INMATEH - Agricultural Engineering

6

Authors: Zayets M., Sukmaniuk E, Grudovyi R.

In the article, we examine the determination of the distributor optimal shape and the seeds distribution process by combined distributor in the form of a curved prism. Based on calculations we found out that seeds distribution uniform for bandwidth depends on the distributor shape that is sown with the opener for cereals continuous sowing. Formulas for determining the seed speed on the distributor surface were recorded, depending on changes of structurally technological parameters including generating circle prism diameter. It was recorded the mathematical model of the coordinates and the seed trajectory and the range flight seed of ideal forms. Uniformity of seeds distribution for opener widths will be characterized by the seeds flow speed on the distributor sloping plot of guiding and coordinates falling on the distributor surface. The effect of the distributor sloping plot length on seeds uniformity distribution was researched, the obtained dependences of the flight distance determining on the seeds distributor sloping plot length and seeds uprising speed through which the optimal lengths of sloping plot was selected. The paper presents the main results of theoretical studies and recommendations for this type of passive distributors use in opener for subsoil-spreading crops sowing method.

6

Authors: Kuznetsov Y.A., Volzhentsev А.V., Kolomeichenko А.V., Kalashnikova L.V.

A new method for assessing the quality of fluidization is proposed, which allows providing more uniform heating of grain material and intensify its drying process.

6

Authors: Golub G.A., Kepko O.I.

A simulation mathematical model is proposed for the analysis of energy intensity of mushrooms production and greenhouse plants in the closed system of heating and ventilation of greenhouses of the type “plant greenhouse - mushroom greenhouse”

6

Authors: Popovych P.V., Lyashuk O.L., Shevchuk O.S., Tson O.P., Poberezhna L.Ya, Bortnyk I. M.

The corrosiveness of cattle manure and mixed manure is considered to be low in relation to standard materials used in agricultural vehicles’ metal structures – steels: standard steels (St.3 Steel, St.5 Steel) and quality steels (10 Steel, 15 Steel, 20 Steel, 25 Steel). Local corrosion damages caused by sticking particles (straw, etc.) are found. The corrosion rate of steels groups under investigation for the first day of exposure in filtered manure is found to be in the range of 0.031 to 0.042 mm/year. This rate is 3 to 4 times lower than the rate of corrosion caused by standard test rainwater solution where the further rate reduction up to 0.003 mm/year is caused by inhibitory properties of manure chemical components. In general, the corrosion of steels under study in liquid cattle manure and mixed manure occurs by an electrochemical mechanism. In comparison with distilled water, steady state potentials of the steels under study in these environments assume negative values, and the corrosion currents are to 5 times lower. Tafel constants are higher than in distilled water, which indicates the complexity of both electrode reactions as compared with the standard test environment.

6

Authors: Yanovich V.P., Kupchuk I.M.

The article shows a schematic diagram of a vibrating disk-type grinder for chopping corn starch substance in ethanol production, achieving the idea of a combined interaction between vibrational and rotational motion of the working body, a combination of shock and cutting impact of working bodies on the material, which will handle both certified substance and substance materials with a high moisture content without significantly reducing equipment bandwidth and ensuring the timely product withdrawal from the grinding zone. Also, were determined the rational vibration modes of the disk cutters by experimental evaluation of equipment performance, which resulted in a performance charts depending on the angular speed of the rotor, sieve orifice diameters and humidity.

8

Authors: LÜ Xiaolian, HU Zhichao, LÜ Xiaorong, PENG Baoliang

Garlic harvesting is an important part during the garlic production process. Currently, the major obstacles of the garlic industry development are labour intensity, high farming time, significant losses and low efficiency. According to the characteristics of garlic cultivation in China and based on the current design experience, a half-fed and self-propelled garlic harvester, suitable for garlic producing within most areas of China, was developed. The main working parts contain the devices of stalk-dividing, stalk-lifting, stalk-clamping and conveying, clod-removing, align-cut seedling, as well as garlic collecting system, etc. To ensure the digging effect and improve working quality and stability of the machine, the combined working principle of digging and lifting has been adopted. The functions of garlic align-cut device are to align garlic and cut garlic from seedling; the handle length of cut garlic is accordance with production requirements at the same time. Through the field performance test of the garlic harvester, the operation performance is tested for stalk lifting device and align-cut device in different operating conditions. The operating performance in field is assessed through testing the machine’s key performance indicators for different operating speeds. Solutions were suggested after analysing the main causes that impact its operating performance. Testing results showed: the machine has good manoeuvrability and high working efficiency; garlic loss rate≤1.8%, garlic picking broken rate≤2.1%, containing soil rate≤12.8%; all the performance indexes met the design requirements.

