-9081.2023.24.5.868-876.

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The market of tractors in Russia has changed greatly in recent years. A number of new suppliers have appeared on the market, abandoned brands are replaced for Russian analogues and machines from friendly countries. It is hard to evaluate all the quantitative and qualitative diversity of tractors provided to agricultural producers through the system of machine tests, especially considering that every manufacturer has a large number of standard size ranges of power equipment. Nevertheless, the customer should have access to information about the basic consumer properties and the degree of effect

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18

Okunev, G. A., V. L. Astaf'ev, and N. A. Kuznetsov. "Reduction of aftereffect of machine units on the soil." Traktory i sel hozmashiny 83, no. 12 (2016): 43–47. http://dx.doi.org/10.17816/0321-4443-66293.

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Cultivation of crops is associated with multiple passes of machine units through the fields. The cumulative effect of soil compaction caused by repeated impacts of movers of machine units is considered as especially dangerous. The most intensive compaction process occurres in spring. The repeated passes of heavy machines and the compaction of surface and subsurface soil horizons lead to the decrease in yield potential of fields. The solving of compaction problem depends on the soil and climatic conditions, zonal cultivation technologies and crop harvesting, and on the machine system in operati

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19

Szente, Márk. "Slip Calculation and Analysis for Four-wheel Drive Tractors." Progress in Agricultural Engineering Sciences 1, no. 1 (2005): 7–31. http://dx.doi.org/10.1556/progress.1.2005.1.2.

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The objective of the research of tires was to determine the dynamic rolling radius and to apply it to wheel slip calculations with special respect to vertical wheel load and to tire inflation pressure. It is typical of mechanical four-wheel drive tractors that there is a definite additional power in the tractor power chain. This additional power is dependent on the difference between the front wheel and rear wheel peripheral speeds. Further-more, the purpose was to determine the effect of additional slip on four-wheel drive tractors operated without drawbar pull. Experiments were performed on

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20

Okunev, G. A., and N. A. Kuznetsov. "Aspects of the development of the type of tractors and trends in the technical re-equipment of production units of various types." Izvestiya MGTU MAMI 11, no. 1 (2017): 16–22. http://dx.doi.org/10.17816/2074-0530-66888.

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Domestic and neighboring countries industry produce wheel and tracked tractors, which differ from each other by various parameters. The variety of general-purpose tractors offered on the market puts producers in the forefront of the choice of acquiring equipment to perform a set of technological operations. A comparative evaluation of the use of wheeled and caterpillar tractors of various traction classes on basic technological operations showed an increase in operating costs per unit of work performed with increasing parameters of tractors, especially wheeled propellers. The use of wheel trac

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21

Phakdee, Siwakorn, and Chakrit Suvanjumrat. "Finite Element Modeling of Tractor Tire Composite Structure to Analyze Inflation Pressure Effects on Compression." Materials Science Forum 1152 (June 17, 2025): 11–16. https://doi.org/10.4028/p-riphg9.

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Tractors play a crucial role in alleviating the workload of farmers across various agricultural processes, including land preparation, seed sowing, pest control, and harvesting. However, the direct contact of tractor tires with the soil often results in soil compaction, which adversely affects soil quality. A common approach to mitigate soil compaction is to lower the inflation pressure of agricultural tires, as this increases the tire's contact area and distributes the load more evenly. Nonetheless, reduced inflation pressure decreases the tire's vertical stiffness, thereby elevating the risk

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22

Lavrov, A. V., V. G. Shevtsov, A. V. Rusanov, and V. A. Kazakova. "Matching the Traction Qualities of Agricultural Mobile Power Vehicles with the Permissible Maximum Pressure on the Soil." Agricultural Machinery and Technologies 14, no. 3 (2020): 9–14. http://dx.doi.org/10.22314/2073-7599-2020-14-3-9-14.

