基于有限元法的膨化机模盘的强度评价  

Strength evaluation of puffed dish mold based on finite element method

作　　者：孙丰涛[1] 冯超[1] 

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044

出　　处：《计算机辅助工程》2013年第A01期290-293,共4页Computer Aided Engineering

基　　金：中央高校基本科研业务费专项资金(M13JB00110)

摘　　要：随着现代人生活水平的不断提高,越来越多的人们开始饲养宠物,宠物饲料的需求日益增长.某全球知名宠物饲料生产公司的饲料成型模具出现开裂现象,导致宠物饲料生产品质下降,生产中断,进而影响生产效率,加大生产的耗费.针对该公司目前使用的饲料膨化机磨盘进行机械强度分析.通过计算机有限元法计算机仿真软件Marc,模拟仿真膨化物料挤压进模盘时的工况,计算分析,并校核模板的强度,指出现有的模盘的结构中存在的强度失效的薄弱部位.With the continuous improvement of living conditions, more and more people begin to raise pets. The demand for pet food is increasing day after day. The production of pet food is made by injection food mold. The mold of one famous pet food company often appears cracking phenomenon, which leads to quality decline, production interruption and productivity decrease. A finite element model of the injection mold is built according to its practical load and geometry shape using Marc. The mechanical strength of the injection mold is calculated and analyzed. The results show the possible weak positions of the current structure of the mold.

关 键 词：模具 开裂 强度分析 有限元 MARC 

分 类 号：S817.1[农业科学—畜牧学] TB115.1[农业科学—畜牧兽医]