粮食干燥机矩形筒仓内压力的研究  

Research on the pressure in the rectangle silo of grain dryer

作　　者：王洋[1] 吴文福[2] 周岩[1] 

机构地区：[1]吉林农业大学工程技术学院,长春市130118 [2]吉林大学生物与农业工程学院,长春市130025

出　　处：《中国农机化学报》2016年第9期104-107,118,共5页Journal of Chinese Agricultural Mechanization

基　　金：国家科技支撑计划子课题(2011BAD03B01)

摘　　要：在粮食干燥过程中,谷物的载荷分布情况是影响粮食干燥机结构设计的重要因素之一。通过实验对矩形筒仓内压力分布及变化规律进行研究,得出矩形筒仓内动静态压力随高度的变化趋势;并利用有限元软件ANSYS分析矩形仓内部及侧壁受力的变形情况。实验与仿真结果对比表明,两者具有较好的相关性,且规律一致;同时,验证仓内的压力饱和现象,并为粮食水分的在线检测奠定一定的理论基础。In grain drying process,the load distribution of the grains is one of the important factors that affect the structure of grain dryer.In this paper,the pressure distribution and change rule of the rectangular silo was studied through the experiment.It is concluded that the variation trend with height of the dynamic and static pressure in the rectangular silo.It analyzed the internal and sidewall stress deformation of the rectangular silo by finite element software ANSYS.The results of tests compared with simulation showed that both had the good correlation and the same laws.At the same time,the phenomenon of pressure saturation was verified in the silo,established the theoretical foundation for the on-line measurement of grain moisture.

关 键 词：矩形筒仓 压力饱和 有限元 仿真分析 

分 类 号：TS210.4[轻工技术与工程—粮食、油脂及植物蛋白工程]