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Modern highly mechanized agricultural production is characterized by the incompatibility of simultaneous matching of the maximum pressure of agricultural mobile equipment movers on the soil and the possibility of increasing the tractors energy saturation when equipping them with existing wheel engines.(Research purpose) To coordinate the maximum pressure on the soil with the permissible norms, weight utilization factors and the level of tractors energy saturation.(Materials and methods) The authors used a calculated method for determining the maximum pressure on the soil using a universal tire

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23

Kotsar, Yu A., A. A. Nitkin, and O. S. Kochegarova. "Features of operation of tractors on double tires." Agrarian Scientific Journal, no. 9 (September 24, 2018): 61–64. http://dx.doi.org/10.28983/asj.v0i9.442.

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24

Anisimov, Nikolay L., Eduard I. Efimov, Roman Yu Dobretsov, and Mikhail I. Dmitriev. "Selection of the analytical dependency for assessment of slipping of the Kirovets K-7 wheeled agricultural tractor." Izvestiya MGTU MAMI 17, no. 1 (2023): 25–33. http://dx.doi.org/10.17816/2074-0530-120130.

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BACKGROUND: The accuracy of prediction of towing properties is related to selection of the analytical dependency for assessment of slipping in the process of development or modernization of agricultural tractor in order to define the correct configuration of a machine-tractor unit. The relevance of the study lies in justification of the dependency describing slipping of wheels of modern high-powered 4K4b tractors and needed for study of tractors towing properties. AIMS: Justification of the analytical formula of slipping for better accuracy of towing properties prediction at development

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25

Lindhorst, Caleb M., Roger M. Hoy, Santosh K. Pitla, and Michael F. Kocher. "Dynamic ROPS Test for Tractors over 6,000 Kilograms." Transactions of the ASABE 61, no. 1 (2018): 53–62. http://dx.doi.org/10.13031/trans.12499.

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Abstract. OECD static tests (Codes 4, 6, 7, and 8) for agricultural rollover protective structures (ROPS) have become accepted standards for evaluating the ability of these structures to protect the operator during tractor rollover events. The strength properties of some materials typically used in ROPS change because of cold weather embrittlement at low temperatures. The static ROPS tests lack the ability to evaluate the strength of these structures during cold weather. The use of the dynamic ROPS test is well noted as a means for proving cold weather embrittlement resistance properties. Unfo

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26

Zakharchenko, A. N., V. I. Balabanov, P. I. Gadzhiyev, and G. G. Ramazanova. "Soil compaction by running systems of class 2 tractors." Traktory i sel hozmashiny 80, no. 6 (2013): 33. http://dx.doi.org/10.17816/0321-4443-65864.

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Procedure and results of field tests of narrow-tires tractors МТЗ-1221 and John Deere 6920 are given. The obtained data on soil density allows to develop recommendations on tractors use in tilled crops cultivation.

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27

Fanigliulo, Roberto, Marcello Biocca, Renato Grilli, et al. "Assessment of the Performance of Agricultural Tires Using a Mobile Test Bench." Agriculture 13, no. 1 (2022): 87. http://dx.doi.org/10.3390/agriculture13010087.

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The performance of agricultural tires varies with the characteristics of both the terrain and the tractors on which they are mounted, which differently affect the rolling resistance, the traction capacity, and the slip. To reduce the variability of test conditions, CREA developed an original mobile test (MTB) bench which consists of a dynamometric single axle trailer pulled by a tractor and can be used both in traction performance tests (driving wheels) and in rolling resistance tests (driven wheels). A control system alternatively operates the adjustment of traction force or slip, so that eac

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28

Nitkin, Alexey Anatolyevich, Yuri Alekseevich Kotsar, and Olga Sergeevna Kochegarova. "Increasing efficiency of operation of agricultural tractors with double tires." Agrarian Scientific Journal, no. 3 (March 29, 2021): 78–81. http://dx.doi.org/10.28983/asj.y2021i3pp78-81.