8

Authors: Dmytriv V.T., Dmytriv I.V., Lavryk Y.M., Krasnytsia B., Bubela T.Z., Yatsuk V.O.

A mathematical model of a regulator for the vacuum gauge pressure with the dual mass valve-damper system was studied in the article. The differential equation was solved as well as eventual equations that simulate the valve and load moving depending on the following parameters: amplitude, oscillation of vacuum gauge pressure, load mass, valve diameter, springing of spring, damper environment description. The results of theoretical and experimental research of valve and load moving of vacuum gauge pressure regulator with the dual weight valve-damper was determined in conditions of different pressure and attenuation coefficient and also the characteristic oscillation frequency of the valve and load mass.

8

Authors: Kolev Z. D., Kadirova S. Y., Nenov T. R.

The aim of the article is to investigate the influence of the airflow velocity on the main parameters of а reversible heat pump installation, as the airflow crosses the external surface of heat exchange apparatus of the “water – air” convector. The main installation parameters, working in "heating" regime at specific values of airflow velocity have been investigated. The investigated parameters are: heat convection coefficients and convector heat transfer coefficient; internal and external installation heat flows; heat pump performance coefficient.

8

Authors: Kharytonov M., Martynova N.,Sitnyk S., Naumenko M., Pidlisnyuk V.

Five genotypes of the Miscanthus Anderss genus have been studied. M. sacchariflorus has very long rhizomes which quickly colonize the big areas. M. Giganteus, M. oligostachyus and particularly M. sinensis are more cespitose, their spread is slow and there is little risk of uncontrolled invasion of hedges or field, compared to the M. sacchariflorus. Despite that stands of M. sacchariflorus tend to be larger but less dense than stands of other Miscanthus species, M. s. “Gracillimus” has the highest stem density per unit of area. The biomass yield of Miscanthus per area in the earliest years of cultivation depends on the planting density. Under steppe conditions, optimal planting density is 14800 piece/ha for M. sacchariflorus and M. Giganteus and 20000 piece/ha for other species. Harvesting of above-ground biomass was made in the end of a growing season in October. It was revealed that during the drying process, plants lost up to 44% of water. Nevertheless, this indicator varies among species from 37.3% - M. sacchariflorus to 43.9% - M. oligostachyus. During the second year, substantial growth of productivity was observed for all species. Yield increased from 2.5 (M. sinensis) to 3.6 times (M. oligostachyus). In absolute measures, the largest values were noted for M. Giganteus (6.76 t/ha). The work results show that optimum time for biomass harvesting is late autumn (November) for the solid types of fuel production or the end of the growing season (October) for the bioethanol production.

8

Authors: Lutsiv I.V, Hevko I.B., Lyashuk O.L., Dubynyak T.S.

Elastic-conical SCl design for decreasing of impact loadings in half-couplings of screw conveyer safety clutches at the moment of their wearing is offered. Analytical dependence of impact loadings determination at direct and torque shocks in the investigated clutch with gap S of spring installation and certain safety clutch without gap is given. Graphic dependences of these relations on gap S and spring tension C and graphs of axial and rotational velocities dependences on impacts from inclination angle of nonworking limit β are shown.

8

Authors: Nourani A., Bencheikh A.

This work aims to determine the energy use for greenhouse vegetable production and to estimate the mechanization index in Biskra province (Algeria).The results revealed that the total energy required for vegetable protected production is 119.68 GJ per hectare where the infrastructure was the highest energy consumer followed by the electricity and fertilizers with a share of 22%, 20% and 19%, respectively. The energy use efficiency was calculated as 0.82, showing the inefficiency use of energy in the protected vegetable production. The entire farmers use least machinery labour energy in hectare compared to the human energy and the itinerary crop is similar for all greenhouses.

8

Authors: Zhonghua Ni

Water storage pit irrigation is a common irrigation method widely used in the northern part of China which can combine water-saving irrigation with soil and water conservation. Applying this method, this study analyzed different temperature and water content of the soil and established correlative models to study the water and nitrogen transport of soil in water storage pits. The results showed that the difference between the measured values of water and nitrogen obtained from the models and the actual values was small, either under different temperature or irrigation amount, suggesting that the models were correct.

