利用 CFD-DEM 方法优化基于獾爪的水田仿生开沟器的土壤阻力和扰动

IF 7.7 1区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Computers and Electronics in Agriculture Pub Date : 2024-10-20 DOI:10.1016/j.compag.2024.109549

Zhenyu Tang , Zhiwei Zeng , Shuanglong Wu , Dengbin Fu , Jihan He , Yinghu Cai , Ying Chen , Hao Gong , Long Qi

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引用次数: 0

摘要

水田施肥需要使用高性能的土壤开沟器。仿生设计方法已被认为是一种有效的方法，可获得土壤参与工具的预期效果。本研究利用这种方法设计了一种用于水田施肥的仿生开沟器。仿生开沟器是根据北美獾爪的主要物理特征设计的，獾爪的拟合曲线放大了八倍。开发了一个水田土壤-开沟器相互作用模型，以评估不同设计方案的性能，这些方案具有不同的曲率半径（R）和宽度（Wo）组合。模拟监测和分析了不同设计方案的开沟器性能（包括土壤阻力、土壤扰动特性和完成土壤回填的时间）。结果表明，当 R 和 Wo 的组合分别为 25 毫米和 30 毫米时，所设计的仿生开沟器性能最佳。为了验证土壤-开沟器相互作用模型和优化开沟器的性能，分别在田间和实验室条件下进行了测力实验和土壤扰动测量实验。验证结果表明，实验与模拟之间的水平土壤阻力和垂直土壤阻力的相对误差分别为 16.64 % 和 13.9 %，土壤扰动宽度的相对误差为 4.62 %，土壤回填高度的相对误差为 11.64 %。这些发现为提高水田施肥开沟器的工作效率和优化设计提供了理论依据，从而有助于提高水稻种植的农业生产率。

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Optimizing soil resistance and disturbance of bionic furrow opener for paddy field based on badger claw using the CFD-DEM method

Paddy field fertilizer banding requires the use of high-performance soil furrow openers. The bionic design method has been identified as an effective approach to obtain desired results of a soil-engaging tool. This study utilized this approach in designing a bionic furrow opener for fertilization in paddy fields. The bionic furrow opener was designed based on the main physical characteristics of the North American badger claws, with the fitted curve of the badger claw enlarged eight times. A paddy field soil-opener interaction model was developed to evaluate the performance of different design alternatives with various combinations of curvature radii (R) and width (W_o). The opener performance (including soil resistance, soil disturbance characteristics, and time for completing soil backfilling) of the different design alternatives was monitored in simulations and analyzed. Results showed that the designed bionic furrow opener achieved the best performance with a combination of R and W_o being 25 mm and 30 mm, respectively. Force measurement experiments and soil disturbance measurement experiments were conducted in field and laboratory conditions, respectively to validate the soil-opener interaction model and the performance of optimized opener. The validation results showed relative errors of 16.64 % and 13.9 % for horizontal soil resistance force and vertical soil resistance respectively, 4.62 % for soil disturbance width, and 11.64 % for soil backfilling height between the experiment and simulation. These findings provide a theoretical foundation to enhance working efficiency and optimized design of furrow openers for fertilizer application in paddy fields, thereby contributing to improved agricultural productivity in rice cultivation.

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来源期刊

Computers and Electronics in Agriculture 工程技术-计算机：跨学科应用

CiteScore

15.30

自引率

14.50%

发文量

800

审稿时长

62 days

期刊介绍： Computers and Electronics in Agriculture provides international coverage of advancements in computer hardware, software, electronic instrumentation, and control systems applied to agricultural challenges. Encompassing agronomy, horticulture, forestry, aquaculture, and animal farming, the journal publishes original papers, reviews, and applications notes. It explores the use of computers and electronics in plant or animal agricultural production, covering topics like agricultural soils, water, pests, controlled environments, and waste. The scope extends to on-farm post-harvest operations and relevant technologies, including artificial intelligence, sensors, machine vision, robotics, networking, and simulation modeling. Its companion journal, Smart Agricultural Technology, continues the focus on smart applications in production agriculture.