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The article discusses the problem of reducing the effectiveness of agricultural processes and performance indicators of a wheeled tractor with dual tires, which arises as a result of differences in the static radii of the outer and inner wheels of the tractor. Experimental tests of a wheeled tractor on dual tires using a measuring system based on a free-programmed controller “PLK-150c” are considered. Based on the results of the graphical analysis, recommendations are given to improve the performance of the operation of a wheeled tractor.

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29

Kalinin, Evgeniy, Olexander Saychuk, and Nadiia Kolpachenko. "EQUATION OF MOTION OF THE JOHN DEERE 6095B TRACTOR AS AN AUTOMATIC DRIVING OBJECT." Vibrations in engineering and technology, no. 3(98) (October 30, 2020): 44–55. http://dx.doi.org/10.37128/2306-8744-2020-3-5.

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The main issue that has to be solved in the formation of modern systems for automatic driving of tractors is the issue of obtaining information about the current state of the machine-tractor unit relative to a given trajectory. In terms of its quality, this information should reflect the rather stringent requirements of agricultural production for the accuracy of trajectory control. Thus, to create devices for automatic driving of tractors, it is necessary to know the characteristics and properties of these machines as objects from the point of view of the theory of automatic control. When exa

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30

Phromjan, Juthanee, and Chakrit Suvanjumrat. "Vibration effect of two different tires on baggage towing tractors." Journal of Mechanical Science and Technology 32, no. 4 (2018): 1539–48. http://dx.doi.org/10.1007/s12206-018-0307-5.

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31

Petrović, Predrag, Živko Stjelja, Predrag Popović, and Branko Spajić. "Longitudinal and transverse operational stability of the tractor from the aspect of safety in agrotechnical operations." Poljoprivredna tehnika 48, no. 4 (2023): 87–99. http://dx.doi.org/10.5937/poljteh2304087p.

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Abstract: In the Republic of Serbia, despite a certain decrease in the number of accidents with tractors in the period 2010-2020., the number of injured and killed people is still high. In previous analyzes of the causes of accidents with tractors, the reports were formally reduced to the following: the operator was under the influence of alcohol; unsafe and unsuitable driving on terrains with ups and downs as well as rural and forest roads; malfunctions of controls for: braking, steering, transmission (switching on and off to save fuel), malfunction of tires, etc.; malfunctions and lack of li

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32

Тretyak, V. M., V. V. Sheban, R. V. Oliadnichuk, O. F. Govorov, and R. V. Melnik. "Influence of hinged device parameters on negative resonance oscillations during the operation of machine-tractor unit in transport mode." Mehanization and electrification of agricultural, no. 12 (2020): 129–36. http://dx.doi.org/10.37204/0131-2189-2020-12-15.

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Annotation Purpose. Reducing the influence of resonance phenomena on the structural elements of a tractor of the KIY 14102 type when driving with an attached implement in transport mode. Methods. To solve this problem means of graph-analytical constructions, analytical geometry, oscillation theory and theoretical mechanics were used. Results. On the basis of the graphic-analytical analysis of the kinematic diagram of the tractor attachment of the KIY 14102 type, it was found that the position of the instantaneous center of its rotation significantly depends on the change in the angle between t

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33

Tarasov, V. N., I. V. Boyarkina, V. R. Edigarov, and V. V. Malyy. "Analytical justification of the load capacity of pneumatic tires for tractors and agricultural machinery." Traktory i sel hozmashiny 84, no. 8 (2017): 21–27. http://dx.doi.org/10.17816/0321-4443-66324.

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Information on the parameters and operating modes of pneumatic tires for tractors and agricultural machinery is contained in state standards in the form of tables in digital form. The variety of types, sizes and designs of tires makes it difficult to determine the tire parameters taking into account conditions and operating modes. The information on the tire parameters is insufficient due to the lack of information about the contact area of the tire with a solid support surface. The article suggests the dependences of the load-carrying capacity of a tire on the generalized geometric parameter

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34

Revenko, V. Yu. "Determining the Contact Patch Area of Tires of Tractors and Agricultural Machinery." Machinery and Equipment for Rural Area, no. 11 (November 22, 2024): 8–12. https://doi.org/10.33267/2072-9642-2024-11-8-12.

