INMATEH-Agricultural Engineering最新文献_第2页

DEVELOPMENT OF ADVANCED METHODOLOGY OF EXPERIMENTAL RESEARCH ON OSCILLATION PROCESSES INTENSITY FOR MACHINE-TRACTOR UNITS 机耕机组振动过程强度实验研究先进方法的发展

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INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI: 10.35633/inmateh-70-34

V. Bulgakov, S. Ivanovs, Volodymyr Kuvachоv, Lucretia Popa, Igor Sivak, O. Trokhaniak, Y. Ihnatiev

{"title":"DEVELOPMENT OF ADVANCED METHODOLOGY OF EXPERIMENTAL RESEARCH ON OSCILLATION PROCESSES INTENSITY FOR MACHINE-TRACTOR UNITS","authors":"V. Bulgakov, S. Ivanovs, Volodymyr Kuvachоv, Lucretia Popa, Igor Sivak, O. Trokhaniak, Y. Ihnatiev","doi":"10.35633/inmateh-70-34","DOIUrl":"https://doi.org/10.35633/inmateh-70-34","url":null,"abstract":"An important operational indicator of agricultural machine-tractor units is the smoothness of movement, which significantly affects the traction and dynamic performance of their work, productivity, agronomic qualities of the operation, traffic safety, durability and efficiency. As a rule, it is evaluated by the influence of oscillations (translational vertical, transverse, angular longitudinal, etc.), on these indicators, as well as on the physical condition and health of operators who control these units in real production conditions. This article presents an improved method and results of experimental assessment of the smoothness of the movement of the modular agricultural unit, which moves in the footsteps of a constant technological track. Studies of the smoothness of the modular unit showed that the graphs of normalized correlation functions of vertical oscillations of the modular agricultural tool developed by us in its motion in the wake of a constant techno-logical track is characterized by a function containing along with random components harmonic, which are expressed by attenuating periodic oscillations. The range of frequencies of oscillations of the frame of the agricultural tool is concentrated in the range from 0 tо 20 s−1, which is consistent with the frequency range 0…0.3 s−1 in which the variances of oscillations of inequalities of a profile of traces of a technological track are concentrated. Studies have confirmed the effectiveness of the method of estimating the intensity of vertical oscillations of the agricultural unit measuring and recording system based on a tablet computer with Android operating system with built-in accelerometer sensors and Accelerometer Meter application. The developed technique of mathematical modelling and experimental determination of vertical oscillations of the machine-tractor unit can be used in the study of the dynamics of other agricultural machines and units.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42868533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CFD ANALYSIS OF THE SETTLING PROCESS IN A RADIAL CLARIFIER 径向澄清器沉降过程的CFD分析

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INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI: 10.35633/inmateh-70-15

Gabriel Alexandru Constantin, B. Zabava, G. Voicu, G. Moiceanu, I. Istrate, M. Nițu

引用次数: 0

EXPERIMENTAL RESEARCH ON ENERGY CONSUMPTION IN THE LAMINATION AND DRAWING OF DOUGH 面团叠拉能耗的实验研究

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INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI: 10.35633/inmateh-70-14

M. Munteanu, G. Voicu, Gabriel Alexandru Constantin, E. Ştefan, P. Tudor, M. Nițu

引用次数: 0

DESIGN AND EXPERIMENT OF A SINGLE-ROW SMALL GRAIN PRECISION SEEDER 单排小粒精密播种机的设计与试验

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INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI: 10.35633/inmateh-70-12

