农业装备与车辆工程2025，Vol.63Issue(7)：11-17,7.DOI:10.3969/j.issn.1673-3142.2025.07.002
基于离散元的食用菌培养基物料参数测定
Determination of material parameters of edible fungi culture medium based on discrete elements
摘要
Abstract
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,medium-medium 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.关键词
食用菌/培养基/离散元/参数测定Key words
edible fungi/culture medium/discrete elements/parameter determination分类
农业科技引用本文复制引用
张玉浩,刘晓童,陈月锋,刘霞,王风云,何青海..基于离散元的食用菌培养基物料参数测定[J].农业装备与车辆工程,2025,63(7):11-17,7.基金项目
国家重点研发计划"食用菌智能化生产装备创制与应用"(2024YFD2000700) （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) （重大科技创新工程）