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The results of the analysis of the existing methods of determining the contact patch area of the tractor and agricultural machinery tires are presented, the need to develop a new method and technical means for determining the contact patch area is substantiated.

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35

Mikheev, A. V., Z. A. Kostrova, V. V. Belyakov, D. V. Zezyulin, and V. S. Makarov. "Analysis of possibilities for application of airless tires for motor-and-tractor vehicles and agricultural machinery." Traktory i sel hozmashiny 83, no. 5 (2016): 21–26. http://dx.doi.org/10.17816/0321-4443-66187.

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Ensuring of mobility and efficiency plays the key role in solution of problem of providing the stable, safe and efficient operation of mobile terrestrial motor-and-tractor vehicles, agricultural machinery, transport and technological complexes. At the present stage of development, for achievement of desired values of traction force and mobility, the application of airless tires becomes rational. This type of tires excludes the loss of mobility because of the loss of excessive internal gas pressure, and it is able to provide higher traction force in comparison with conventional pneumatic tires.

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36

Bulgakov, Volodymyr, Aivars Aboltins, Semjons Ivanovs, et al. "Theory of Movement of Machine-Tractor Unit with Trailer Haulm Harvester Machine." Applied Sciences 12, no. 8 (2022): 3901. http://dx.doi.org/10.3390/app12083901.

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Harvesting sugar and fodder beet tops is a complex technological process that requires the use of special harvesting machines. Trailed harvesters of different rows, which together with aggregate tractors form symmetric or asymmetric machine-tractor units, the movement of which in the horizontal plane is not always stable, are widely used. The purpose of this study is to determine the parameters of stable plane-parallel motion of asymmetric harvester machine-tractor unit based on numerical computer simulation of the obtained analytical dependencies. According to the results of the analytical st

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37

Podrubalov, Maxim, and Mikhail Mekhedov. "DESIGN FEATURES OF TRACTORS FOR WORK ON SLOPES." SCIENCE IN THE CENTRAL RUSSIA, no. 2 (April 28, 2023): 148–53. http://dx.doi.org/10.35887/2305-2538-2023-2-148-153.

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The problems of creating tractors, self-propelled chassis, forestry and agricultural machines of special designs for the mechanization of crop production, land reclamation and construction in hard-to-reach conditions of forest, agricultural and mountain lands are considered in the work. A comparative analysis of design solutions that have found application in domestic and foreign tractors used in the performance of technological and transport operations on sloping lands and badlands in agriculture and forestry is given. It is noted that a number of models of universal row-crop tractors provide

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38

Revenko, V. Yu. "New Methods for Determining the Area of the Contact Surface of Tires of Agricultural Machines and Tractors." Machinery and Equipment for Rural Area, no. 2 (February 26, 2023): 10–15. http://dx.doi.org/10.33267/2072-9642-2023-2-10-15.

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The advantages and disadvantages of existing methods for estimating the size of the tire contact patch are considered, new methods for determining the area of the contact surface of tires of agricultural machines and tractors (the "pixel count" method and the method for converting a raster image of a print into a vector format) are presented.

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39

Melikov, Izzet, Vladimir Kravchenko, Sergey Senkevich, Elnara Hasanova, and Lyudmila Kravchenko. "Traction and energy efficiency tests of oligomeric tires for category 3 tractors." IOP Conference Series: Earth and Environmental Science 403 (December 19, 2019): 012126. http://dx.doi.org/10.1088/1755-1315/403/1/012126.

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40

Abrahám, Rudolf, Radoslav Majdan, Katarína Kollárová, et al. "Spike Device with Worm Gear Unit for Driving Wheels to Improve the Traction Performance of Compact Tractors on Grass Plots." Agriculture 14, no. 4 (2024): 545. http://dx.doi.org/10.3390/agriculture14040545.

