Design and parameters optimization of root cutting tool based on garlic numerical simulation model

Chen, Jianneng; Zhou, Binsong; Jia, Jiangming; Chen, Zhiwei; Yu, Chennan; Cai, Shuanglei

doi:10.1111/jfpe.13753

Cited by 9 publications

(5 citation statements)

References 17 publications

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“…The mature garlic plant consists of leaves, shoots, stems, bulbs, and roots, among which the bulbs are the main edible parts of the garlic plant, known as "garlic heads" in our daily life [5][6]. At present, China's garlic combine harvester is still in the prototype testing stage and there is no high-performance garlic combine harvester that can complete the operational processes of garlic shoveling and plucking, root and stem removal, cleaning and bulb collection [7][8][9][10]. Although there are some advanced garlic combined harvesting equipment in developed countries, the bale type and stem cutting type garlic combine harvester are also dominant.…”

Section: Introductionmentioning

confidence: 99%

Optimization and experimental study of parameters of root and stem removal device of garlic combine harvester

Yang

et al. 2023

Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023)

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In order to solve the operational quality problems such as high injury rate, low root removal rate and long residual stems in China's garlic combine harvest, and to improve the performance of root and stem removal operation for garlic combine harvester, a garlic root and stem removal device was developed. A three-factor, three-level orthogonal test was conducted on key parameters affecting the quality of root and stem removal, such as conveying speed, clamping height and clamping angle, through bench tests. The results of the bench test showed that the main and secondary factors affecting the quality of root and stem removal were conveying speed, clamping height and clamping angle, and the better parameter combination was conveying speed of 0.8 m/s, clamping height of 135 mm and clamping angle of 65°. In order to assess the field harvesting quality of the root and stem removal device, a garlic combine harvester was designed, and a prototype was completed for trial production. Through field harvest test, the operational quality of the root and stem removal device was examined in focus. The field test results showed that the device met the quality requirements for garlic combine harvesters.

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Section: Introductionmentioning

confidence: 99%

Optimization and experimental study of parameters of root and stem removal device of garlic combine harvester

Yang

et al. 2023

Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023)

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“…Currently, scholars at home and abroad have done a lot of studies on mechanical properties, cutting principles and key components of crop roots [ 9 , 10 ]. Chen et al [ 11 ] proposed a novel linkage occlusion-cutting mechanism and studied the influence of tool parameters on root cutting force to find the optimal cutting force of garlic root. Zhang et al [ 12 ] designed a bionic root cutter and conducted a test on the cooperation between the root cutter and the ditching device.…”

Section: Introductionmentioning

confidence: 99%

Design and experiment of a shovel-tooth removal end-effector for abnormal plants in hybrid rape breeding based on MBD-DEM coupling

Xing,

Ding,

Xue

et al. 2023

PLoS ONE

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In view of the problem that removing abnormal plants in breeding rape requires a large amount of labor and is inefficient, combined with the planting requirements of breeding rape, a shovel-tooth end-effector was designed, and a shovel-tooth removal test bench was built. A simulation model based on MBD (Multibody Dynamics)-DEM (Discrete Element Method) coupling was constructed. Then we conducted a Box-Behnken test with four factors and three levels. Taking the angle of soil penetration, speed of soil penetration, depth of soil penetration and speed of shovel-tooth gathering as the test factors, the soil penetration force and shovel-tooth gathering force as the test indicators. The mathematical regression model between test indicators and test factor was established. After optimizing the parameters of the model, the best combination of parameters with low soil penetration force and low shovel-tooth gathering force was obtained: angle of soil penetration of 84°, speed of soil penetration of 9 cm/s, depth of soil penetration of 8cm, and speed of shovel-tooth gathering of 6 cm/s. The simulation model was validated by field experiments. The average soil penetration force and average shovel-tooth gathering force of the three groups of pull-out tests were 34.8 N and 763.0 N, respectively. The removal rates were 96%, 92%, and 94%, all greater than 90%, indicating that the removal effect of the shovel-tooth end-effector was good, and the parameters were reasonably designed. The results can serve as reference for the design of rape abnormal plants removal device and the operation of MBD-DEM coupling simulation end-effector.

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Section: Introductionmentioning

confidence: 99%

“…The generalized force and sensor functions were used to monitor and control the shedding of coffee grains, and the dynamic simulation of the coffee threshing process was achieved. In addition, Chen et al (2021) constructed finite element models of a garlic bulb and cutter based on ANSYS/ LS-DYNA. Though the simulation analysis of root-disc cutting, they investigated the effects of the structural parameters of the cutter on the root-disc cutting force, and obtained the optimal structural parameters of the cutter.…”

Section: Introductionmentioning

confidence: 99%

Kinematic analysis and process optimization of root-cutting systems in field harvesting of garlic based on computer simulation technology

Yu,

Yang,

et al. 2023

Front. Plant Sci.

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IntroductionRoot cutting is an important process in garlic field harvesting but is the weakest link in the full mechanization of garlic production. To improve the current situation of technological backwardness and poor operational quality of mechanized garlic root-cutting in the main garlic-producing regions of China, this study combined the physical characteristics and agronomic requirements of garlic plants, and proposed an innovative floating root-cutting technology for garlic combine harvesters that enables the top alignment of bulb, adaptive profiling floating of cutter, and embedded cutting of roots.MethodsThrough the kinematic analysis of the floating cutting process, the coordinate equations of the initial contact point of the bulb, the mathematical model of the floating displacement of the cutting component. Using computer simulation techniques, the dynamic simulation study of the floating cutting process was carried out in the rigid-flexible coupling numerical simulation model of root-cutting mechanism and garlic plant. The influence law of garlic conveying speed, extension spring preload force and stiffness on the floating displacement of the cutting component and the angular velocity of swing arm reset and its formation causes were analyzed by a single-factor simulation test. The key operating parameters of the root-cutting mechanism were optimized through the computerized virtual orthogonal test and fuzzy comprehensive evaluation.Results and discussionThe significance of the factors affecting the floating cutting performance decreased in the following order: extension spring preload force, garlic conveying speed and extension spring stiffness. The optimal parameter combination of the root cutting mechanism obtained from the optimization were as follow: extension spring preload force was 16 N, garlic conveying speed was 0.8 m/s, and extension spring stiffness was 215 N/m. Tests conducted with the optimal parameter combination yielded a root excision rate of 92.72%, which meets the requirements of Chinese garlic field harvesting quality. This study provides computer simulation optimization methods for the optimal design of the root-cutting mechanism, and also provides technical and equipment support for the full mechanization of garlic production in China.

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Design and parameters optimization of root cutting tool based on garlic numerical simulation model

Cited by 9 publications

References 17 publications

Optimization and experimental study of parameters of root and stem removal device of garlic combine harvester

Optimization and experimental study of parameters of root and stem removal device of garlic combine harvester

Design and experiment of a shovel-tooth removal end-effector for abnormal plants in hybrid rape breeding based on MBD-DEM coupling

Kinematic analysis and process optimization of root-cutting systems in field harvesting of garlic based on computer simulation technology

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