摘要
为提升食用菌挖瓶作业效率,采用物理试验与仿真试验相结合的方法,对培养基的离散元参数进行测定与优化。首先通过各项物理试验确定培养基的离散元参数范围,随后利用颗粒建模软件搭建仿真模型,开展颗粒堆积角的显著性试验,确定显著性因素分别为:泊松比、培养基-培养基碰撞恢复系数、培养基-培养基静摩擦系数和培养基-培养基动摩擦系数;然后通过最陡爬坡试验进一步缩小参数取值范围,并进行响应面实验,建立回归模型,利用方差分析确定各因素对堆积角的影响程度,得出最优参数组合为:泊松比0.29,培养基-培养基碰撞恢复系数0.28,培养基-培养基静摩擦系数0.44、动摩擦系数0.14;最后将仿真堆积体与物理堆积体的休止角进行对比,二者无显著差异,证明该参数组合可作为食用菌挖瓶作业过程中的离散元仿真模型参数。
To improve the efficiency of mushroom bottle-digging operations,the discrete element parameters of the culture medium were determined and optimized using a combination of physical and simulation tests.First,the range of discrete element parameters for the culture medium was determined through various physical tests.Subsequently,a simulation model was constructed using particle modeling software,and a significance test of the particle angle of repose was conducted to identify the significant factors as follows:Poisson's ratio,medium-medium collision restitution coefficient,medium-medium static friction coefficient,and medium-medium dynamic friction coefficient.Next,the steepest ascent method was employed to further narrow the parameter ranges,followed by a response surface experiment to establish a regression model.Analysis of variance was used to determine the influence of each factor on the angle of repose,yielding the optimal parameter combination:poisson's ratio of 0.29,medium-medium collision restitution coefficient of 0.28,mediummedium static friction coefficient of 0.44,and dynamic friction coefficient of 0.14.Finally,the angle of repose of the simulated packing body was compared with that of the physical stacked body,and no significant difference was found,confirming that this parameter combination could be used as the discrete element simulation model parameters for the mushroom bottle-digging process.
作者
张玉浩
刘晓童
陈月锋
刘霞
王风云
何青海
ZHANG Yuhao;LIU Xiaotong;CHEN Yuefeng;LIU Xia;WANG Fengyun;HE Qinghai(Shandong Academy of Agricultural Machinery Sciences,Jinan 250100,Shandong,China;Tianrun Intelligent Control System Integration Co.,Ltd.,Weihai 264200,Shandong,China;Zhejiang Branch of Chinese Academy of Agricultural Mechanization Sciences Group Co.,Ltd.,Shaoxing 312000,Zhejiang,China;Shandong Nongfa Intelligent Biotechnology Group Co.,Ltd.,Dongying 257000,Shandong,China;Institute of Agricultural Information and Economics,Shandong Academy of Agricultural Sciences,Jinan 250100,Shandong,China)
出处
《农业装备与车辆工程》
2025年第7期11-17,共7页
Agricultural Equipment & Vehicle Engineering
基金
国家重点研发计划“食用菌智能化生产装备创制与应用”(2024YFD2000700)
山东省重点研发计划(重大科技创新工程)“食用菌智慧工厂化生产关键技术研发与产业化”(2022CXGC010610)。
关键词
食用菌
培养基
离散元
参数测定
edible fungi
culture medium
discrete elements
parameter determination
作者简介
张玉浩(1996-),男,助理工程师,研究方向:食用菌智能化生产装备。E-mail:1132666414@qq.com;通信作者:何青海(1986-),男,高级工程师,研究方向:设施装备与智慧节水。E-mail:heqinghai1986@126.com。