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In general, energy loss reduction via the interaction of tires with the ground improves tractor traction performance when a drawbar pull is generated. This paper is examines the driving wheels with steel spikes for a tractor equipped with modern radial tires. An improved design of the spike device that allows for the change between an active and inactive position of the spikes is presented. The traction performance of a compact articulated tractor with the spike device was tested on a grass plot with two soil moisture contents (SMC). The highest difference in the drawbar pull in the range from

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41

Song, Hyun Seok, Kyung Seok Sim, and Tae Won Park. "Optimal tread design for agricultural lug tires determined through failure analysis." Journal of Agricultural Engineering 49, no. 1 (2018): 64–70. http://dx.doi.org/10.4081/jae.2018.685.

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Agricultural lug tires, commonly used in tractors, must provide safe and stable support for the body of the vehicle and bear any additional load while effectively traversing rough, poor-quality ground surfaces. Many agricultural lug tires fail unexpectedly. In this study, we optimised and validated a tread design for agricultural lug tires intended to increase their durability using failure analysis. Specifically, we identified tire failure modes using indoor driving tests and failure mode effects analysis. Next, we developed a threedimensional tire model using the Ogden material model and fin

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42

Grigorev, Igor, Ol’ga Kunickaya, Evgeniy Tikhonov, et al. "Methodology for Assessing and Managing the Environmental Performance of Skidding and Feller Buncher Tractors." Forests 12, no. 12 (2021): 1723. http://dx.doi.org/10.3390/f12121723.

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Systematic assessments on the effects of skidding systems on features of forest blueberry pine soil were conducted as part of this study. Assessing the ecological efficiency of forest skidding machines showed that the most significant impact (by 2.0–2.2 times) on soil compaction was observed at loading sites rather than during transportation. Lightweight loam density and sand density increased by 25% and 2%, respectively, after more than two passages of the skidding system. Pressure in 33L-32 tires of forestry machinery in operation on a solid surface varied from 46.5 kPa to 196 kPa at maximum

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43

Nadykto, Volodymyr, Gennadii Golub, Volodymyr Kyurchev, Nataliya Tsyvenkova, Gennadii Petrov, and Yaroslav Yarosh. "Determining vertical oscillations of front-plow tractor without support wheel." Eastern-European Journal of Enterprise Technologies 1, no. 7 (127) (2024): 37–47. http://dx.doi.org/10.15587/1729-4061.2024.296842.

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The object of this study is a tractor with a front plow without a support wheel. One way to avoid the use of ballast is to use front-mounted plows that operate under the "push" mode. As a rule, such plows are equipped with at least one supporting wheel. The presence of the latter complicates the structure of the plow and, of course, affects the degree of vertical load on the steered wheels of the mobile vehicle. With the help of the constructed mathematical model and the corresponding amplitude and phase frequency characteristics, the dynamics of vertical oscillations of the front axle of a tr

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44

Grigorev, Igor, Olga Kunickaya, Albert Burgonutdinov, et al. "Modeling the effect of wheeled tractors and skidded timber bunches on forest soil compaction." Journal of Applied Engineering Science 19, no. 2 (2021): 439–47. http://dx.doi.org/10.5937/jaes0-28528.

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An increasing demand for forest products incites a large number of log transportation operations, which may lead to negative consequences for the soil and the ecosystem as a whole. This paper is focused on establishing a mathematical model to estimate the soil deformation and compaction processes under tires of wheeled forest machines and individual components of the skidding system such as forwarder, limbs, butts, and tops of tree-lengths in high latitudes, permafrost soil and forests. The method applied is based on simulating the impact processes of elastic tires and the skidding system on t

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45

Bulgakov, Volodymyr, Simone Pascuzzi, Volodymyr Nadykto, et al. "Effects of Tractor and Soil Parameters on the Depth of the Permanent Traffic Lanes in Controlled Traffic Farming Systems." Applied Sciences 12, no. 13 (2022): 6620. http://dx.doi.org/10.3390/app12136620.

