摘要
针对上海海洋大学研制的精准投饲机,运用CFX仿真分析结合单因素试验和正交试验,研究了投饲机送料管筒的倾角和长度以及饲料在管筒入口速度对测量精度的影响。单因素试验发现精准投饲机称重装置测得的饲料质量流量受送料管筒的倾角α、筒长L以及管筒入口处的饲料速度v0影响;以此为依据设计的正交试验得到精准投饲机送料管筒的最佳参数应为:送料管筒倾角为38°,筒长为410 mm,管筒入口处的饲料速度为0. 32 m/s,在这样的参数下能获得最好的测量精度;由极差分析得到各结构参数对测量精准度影响的主次顺序,送料管筒入口处的饲料速度是影响测量精度的最主要因素,送料管筒安装倾角对精度的影响次之,送料管筒筒长对精度的影响最小。
In view of precision feeding machine developed by Shanghai Ocean University,with CFX simulation analysis,combined with single factor experiments and orthogonal experiments,the influence of measurement accuracy of the feeder feeding tube cone angle,length and feed tube in tube access port velocity is studied.The single factor test found that the feed mass flow that is measured by the weight device is determined by the dip angleαof the feeding tube,the tube length L and the feed speed v0at the access port of the feeding tube;the best parameter of accurate feeder feeding machine based on the design of orthogonal test should be as followed.The feeding tube dig angle is 38°.The length is 410 mm.The tube access port velocity is 0.32 m/s.The best measurement accuracy under these parameters is got;the primary and secondary order of measurement accuracy is obtained by range analysis.The feed speedat the tube access port is the main factor affected the accuracy of measurement,and dip angle is the second,tube length is last.
作者
张丽珍
杨朦朦
胡庆松
姜波
ZHANG Lizhen;YANG Mengmeng;HU Qingsong;JIANG Bo(College of Engineering Science and Technology,Shanghai Ocean University,Shanghai 201306,China)
出处
《上海海洋大学学报》
CAS
CSCD
北大核心
2018年第5期703-709,共7页
Journal of Shanghai Ocean University
基金
上海市虾类产业技术体系建设项目[沪农科产字(2014)第5号]
上海市科技创新行动计划(14111103900)
关键词
投饲机
精度
正交试验
ANSYS
CFX
仿真分析
feeding machine
accuracy
Orthogonal experiment
ANSYS CFX
simulation analysis
