Development and Evaluation of Mechanical Harvesting of Root Crops and Its Performance Optimization DOI Open Access
Zheng Gong, Yuwan Yang

Published: May 17, 2023

Root crops grow in the soil deeply and bond with closely, which results that process of separation between root becomes most difficult during harvesting processes. In order to harvest efficiently, mechanical has become main developing trend. However, high power damage rate are still occurred when harvester gets touch roots. this paper, we review research development evaluation its performance optimization on past years. The mainly consists initial ground further adhered soil. general, soil-cutting operation sieving mechanism require draught power. And dramatic friction, impact, pressure so on, happen components soil-roots, key reasons lead damage. methods parameters, including digging shovel shape, working conditions, vibration, screening way, is more significant improving performance. But there some limitations application for crops. Future suggested focus break-up cutting soil, insight into interaction roots by different external compression loads, long-term studies verify high-efficiency low-damage performances practical application.

Language: Английский

Simulation tool for dozer data acquisition DOI
Xiangqian Zhu,

Longye Pan,

Zizheng Sun

et al.

Automation in Construction, Journal Year: 2022, Volume and Issue: 142, P. 104522 - 104522

Published: Aug. 5, 2022

Language: Английский

Citations

14

Performance Evaluation of Liquorice Harvester with Novel Oscillating Shovel-Rod Components Using the Discrete Element Method DOI Creative Commons

Lipengcheng Wan,

Yonglei Li, Chao Zhang

et al.

Agriculture, Journal Year: 2022, Volume and Issue: 12(12), P. 2015 - 2015

Published: Nov. 25, 2022

Liquorice harvesting is the key process in development of liquorice industry. For with about 400 mm growth depth, a lightweight harvester novel oscillating shovel-rod components was developed. Draft force, total torque, specific energy consumption, separation proportion, and soil structure maintenance were used to evaluate performance under varied working conditions, throw intensity torque analyzed. A DEM model developed simulate excavation soil. Three sets single-factor simulation tests one set field conducted. The results indicated that: Each 1 increase amplitude decreased draft force by 463.35 N increased consumption 35.03 Nm 4.3 kJ/m3, respectively. Hz vibration frequency 3.12 while 375.75 28.44 Nm, 0.1 m/s forwarding speed 1302.72 N, 13.26 3.82 main areas front areas, where proportion greater than 60%, completely separated at end areas. soils after had relatively minimal disturbance all layers, 0.61, well maintained. plants from passing smoothly through components, during which different layers fell sequence. This study revealed interactive relationship between soil, specifically potential maintain harvesting. new finding will assist developing harvest techniques for rhizome crops deep depth.

Language: Английский

Citations

5

Parameter Optimization and DEM Simulation of Bionic Sweep with Lower Abrasive Wear Characteristics DOI Creative Commons
Shuo Wang, Xuanting Liu, Tianjian Tong

et al.

Biomimetics, Journal Year: 2023, Volume and Issue: 8(2), P. 201 - 201

Published: May 13, 2023

High wear rates during the tillage process often result in significant financial losses and wasted farming seasons. In this paper, a bionic design was used to reduce wear. Inspired by wear-resistant animals with ribbed structures, sweep (BRS) designed combining unit conventional (CS). BRSs different parameters (width φ, height h, angle θ, interval λ) were simulated optimized using DEM RSM methods at working depth of 60 mm evaluate magnitude trends three responses: resistance (TR), number contacts between soil particles (CNSP), Archard value (AW). The results showed that protective layer could be created on surface structure abrasive Analysis variance proved factors λ had effects AW, CNSP, TR, while factor h insignificant. An optimal solution obtained desirability method, including 8.88 1.05 3.01 λ, 34.46° θ. Wear tests simulations loss effectively reduced speeds BRS. It found feasible create partial optimizing unit.

Language: Английский

Citations

2

Self-Excited-Resonance of Soil-Engaging Surface Spectrum: A New Method of Soil Cutting Resistance Reduction DOI Creative Commons
Zhijun Guo, Yiqing Qiu, Xianghai Yan

et al.

Agriculture, Journal Year: 2023, Volume and Issue: 13(6), P. 1154 - 1154

Published: May 30, 2023

In this study we explored the methods and effects of spectral resistance reduction for soil-engaging surface self-excited resonant bulldozing plates with a plane base on basis resonance effects. acquisition low-order vibration frequency f0 bin soil, centering around point f0, eight spatial geometric wave points ni surfaces three amplitudes were selected; by superimposing plane-based plates, 24 structures model samples combinatorically designed. Resistance characteristics each sample tested using an indoor soil test. Near vibrating spectrum obtain preferable inhibitory effect working resistance. At 4 mm amplitude point, achieved best effect, maximum relative rate 22.67%, desorption relevant was also good. On other hand, away from whether increased or decreased, corresponding relatively. This is in good agreement law that theoretical curve higher both sides lower. paper provides reference parameter design related product development various forced cutting tools.

Language: Английский

Citations

2

Development and Evaluation of Mechanical Harvesting of Root Crops and Its Performance Optimization DOI Open Access
Zheng Gong, Yuwan Yang

Published: May 17, 2023

Root crops grow in the soil deeply and bond with closely, which results that process of separation between root becomes most difficult during harvesting processes. In order to harvest efficiently, mechanical has become main developing trend. However, high power damage rate are still occurred when harvester gets touch roots. this paper, we review research development evaluation its performance optimization on past years. The mainly consists initial ground further adhered soil. general, soil-cutting operation sieving mechanism require draught power. And dramatic friction, impact, pressure so on, happen components soil-roots, key reasons lead damage. methods parameters, including digging shovel shape, working conditions, vibration, screening way, is more significant improving performance. But there some limitations application for crops. Future suggested focus break-up cutting soil, insight into interaction roots by different external compression loads, long-term studies verify high-efficiency low-damage performances practical application.

Language: Английский

Citations

1