Analysis of the Mechanism and Performance Optimization of Burying Weeding with a Self-Propelled Inter Row Weeder for Paddy Field Environments

To solve the problems of poor quality mechanical weeding and no obvious plowing effect in complex paddy field environments, the burying weeding operation mode was proposed. The height and force acting on the weeds were the main factors that altered the effectiveness of burying. The structure of the...

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Autores principales:	Han Tang, Changsu Xu, Qi Wang, Wenqi Zhou, Jinfeng Wang, Yanan Xu, Jinwu Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	self-propelled paddy field weeding mechanism optimization fluid–solid coupling simulation Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/2c3995da4d5543af9542e4a61875a62a
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spelling	oai:doaj.org-article:2c3995da4d5543af9542e4a61875a62a2021-11-11T14:57:14ZAnalysis of the Mechanism and Performance Optimization of Burying Weeding with a Self-Propelled Inter Row Weeder for Paddy Field Environments10.3390/app112197982076-3417https://doaj.org/article/2c3995da4d5543af9542e4a61875a62a2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/9798https://doaj.org/toc/2076-3417To solve the problems of poor quality mechanical weeding and no obvious plowing effect in complex paddy field environments, the burying weeding operation mode was proposed. The height and force acting on the weeds were the main factors that altered the effectiveness of burying. The structure of the rake teeth weeding wheel was designed and matched with appropriate power, and the rake teeth weeding device was optimized. To verify the rationality of the designed device, the forward speed of the machine, rotating speed of the weeding wheels and weeding depth were selected as the experimental factors, and the inter row weeding rate was selected as the experimental index. A quadratic orthogonal rotation combination experiment with three factors and five levels was designed and optimized. The results showed that when the forward speed was 0.64 m/s, the rotational speed of the weeding wheel was 140 r/min, the weeding depth was 56.8 mm, the inter row weeding rate predicted by the model was 88.43%, and the inter row weeding rate was determined by a confirmatory experiment to be 87.06%, which met the weeding requirements for modern agronomy. To intuitively analyze how the soil was disturbed by the weeding wheel, the explicit dynamic analysis software LS-DYNA was used to build a fluid–solid coupling simulation model of the weeding wheel and water soil. The soil density and coupling stress were used to analyze the plowing state of paddy soil when the weeding wheel was operated. This study provides references for the design and development of paddy field weeding components and for mechanical and soil coupling simulation in paddy fields.Han TangChangsu XuQi WangWenqi ZhouJinfeng WangYanan XuJinwu WangMDPI AGarticleself-propelledpaddy field weedingmechanismoptimizationfluid–solid coupling simulationTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 9798, p 9798 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	self-propelled paddy field weeding mechanism optimization fluid–solid coupling simulation Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	self-propelled paddy field weeding mechanism optimization fluid–solid coupling simulation Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Han Tang Changsu Xu Qi Wang Wenqi Zhou Jinfeng Wang Yanan Xu Jinwu Wang Analysis of the Mechanism and Performance Optimization of Burying Weeding with a Self-Propelled Inter Row Weeder for Paddy Field Environments
description	To solve the problems of poor quality mechanical weeding and no obvious plowing effect in complex paddy field environments, the burying weeding operation mode was proposed. The height and force acting on the weeds were the main factors that altered the effectiveness of burying. The structure of the rake teeth weeding wheel was designed and matched with appropriate power, and the rake teeth weeding device was optimized. To verify the rationality of the designed device, the forward speed of the machine, rotating speed of the weeding wheels and weeding depth were selected as the experimental factors, and the inter row weeding rate was selected as the experimental index. A quadratic orthogonal rotation combination experiment with three factors and five levels was designed and optimized. The results showed that when the forward speed was 0.64 m/s, the rotational speed of the weeding wheel was 140 r/min, the weeding depth was 56.8 mm, the inter row weeding rate predicted by the model was 88.43%, and the inter row weeding rate was determined by a confirmatory experiment to be 87.06%, which met the weeding requirements for modern agronomy. To intuitively analyze how the soil was disturbed by the weeding wheel, the explicit dynamic analysis software LS-DYNA was used to build a fluid–solid coupling simulation model of the weeding wheel and water soil. The soil density and coupling stress were used to analyze the plowing state of paddy soil when the weeding wheel was operated. This study provides references for the design and development of paddy field weeding components and for mechanical and soil coupling simulation in paddy fields.
format	article
author	Han Tang Changsu Xu Qi Wang Wenqi Zhou Jinfeng Wang Yanan Xu Jinwu Wang
author_facet	Han Tang Changsu Xu Qi Wang Wenqi Zhou Jinfeng Wang Yanan Xu Jinwu Wang
author_sort	Han Tang
title	Analysis of the Mechanism and Performance Optimization of Burying Weeding with a Self-Propelled Inter Row Weeder for Paddy Field Environments
title_short	Analysis of the Mechanism and Performance Optimization of Burying Weeding with a Self-Propelled Inter Row Weeder for Paddy Field Environments
title_full	Analysis of the Mechanism and Performance Optimization of Burying Weeding with a Self-Propelled Inter Row Weeder for Paddy Field Environments
title_fullStr	Analysis of the Mechanism and Performance Optimization of Burying Weeding with a Self-Propelled Inter Row Weeder for Paddy Field Environments
title_full_unstemmed	Analysis of the Mechanism and Performance Optimization of Burying Weeding with a Self-Propelled Inter Row Weeder for Paddy Field Environments
title_sort	analysis of the mechanism and performance optimization of burying weeding with a self-propelled inter row weeder for paddy field environments
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/2c3995da4d5543af9542e4a61875a62a
work_keys_str_mv	AT hantang analysisofthemechanismandperformanceoptimizationofburyingweedingwithaselfpropelledinterrowweederforpaddyfieldenvironments AT changsuxu analysisofthemechanismandperformanceoptimizationofburyingweedingwithaselfpropelledinterrowweederforpaddyfieldenvironments AT qiwang analysisofthemechanismandperformanceoptimizationofburyingweedingwithaselfpropelledinterrowweederforpaddyfieldenvironments AT wenqizhou analysisofthemechanismandperformanceoptimizationofburyingweedingwithaselfpropelledinterrowweederforpaddyfieldenvironments AT jinfengwang analysisofthemechanismandperformanceoptimizationofburyingweedingwithaselfpropelledinterrowweederforpaddyfieldenvironments AT yananxu analysisofthemechanismandperformanceoptimizationofburyingweedingwithaselfpropelledinterrowweederforpaddyfieldenvironments AT jinwuwang analysisofthemechanismandperformanceoptimizationofburyingweedingwithaselfpropelledinterrowweederforpaddyfieldenvironments
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Analysis of the Mechanism and Performance Optimization of Burying Weeding with a Self-Propelled Inter Row Weeder for Paddy Field Environments

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