10

Authors: Baranovsky V.M., Potapenko M.V.

Based on the theoretical analysis of root crops lifting process, the simulation models are shown describing the relation of the feed per second of root crops coming to the cleaners, or the change of the cleaner required throughput capacity depending on the vibrating lifter design parameters, agro-biological characteristics of chicory root crops and working conditions of root-gathering machine

10

Authors: Hevko R.B., Yazlyuk B.O., Liubin M.V., Tokarchuk O.A., Klendii O.M., Pankiv V.R.

The article presents a research technique on the process of simultaneous transporting and stirring of mixture components by a continuous-flow conveyor. Kinematic motion parameters of loose materials in the main characteristic route segments have been substantiated. Experimental studies have been conducted in order to determine the drag force in set route segments and the stirring rate of mixture components. The obtained results provide a mean of choosing cost-effective operating modes of a conveyor-mixer, whereby the specified quality of mixtures is achieved.

10

Authors: Zhipeng Li, Songzhuo Shi

Agricultural towing vehicles are driven under poor road conditions. The impact of rough road surface seriously affects the driving safety of agricultural towing vehicles. The mechanism of vibration of agricultural towing vehicles caused by rough roads is explored to reduce the adverse effects of road surface impact on the handling stability of agricultural towing vehicles and to improve the handling and steering stability of vehicles. First, the adverse effects of rough road input conditions on the handling stability of electric power steering (EPS) system were considered, and the kinetic model of the EPS system and the eight degree-of-freedom models of the whole vehicle were established. Second, tire and road surface impact models were introduced. Finally, the stability of the steering system under rough road input conditions was analyzed. Results show that the current following accuracy of the proposed motor control system is increased by 5%, and the final return-to-center residual angle of the steering wheel is 15 degrees. This study indicates that the vehicle vibration caused by road surface impact affects not only the driving stability of vehicles but also the smooth return of the steering system. The motor control system designed in this study effectively reduces the adverse effects of road surface impact on the steering system. The analysis and research process and the results are suitable for the investigation on the return-to-center performance of the EPS system for passenger and freight cars and the response of vehicle handling stability under different vibration sources.

10

Authors: Ji Hengying, Shao Ming-an, Jia Xiaoxu

Considering the serious soil and water losses that impede the development of agricultural production in Loess Plateau in China, this study investigated the soil water infiltration, runoff yield, and sediment yield through simulated rainfall using rainfall water of different qualities; additionally, this study investigated the influence of water quality on rainfall-induced erosion. The effects of rainfall water quality on soil erosion under artificial simulation were studied in the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau from 2015 to 2016. This experiment used four rainfall water types (water, natural precipitation, natural hydrops, and tap water) and three typical loess plateau soil samples (Loessal soil, Lou soil, and laminated Lou-Sand). The effect of water quality on soil erosion under the same rainfall intensity (60mm/H) and slope (5°) was determined. Results showed that the intensity of rainfall erosion was significantly affected by water quality, and soil erosion intensity gradually decreased with increased sodium adsorption ratio and conductivity (water

6

Authors: Żelaziński T., Ekielski A., Siwek A., Stachelska M., Florczak I.

The aim of the study was to produce extruded material with the highest possible content of spelt and to examine the qualitative properties of the products obtained. Tests were carried out on a synchronous twin-screw extruder with L:D ratio 27, at different temperatures, screw speed, material feeding and raw material moisture. To determine the quality properties there were used parameters such as density, expansion, WSI and WAI, water activity and porosity. The results were promising, all the products were characterized by a high degree of water-holding capacity, and their quality was similar to conventional corn extrudates

8

Authors: Vasylkovska K.V., Lect.Ph.D.Eng. Leshchenko S.M., Vasylkovskyi O.M.,Petrenko D.I.

The article presents the key tendencies of improving machines for subsoil basic tillage and sowing machines in order to implement resource-saving cultivation technologies and the basics of harvest forecasting. The suggested design of the combined chisel deep tiller with additional deformers and twin toothed rollers enable achieving better quality indicators of tillage while cultivating heavy soil. The new pneumatic and mechanical sowing device with peripheral layout of cells on the seeding disk and passive device for taking out excess seeds by centering method, was developed. The new sowing device assures even distribution of seeds on the feeding area. The article presents key results of the research and recommendations for application of the suggested machines.