J. Sun, Liqin Yang, Baohui Xu, Yuming Guo

{"title":"DESIGN AND EXPERIMENT OF A SINGLE-ROW SMALL GRAIN PRECISION SEEDER","authors":"J. Sun, Liqin Yang, Baohui Xu, Yuming Guo","doi":"10.35633/inmateh-70-12","DOIUrl":"https://doi.org/10.35633/inmateh-70-12","url":null,"abstract":"In order to meet the precision seeding of small seeds including millet and broomcorn millet in hilly and mountainous areas, a single-row small grain precision seeder was developed. Static seeding test and seeding test were carried out on the seeder. In this paper, the key parts such as socket wheel-ring groove seed metering device, transmission system and tensioning wheel are designed. The working parts such as\u0000arrow shovel furrow opener, plastic seed tube and hollow cast iron press wheel were selected to achieve seed metering. The seed metering wheel has double-row of holes. The results of static seeding test showed that rotational speed had a significant effect on the sowing quantity of millet and broomcorn millet (P < 0.001). The higher the rotational speed, the greater the sowing quantity. With the increase of rotational speed of seed metering wheel, the damage rate of millet and broomcorn millet increased. At the same rotational speed, the breakage rate of broomcorn millet is smaller than that of millet. The field sowing test showed that when the seeder is at a marching speed of about 0.5 m/s, the qualified rate of the hole spacing of millet and broomcorn millet is greater than or equal to 90%, and the qualified rate of the number of grains per hole is\u0000greater than or equal to 82%. All indicators meet the requirements of the technical conditions of single-grain (precision) seeder. The design can provide reference for the design and optimization of small grain precision seeder.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41618629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IMPROVEMENT DESIGN AND SIMULATION ANALYSIS ON CENTRIFUGAL DISC ORGANIC FERTILIZER SPREADER 离心式盘式有机肥播种机的改进设计与仿真分析

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INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI: 10.35633/inmateh-70-32

Bing Xu, Qingliang Cui, Decong Zheng

{"title":"IMPROVEMENT DESIGN AND SIMULATION ANALYSIS ON CENTRIFUGAL DISC ORGANIC FERTILIZER SPREADER","authors":"Bing Xu, Qingliang Cui, Decong Zheng","doi":"10.35633/inmateh-70-32","DOIUrl":"https://doi.org/10.35633/inmateh-70-32","url":null,"abstract":"Aiming at the poor efficiency in crushing a handful of caking organic fertilizers spraying from the traditional disc spreader, an improved disc spreader equipped with spike-tooth crushing unit was designed with the introduction of its structural composition and working principle. Also simulation experiments were carried out based on the discrete element method according to the solutions made before and after the structural improvement. Firstly, a granular organic fertilizer model was established based on the EDEM and a caking organic fertilizer bonding model was built based on the HMB (Hertz-Mindlin with bonding) contact model. Then two organic fertilizer spreading models corresponding to the solutions were respectively established, based on which simulation experiments were repeated three times on the spreading process. The analysis on the particle velocity vector diagram revealed the interaction relationship between organic fertilizers with the toothed shaft, external wall and disk, verifying the crushing mechanism of crushing unit. By calculating the total number of the bonds generated and broken in the spreading process in both of the spreading models, the average broken rate of bonds in the spreading process was separately 58.87% and 98.05% based on each solution, revealing that the improved solution outperformed the traditional solution in terms of the efficiency in crushing the caking organic fertilizers. This research will be a reference in designing the critical components or improving the overall performance of disc spreader.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48259321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RESEARCH ON PIG BODY SIZE MEASUREMENT SYSTEM BASED ON STEREO VISION 基于立体视觉的猪体尺测量系统研究

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INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI: 10.35633/inmateh-70-07

