水产学报2024，Vol.48Issue(12)：155-164,10.DOI:10.11964/jfc.20240314435
基于JKR模型的饲料调质器特性与仿真分析
Simulation analysis of feed conditioner characteristics based on the JKR model
摘要
Abstract
An EDEM simulation analysis of Ctenopharyngodon idella feed pellets based on the Hertz-Mindlin with JKR model was carried out to study the movement and binding conditions of C.idella feed pellets during the conditioning process and optimize feed conditioning conditions.Firstly,a wet sticky model of feed pellets was established using the discrete element theory.Secondly,the impact of conditioning shaft rotational speed and impeller blade installation angle on feed conditioning effect was analyzed by establishing a simulation control group of two factors,conditioning shaft rotational speed and impeller blade installation angle.Then,according to the feed conditioning characteristics requirements,the optimal combination of shaft rotational speed and impeller blade installation angle was determined.Finally,the conclusion was reached through theoretical calculation and simulation analysis:when the conditioning machine's shaft rotational speed was 250 r/min and impeller blade installation angle was 30°,respectively.The feed pellets were not easily attached to the chamber wall,the materi-als could mix evenly,and the best conditioning effect could be obtained.The results indicated that the condition-ing effect of feed conditioner was closely associated with the blade installation angle and the rotational speed of the shaft.This study can offer a theoretical foundation and guidance for feed manufacturers in optimizing and improving conditioning effects.关键词
JKR模型/饲料/转轴转速/桨叶安装角度/调质器/离散元Key words
JKR model/feed/shaft speed/blade installation angle/conditioner/discrete element分类
农业科技引用本文复制引用
王斌,杨文浩,庄狄,姜伟忠,张俊,汪敏捷..基于JKR模型的饲料调质器特性与仿真分析[J].水产学报,2024,48(12):155-164,10.基金项目
国家重点研发计划"海洋农业与淡水渔业科技创新"专项(2024YFD2402000) （2024YFD2402000）
上海市水产动物良种创制与绿色养殖协同创新中心项目(2021 科技02-12) National Key Research and Development Program of China"Marine Agriculture and Freshwa-ter Fisheries Technological Innovation"Special Project(2024YFD2402000) （2021 科技02-12）
the Program for Shanghai Collaborat-ive Innovation Center for Cultivating Elite Breeds and Green-culture of Aquaculture Animals(2021-KJ-02-12) （2021-KJ-02-12）