8

Authors: Popovych P.V., Lyashuk O.L., Murovanyi I.S., Dzyura V.O., Shevchuk O.S., Myndyuk V.D.

The analytical models to determine the residual service life of metal undercarriages of open profile fertilizer spreaders at exposure in organic and mineral fertilizers environments are developed. The service life of rail elements is considered as the sum of periods of formation and subcritical growth of fatigue cracks. The formulae for determining stress intensity factors near existing cracks are developed, as well as the formulae for determining the service life of “Z” cross section and “Ώ” cross section. The kinetic equations for determining the formation and distribution periods are deduced. When examining the calculations, it was found that mineral fertilizers in comparison with organic ones greatly reduce the service life of elements under study.

8

Authors: Polyevoda Y.A., Hurych A.J., Kutsyy V.M.

In the article, we sustained the heat exchange process and regime parameters and defined the changing patterns of temperature characteristics of the pressure in the working area in terms of vapour-contacting heating in container.

8

Authors: Kadirova S. Y.

The influence of the moisture in the process of thermal-moisture treatment of oilseed material has been determined. The behaviour of the electronic system for adjustment of oilseed moisture has been investigated. For this purpose, experimental data on the current moisture values have been obtained in treatment period via grain sample method. The obtained experimental data have been statistically compared with the simulation results from a model, which describes the thermal-moisture process.

8

Authors: Zolotovs’ka O.V., Kharytonov M., Onyshchenko O.

Pilot-scale trial data on combined energy cycle – adjustment for boiler system for pyrolysis gas use had demonstrated technical feasibility of implementation of combined energy cycles for facilities where secondary agricultural residues are available in sufficient quantities. The results of the energetic analysis of technologies of gas production from solid biomass through the pyrolysis are considered. Examples of the introduction of the technology of direct gasification of secondary agricultural residues and wood (buckwheat husk, rice husk, sunflower husk, sawdust) are shown. It was determined that optimal technological conditions for low-temperature pyrolysis processes depend on character of the feedstock and moister content in the feedstock. Temperature and pressure pulsing were found to be most important parameters that influence gas quality and yield during pyrolysis process and optimized through developing of mathematical equations describing the process.

10

Authors: Ma Shibang, Xue Dangqin, Wang Xu, Xu Yang

A rapid and non-destructive method based on hyperspectral scattering technique for determination of beef freshness (i.e.TVB-N) was studied in this study. Hyperspectral images of 60 beef samples stored at 4oC for 1-18 days were acquired using a VIS/NIR hyperspectral imaging system in the wavelength range of 400-1100 nm, and the scattering profiles of every wavelength were fitted to a Lorentzian distribution function to give three parameters a (asymptotic value), b (peak value) and c (full width at b/2). The single parameters (a, b or c) or their combined parameters (a+b/c or (b-a)/c) were used to develop least square-support vector machine (LS-SVM) models for prediction of beef freshness. The performance of a LS-SVM model developed using (b-a)/c was the best among all the tested models, showing Rc=0.91, Rp=0.86, SEC=5.83 mg/100 g and SEP=5.21 mg/100 g. A genetic algorithm was used to optimize the parameter (b-a)/c for developing a GA-LS-SVM model, which performed best showing Rc=0.97, Rp=0.96, SEC=3.38 mg/100 g and SEP=3.85 mg/100 g. This study provided a new non-destructive method based on a hyperspectral imaging technique combined with a genetic algorithm for rapid prediction of beef freshness.

6

Authors: Kozelko Y., Usenko M.

The advantages and disadvantages of different designs of potato-planter apparatus are analyzed. A new design of the conveyor potato-planter apparatus with pinning devices is presented. The performances of potato-planters with this apparatus are defined, namely deviation from straightness of planted rows and deviation from the specified row width depending on the angle of slope and soil moisture

6

Authors: Hevko Iv.B., Dychun A.Y., Lyashuk O.L., Martsenko, Gypka A.B.

In this article the results of theoretical research of power parameters while forming the deflected outer contour of acrew workpiece are analysed in this article. The design of disk digger for cleaning the disks’ working surfaces isworked out. The advances of Г-shaped auger cleanersare substantiated. The power and kinematic computationof the suggested auger cleaners of disk digger of rootcrops is carried out.

