FINITE ELEMENT SIMULATION OF INTER-PLANT WEED CONTROL DEVICE IN PADDY FIELD

文献类型： 外文期刊

第一作者： Jin, Wenting

作者： Jin, Wenting;Zhuang, Tengfei;Lu, Qi;Jin, Wenting;Zhuansun, Yuqi;LI, Wenlong;Ma, Liuxuan

作者机构：

关键词： weeding machinery; inverted V-shaped component; finite element method; dynamic behavior

期刊名称：INMATEH-AGRICULTURAL ENGINEERING （ 影响因子：0.7； 五年影响因子：0.6 ）

ISSN： 2068-4215

年卷期： 2023 年 69 卷 1 期

页码：

收录情况： SCI

摘要： Mechanical weeding in paddy fields is a green and environmentally friendly way to control weeds, which has the advantages of reducing the amount of pesticides and improving the physical structure of the soil. This paper briefly describes the composition and relevant parameters of the mechanical weeding environment in rice fields. Using Creo 5.0, HyperMesh 2017, and LS-PrePost and LS-DYNA software to jointly simulate the interaction process between inverted V-shaped inter-plant weeding component and the soil in the paddy field, the single-point ALE multi-material unit algorithm is used to couple the soil and water with multiple substances, and realize the material movement between the soil and the water layer. Using the penalty function method, a fluid-solid coupling finite element modelled on the interaction between inter-plant weeding components and soil-water was established. The dynamic behavior of the interactions shows that the coupling stress increases and then decreases periodically, and the teeth of the spring cross the soil with a "bending moon (fish scale)" scratch, which can effectively avoid rice seedlings and reduce the injury rate.

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