首页 > 过刊浏览>2025年第44卷第1期 >288-298. DOI:10.13300/j.cnki.hnlkxb.2025.01.031
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基于NSGA-Ⅱ与AHP气吸式微型薯排种器排种过程仿真优化与试验
作者:
作者单位:

1.华中农业大学工学院，武汉 430070;2.农业农村部马铃薯生物学与生物技术重点实验室，武汉 430070;3.农业农村部长江中下游农业装备重点实验室，武汉 430070

作者简介:

付锦，E-mail：1446703645@qq.com

通讯作者:

段宏兵，E-mail：duanhb@mail.hzau.edu.cn

中图分类号:

S223.2

基金项目:

国家马铃薯现代农业产业技术体系项目（CARS-09-P08）；湖北省农机装备补短板核心技术应用攻关项目（HBSNYT202215）；湖北省现代农业产业技术体系项目（HBHZD-ZB-2020-005-08）


Simulation optimization and experiment of seed sowing process using air-suction micro potato seeder based on NSGA-Ⅱ and AHP
Author:
Affiliation:

1.College of Engineering，Huazhong Agricultural University，Wuhan 430070，China;2.Key Laboratory of Potato Biology and Biotechnology， Ministry of Agriculture and Rural Affairs， Wuhan 430070， China;3.Key Laboratory of Agricultural Equipment in the Mid-Lower Reaches of the Yangtze River， Ministry of Agriculture and Rural Development，Wuhan 430070，China

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    摘要:

    针对现有气吸式微型薯排种器作业时所需负压高、功耗大、漏播严重等问题，依据微型薯的曲率半径，设计环槽型排种盘，增加微型薯贴附排种盘的有效接触面积，从而提高合格指数。运用EDEM与Fluent软件构建气吸式微型薯排种器耦合仿真模型，并以运行参数（真空度、排种盘转速）、结构参数（吸孔直径、吸孔数）为影响因素，以合格指数、漏播指数、重播指数、功率消耗为性能指标设计二次回归正交旋转组合试验。通过耦合仿真获得各影响因素对排种器性能指标的影响结果集，对结果集采用非支配排序算法（NSGA-Ⅱ）进行多目标求解，获取Pareto最优解集；通过层次分析法（AHP）对最优解集进行权重分配后，得到最优的排种器结构与运行参数。结果显示：最优参数值为负压值-5 060 Pa、排种盘转速35 r/min、吸孔数10个、吸孔直径10 mm时，排种器的合格指数为94.18%，漏播指数为3.14%，重播指数为2.68%，功率消耗为11.2 kW。台架试验结果显示：台架试验结果与仿真优化后结果基本保持一致，相对误差为0.97%。

    Abstract:

    A ring groove-type disk of seeder was designed based on the radius of curvature of the micro potato seeds to solve the problems of the operation of existing air-suction micro potato seeder requiring high negative pressure， high power consumption and serious leakage. The effective contact area of the micro potato seed adhering to the disk was increased to improve the qualification index of the air-suction micro potato seeder. A coupled simulation model of an air-suction micro potato seeder was constructed with EDEM and Fluent software. A quadratic regression orthogonal rotation combination experiment was designed with operating parameters including the vacuum degree， rotation speed of seeder disk and structural parameters including the diameter of suction hole， number of suction holes of the seeder as influencing factors， and the qualification index， leakage index， reseeding index， and power consumption as indexes of performance. The result set of the impact of various influencing factors on the indexes of performance of the seeder was obtained through coupling simulation. The non-dominated sorting algorithm （NSGA-Ⅱ） for multi-objective optimization of the result set was used to obtain optimal solution set of Pareto. The optimal structure parameters and operating parameters of seeder were obtained after assigning weights to the optimal solution set using analytic hierarchy process （AHP）. The results showed that the optimal parameters were negative pressure value of －5 060 Pa， rotation speed of seeder disk of 35 r/min， number of suction holes of 10， and diameter of suction hole of 10 mm， with the qualification index of the seeder of 94.18%， the leakage index of 3.14%， the reseeding index of 2.68%， and the power consumption of 11.2 kW. The results of bench test showed that the simulation results optimized were basically consistent with the bench test， with a relative error of 0.97%. It is indicated that the combination of multi-objective optimization algorithm and hierarchical analysis process for weight allocation is reasonable and feasible for the performance optimization of air-suction micro potato seeder..

    图1 气吸式微型薯排种器结构爆炸图Fig.1 Exploded view of the structure of air suction micro potato seed metering
    图2 排种器工作区域划分Fig.2 Dividing the working area of the seed metering
    图3 直孔型排种盘Fig.3 Straight hole type seed disc
    图4 环槽型排种盘Fig.4 Circular fluted seed discs
    图5 微型薯种子模型图Fig.5 Micro potato seed model
    图6 排种器网格划分模型Fig.6 Seed metering mesh model
    图7 排种器耦合仿真过程Fig.7 Simulation process of seed metering coupling
    图8 不同影响因素对排种性能的影响Fig.8 Effect of different factors on seed metering performance
    图9 Pareto最优解集Fig.9 Pareto optimal solution set
    图10 排种器层次分析模型Fig.10 AHP analysis model for seed metering
    图11 排种器性能台架试验Fig.11 Eed metering performance bench test
    表 1 离散元仿真参数Table 1 Discrete element simulation parameters
    表 2 二次正交旋转组合试验因素编码Table 2 Experimental factor code
    表 3 二次正交旋转组合试验方案与结果Table 3 Pilot programme and test results
    表 4 合格指数与漏播指数方差分析Table 4 Analysis of variance of qualification index and leakage index
    表 5 重播指数与功率消耗方差分析结果Table 5 Results of analysis of variance of double index and power consumption
    表 6 判断矩阵Table 6 Judgement matrix
    表 7 层次分析结果Table 7 AHP analysis results
    表 8 仿真优化与台架试验结果Table 8 Comparison of simulation optimization results with bench test results
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付锦,段宏兵,韩明兴,蔡兴奎,董汝宁.基于NSGA-Ⅱ与AHP气吸式微型薯排种器排种过程仿真优化与试验[J].华中农业大学学报,2025,44(1):288-298

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  • 收稿日期:2024-01-15
  • 在线发布日期: 2025-03-03
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