8

Authors: Klendii M.B. , Klendii O.M.

A holistic analytical model of a concave disk, which is arranged in a three-dimensional coordinate system with a given direction of unit motion along OY-axis, has been developed. It includes the design parameters of a disk and the depth of soil tillage. An interrelation between an incidence angle and a roll angle of a disk under a set value of a back angle at field surface level has been determined.

8

Authors: Ivan Gh.

The researches regarding the threshing process made by tangential threshing system of conventional harvester combines had as result the obtaining of mathematical models, based on experimental data, expressed through functions that partially define this process. Moreover, for the threshing systems with multiple rotors, the mathematical modelling of threshing process made by them is more difficult. This paper presents a mathematical model of the threshing process made by the threshing system with multiple rotors of the Romanian combine C110ATM. The mathematical model was based on the experimental data gathered by INMA Bucharest in 2001.

8

Authors: Cardei P., Muraru V., Sfiru R., Muraru C., Ticu T.

This paper shows the role of numerical simulation of physical processes in the environmental awareness and education, emphasizing the right choice of its complexity depending on the level of depth at which should or can be done the exposure. The authors insist on the important role incumbent on incremental simulation (based on mathematical models as simple as possible) in environmental awareness and even in higher education field. The jump to complex simulators can be done only after knowing (which means to know a model and a simulator, that we will try to explain in the paper) the basic models, and the use of complex simulation is effective only within specialist teams including at least 2 -3 or more related fields. These views are supported in the paper with simulators and their use in practical case of pollution of a river simulation.

10

Authors: Zhou Shanshan, Liu Wenzhao, Lin Wen

Less and varied soil-water supply is the main limiting factor for crop production in the Loess Plateau of China. A field study on dryland spring maize was conducted to investigate the effects of plastic film mulching practice on maize growth, yield, water use efficiency (WUE), soil water storages (SWS) and the ratio of transpiration to evapotranspiration (T/ET) on the Changwu Tableland of the Loess Plateau in 2013. The T characteristics of maize were measured using the sap flow method. Results showed that plastic film mulching treatment had a seedling emergence rate of 98.1%, which was significantly higher than the 80.2% of the non-mulching treatment. Maize plants reached every growth stage earlier and the whole growth period was shortened by 14 days under plastic film mulching. Soil water storage was markedly higher in plastic mulching field than in non-mulching field before July. However, at reproductive stages soil water content within the 40-150 cm profile was lower under plastic film mulching because of relatively enhancement of root water absorption. The daily mean ET under plastic mulching was lower than that under non-mulching, whereas the daily mean T was the opposite. The T/ET of maize was 68.1% under non-mulching and 85.5% under plastic mulching from July to September. Under the same LAI, the T/ET of plastic mulcingh was greater than that under non-mulching conditions. The plastic mulching decreased ET but increased WUE by 89.8%. It was concluded that plastic mulching is beneficial for increasing available water and improving the yield of maize on the Loess Plateau.

10

Authors: Hu Jun, LI Hailiang, Song Yujie, Zhang Haibo, Zhang Zhongxuan, Khokan Kumer Sarker

In order to solve the problem consisting in the large amount of energy consuming of stubble-breaking cultivating machines, according to the current cultivation mode in the northeast China and the conservation tillage agriculture technical requirements, a self-driven stubble-breaking combined cultivating machine that can work with big-power tractors has been designed. Also, there were designed the transmission system, cutting stumbles device and self-driven wheel on the basis of calculating the size and analyzing the track of the moving parts; the speed range of stubble cutter shaft is 904~1365rad/min. Experiment results showed that the machine’s cutting stubbles rate is 92.30%, mashing clods rate is 95.03%, saved fuel consumption is about 25.3~33.8%, function and technology meet the requirements of corn no-till seeding of ridge culture area in northeast China. The results of the study have a great significance in reducing the agricultural equipment energy consumption, providing reference for the study of the corresponding high efficiency and energy saving of equipment.

6

Authors: Veringă D., Vintilă M., Popa L., Ştefan V., Petcu A.S.

The paper presents the Golden Delicious apples experimental researches, that aimed to emphasize apples behaviour at mechanical static or quasi-static compression stress and mechanical and rheological characteristics of fruits correlated to deficiencies determined (contusions, form distorsion), in order to anticipate their conduct in different practical situations.

6

Authors: Sokil M.B., Lyashuk O.L., Dovbush А.Р.

