Finite Element Simulations and Experimental Analysis for Efficient Mugwort Harvesting

IF 4.5 2区农林科学 Q1 AGRONOMY

Agriculture-Basel Pub Date : 2024-10-24 DOI:10.3390/agriculture14111875

Siqi Wang, Daode Zhang, Xinyu Hu, Lu Rui

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引用次数: 1

Abstract

When mugwort is mechanically harvested, problems such as a low efficiency and high crushing rate seriously affect the quality of mugwort and restrict the development of the mugwort industry. In order to improve the efficiency of mugwort harvesting and reduce the crushing rate, the finite element method simulation and experiment are combined to study the optimal harvesting method of mugwort. Firstly, the parameters of the components of mugwort, such as the mugwort culm, mugwort stalk, and mugwort leaf, were investigated by tensile and three-point bending methods to determine the values of density, the modulus of elasticity, and Poisson’s ratio, and to establish the material mechanics model of mugwort. Secondly, harvesting of mugwort was simulated through the established three-dimensional model of mugwort, combined with its material mechanics model and using display dynamics. Finally, by conducting harvesting tests on mugwort, the harvesting force of different harvesting directions and harvesting positions were measured to reveal the harvesting mechanism of mugwort and to determine the optimal harvesting direction and position of mugwort leaves. The experimental results showed that the harvesting force was lowest when the harvesting angle was 0° or 90°, and the leaves were least damaged when the harvesting position was close to the stalk. The results of the study can provide data support for the study of the mechanical properties of mugwort and provide a theoretical basis for the research and development of high-efficiency and low-loss mugwort harvesting machinery and the optimisation of harvesting methods.

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艾蒿高效采收的有限元模拟与实验分析

在艾蒿机械采收时，效率低、破碎率高等问题严重影响了艾蒿的品质，制约了艾蒿产业的发展。为了提高艾草采收效率，降低艾草破碎率，将有限元法模拟与实验相结合，研究艾草的最佳采收方法。首先，采用拉伸法和三点弯曲法对艾草的组成部分艾草茎、艾草茎、艾草叶进行参数研究，确定密度、弹性模量和泊松比，建立艾草的材料力学模型；其次，通过建立艾草的三维模型，结合艾草的材料力学模型，运用显示动力学方法对艾草的收获过程进行模拟。最后，通过对艾蒿进行采收试验，测量不同采收方向和采收位置的采收力，揭示艾蒿的采收机理，确定艾蒿叶片的最佳采收方向和采收位置。试验结果表明，采穗角度为0°和90°时，采穗力最小，采穗位置靠近茎秆时叶片损伤最小。研究结果可为艾草力学特性的研究提供数据支持，为研发高效低损耗的艾草采收机械和优化采收方式提供理论依据。

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来源期刊

Agriculture-Basel Agricultural and Biological Sciences-Food Science

CiteScore

4.90

自引率

13.90%

发文量

1793

审稿时长

11 weeks

期刊介绍： Agriculture (ISSN 2077-0472) is an international and cross-disciplinary scholarly and scientific open access journal on the science of cultivating the soil, growing, harvesting crops, and raising livestock. We will aim to look at production, processing, marketing and use of foods, fibers, plants and animals. The journal Agriculturewill publish reviews, regular research papers, communications and short notes, and there is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental and/or methodical details must be provided for research articles.