Yanli Geng, Xiaodong Yue, Yankai Ji, Yanbo Lin, Yanfang Fu, Shucai Yang

{"title":"RESEARCH ON PIG BODY SIZE MEASUREMENT SYSTEM BASED ON STEREO VISION","authors":"Yanli Geng, Xiaodong Yue, Yankai Ji, Yanbo Lin, Yanfang Fu, Shucai Yang","doi":"10.35633/inmateh-70-07","DOIUrl":"https://doi.org/10.35633/inmateh-70-07","url":null,"abstract":"Body size of pigs is an important evaluation indicator in pig breeding. The traditional method of body size measurement is usually in manual way, which requires more employees and causes stress reactions of pigs. In response to the shortcomings of the traditional methods, this paper designed a system for measuring the body size of pigs based on stereo vision. The point cloud of both the calibration object and the pig was collected using dual KinectV2 cameras. Pre-processing was conducted using filtering and random sample consensus to remove background noise from the point clouds. As there was limited overlap between the two sides of the point clouds, the rotation matrix obtained from registering the calibration object was applied to the pig point clouds. Curve fitting and slicing were then utilized to measure the pig's body dimensions, including length, width, height, and abdominal circumference. The results of the study indicated that the mean absolute percentage error (MAPE) was 2.13% for body length, 1.02% for body width, 1.05% for body height, and 2.21% for abdominal girth. These results demonstrate the high accuracy and practical production value of the system.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47422630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

OBSTACLE AVOIDANCE METHOD FOR ELECTRIC TRACTOR BASED ON IMPROVED DYNAMIC WINDOW APPROACH WITH PRIORITY OF ENERGY CONSUMPTION 基于能耗优先的改进动态窗口方法的电动拖拉机避障方法

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INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI: 10.35633/inmateh-70-30

Tianyi Huang, F. Badea, M. Xiao, Shanhu Zhao, S. Badea, C. Badea

{"title":"OBSTACLE AVOIDANCE METHOD FOR ELECTRIC TRACTOR BASED ON IMPROVED DYNAMIC WINDOW APPROACH WITH PRIORITY OF ENERGY CONSUMPTION","authors":"Tianyi Huang, F. Badea, M. Xiao, Shanhu Zhao, S. Badea, C. Badea","doi":"10.35633/inmateh-70-30","DOIUrl":"https://doi.org/10.35633/inmateh-70-30","url":null,"abstract":"In order to solve the real-time obstacle avoidance problem in electric tractor operation, an improved dynamic window approach (DWA) based on optimal energy consumption is proposed for electric tractor obstacle avoidance. Firstly, energy consumption model of tractor is established based on the transmission system of electric tractor, then energy consumption evaluation sub-function is introduced to improve the evaluation\u0000function of original DWA algorithm, and finally, the trajectory is evaluated and the optimal solution of the trajectory is determined by using new evaluation function. Based on the kinematics model of YL254ET electric tractor in Yancheng Yueda, a model predictive controller is designed. The obstacle avoidance planning and tracking control of electric tractor are simulated jointly on Simulink and CarSim simulation platform. Finally, the obstacle avoidance planning test is carried out. The simulation and experimental results show that after the algorithm improvement, the energy consumption of electric tractors is reduced, the generated path is smoother, and the lateral error is smaller.","PeriodicalId":44197,"journal":{"name":"INMATEH-Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42421042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

THE DESIGN OF JUJUBE IRRIGATION SYSTEM USING LINEAR REGRESSION ANALYSIS, BP NEURAL NETWORK AND RANDOM FOREST 采用线性回归分析、bp神经网络和随机森林等方法对红枣灌溉系统进行设计

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INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI: 10.35633/inmateh-70-16

Wenhao Dou, Sanmin Sun, Pengxiang Xu

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OPTIMIZED DESIGN AND TESTING OF A PEANUT-PICKING DEVICE WITH A LARGE FEEDING VOLUME 大进给量花生加工装置的优化设计与试验

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INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI: 10.35633/inmateh-70-39

Xu Li, Shuqi Shang, Xiaoning He, Zelong Zhao, Ning Zhang, Yaxiu Hou, Jinbiao Zhang, Dongwei Wang

引用次数: 0

GRASSLAND RAT-HOLE RECOGNITION AND CLASSIFICATION BASED ON ATTENTION METHOD AND UNMANNED AERIAL VEHICLE HYPERSPECTRAL REMOTE SENSING 基于关注法和无人机高光谱遥感的草原鼠洞识别与分类

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INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI: 10.35633/inmateh-70-17

Xiangbing Zhu, Yuge Bi, J. Du, Xinchao Gao, Eerdumutu Jin, Fei Hao

引用次数: 0