The developed technique makes possible to investigate the impact on oscillations of flexible elements of drive systems and transportation of nonlinear forces, the speed of longitudinal movement and perturbations of boundary conditions. Based on the obtained results it is proved that even for the linear analogue system the slowly time-dependent variable of the distance between the flexible elements (SE) contact points and the pulleys causes the change of the basic parameters of the waves. The limits of applying the wave theory of motion in the case of nonlinear oscillations of flexible elements of drive systems under slowly varying boundary conditions are expanded. The basic computations to analyze the main parameters of the dynamic process depending on motion speed of flexible element, tension force, and the ratio describing the motion principle of the contact point of flexible element and the pulley, are made.

8

Authors: Shvedyk M.

In the article the studies of crop losses causes during harvest are presented. It is established that a significant cause of grain loss is a non-simultaneous ripening in the wheat. Thus, during reel bats impacts on stalks, the largest and most valuable grains that ripen earliest are knocked out of the wheat and fall to the ground. It is established that these losses are significant and irreversible. The current technical condition of combine harvesters cannot eliminate these losses. To eliminate these losses, a new design of pneumatic collector has been proposed in the article. The principle of its work is based on the vacuum created. Due to the vacuum, the grains that were knocked out from the wheat by reel bats are sucked and sent into the cyclone.

8

Authors: Hevko Iv.B., Lyashuk O.L., Leshchuk R.Y., Rogatinska L.R., Melnychuk A.L.

Method of calculation of radius of bending for the flexible screw sectional conveyer was presented. Analytical dependencies for finding maximal turning radius in order to provide the reliable operation of the mechanism were defined. The stand construction for investigation of the angle of twist of the sectional operating members was developed. The effect of different construction parameters (section length, diameter) on their operating life characteristics as well as the comparative testing of different types screw operating elements (SOЕ) samples, were found. The technique of testing the working bodies of flexible screw conveyor sections for manufacturability of a construction, which provides a minimum bend radius of track transportation, was presented.

8

Authors: Yue Hongwei, Cai Ken, Lin Hanhui, Chen Zhihui, Zeng Zhaofeng

With the wide application of machine-vision technology in detecting agricultural plant diseases and insect pests in the field, this paper proposed an innovative approach for performing automatic segmentation of rice planthopper images. First, to weaken background interference, the Otsu approach was adopted to accomplish the preliminary segmentation. Then, a steerable filter was employed to improve the segmentation results of the feet and tentacles. Finally, by adding priori gray-level information, our proposed method improved the approximation capability of level-set-based evolution curves to targets. Results indicated that the approach adopted in this paper could clearly segment the contour of rice planthoppers.

10

Authors: Tverdokhlib I.V., Spirin A.V.

The article describes the technological process of operation of the improved disc grating apparatus aimed to grate seed of legume grasses and presents the results of analytical studies of its performance.

10

Authors: Wenhua Jia, Chenbo Yin, Binghui Jia , Guo Li, Dasheng Zhu, Song Zhang

To cope with the increasingly severe working environment confronting agricultural load tractors, load tractor design must consider the comprehensive influences of noise immunity, control precision, and power loss, among others, of hydraulic systems. A SY235 load tractor and a dual-spool multi-way valve-based prototype were applied as research objects in this research. The antisymmetric data processing function of AMESIM software was employed to update and replenish point data, while a cubic interpolation method was adopted to process the data. In addition, the displacement characteristics, inlet and outlet pressures, and energy consumption of each cylinder in the hydraulic systems of both load tractors equipped respectively with the dual-spool multi-way valve and single-spool multi-way valve were investigated. Meanwhile, a single action experiment was performed on the booms, bucket rods, and buckets of the two load tractors. A comparison of the real test with the simulation model demonstrated that the cylinder controlled by the dual-spool valve exhibited small pressure and power consumption and quick displacement response. Therefore, the cylinders controlled by the dual-spool multi-way valve system had quicker pressure response, smaller pressure and overshoot, and superior overall manipulability. Finally, retraction and external swinging experiments of the buckets were performed on the dual-spool experimental prototype. Experimental results demonstrated that the dual-spool multi-way valve system exhibited faster displacement response and more superior overall performance compared with the single-spool control system. The simulation model combined with the real vehicle experiment is of great significance to the further study of the static and dynamic characteristics and energy-saving performance of the dual-spool agricultural load tractor.