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One of the basic requirements for controlled traffic farming (CTF) is the precise motion of all agricultural equipment on permanent traffic lanes (PTL). Tractors of machine-tractor units are then equipped with a GNSS (global navigation satellite) RTK (real-time kinematic) system, even though in many parts of the world, and Europe as well, satellite navigation is not yet used. In this case, for implementation of the CTF system, it needs to lay such PTL tracks that would be sufficiently visible, especially when using the CTF system in multi-year agricultural crop cultivation. The PTL track depth

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46

Kravchenko, Vladimir Alekseevich, Lyudmila Vladimirovna Kravchenko, and Izzet Melukovich Melikov. "Evaluation of traction-chain properties of powerful tractors and combines complete with varieties of various performance." Agrarian Scientific Journal, no. 8 (August 31, 2020): 83–88. http://dx.doi.org/10.28983/asj.y2020i8pp83-88.

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The purpose of this study is to determine the traction and coupling properties of the undercarriage systems of wheeled mobile energy vehicles equipped with tires with different internal structures of the tire cover. It has been proved that the breaker ply rating for class 5 tractor should be equal to four, the carcass ply rating should be equal to six, the cord threads of the breaker and the carcass should have the slope of 70 and 0? respectively; the values of the corresponding tire parameters should be: 7, 6, 62, 15? for the propulsor of a combine. It has been established that when the under

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47

An, Yuhui, Lin Wang, Xiaoting Deng, Hao Chen, Zhixiong Lu, and Tao Wang. "Research on Differential Steering Dynamics Control of Four-Wheel Independent Drive Electric Tractor." Agriculture 13, no. 9 (2023): 1758. http://dx.doi.org/10.3390/agriculture13091758.

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Traditional tractors can only achieve steering through mechanical structures such as steering knuckles and steering trapezoids. Among them, the mechanical structure is more complex, and various parts are easily damaged, making the tractor malfunction. The four-wheel independent drive differential steering mode differs from the traditional Ackermann steering mode, which realizes steering by controlling the inner and outer wheel torque, which can accurately steer the working state of high-end agricultural machinery equipment and improve the operating efficiency of agricultural machinery equipmen

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48

ATLI, Hüseyin Fatih. "Safety of agricultural machinery and tractor maintenance planning with fuzzy logic and MCDM for agricultural productivity." International Journal of Agriculture, Environment and Food Sciences 8, no. 1 (2024): 25–43. http://dx.doi.org/10.31015/jaefs.2024.1.4.

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Productivity is one of the most important measures used to determine the growth and development level of countries or sectors. A wide variety of projects have been planned and implemented to increase agricultural productivity. The productivity to be obtained in agriculture; Soil conditions, climate, seeds, fertilizer, pesticides, labor and agricultural mechanization directly affect it. Agricultural mechanization is the realization of agricultural activities by using energy together with agricultural tools and machines. Agricultural mechanization; It is an important agricultural production tech

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49

Zazulya, A. N., O. B. Filippova, and I. G. Golubev. "Method for Determining the Pressure of a Pneumatic Wheel on the Soil." Machinery and Equipment for Rural Area, no. 12 (December 22, 2021): 29–31. http://dx.doi.org/10.33267/2072-9642-2021-12-29-31.

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A method for determining the pressure of a pneumatic wheel on the soil is proposed. The method consists in measuring the magnitude of the vertical acceleration of the axles of a self-propelled vehicle, its speed and air pressure in the tire. The research results allow the developers of vehicles fitted with pneumatic wheels to choose rational characteristics of tires and optimal parameters of the oscillatory system of wheeled tractors, which help to reduce soil compaction.

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50

Tarhan, Sefa, and Kazim Çarman. "Modeling the Torque and Power Requirements of Traction Tires of Horticultural Tractors using Dimensional Analysis." Mathematical and Computational Applications 9, no. 3 (2004): 427–34. http://dx.doi.org/10.3390/mca9030427.

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