椭圆封头大开孔补强有限元分析及试验研究  

FEM analysis and experimental research on large opening ellipsoidal head

作　　者：赵宁[1] 董金善[1] 杨云雨[1] 

机构地区：[1]南京工业大学机械与动力工程学院,江苏南京211800

出　　处：《食品与机械》2016年第4期103-105,206,共4页Food and Machinery

摘　　要：进行标准椭圆封头大开孔平齐接管结构的三维有限元模型计算,分析应力分布规律,给出了标准椭圆封头大开孔平齐接管结构的分析法补强设计方法。通过等效应力系数计算,实现分析法补强设计。对标准椭圆封头大开孔平齐接管结构进行了试验应力分析,通过对试验结果和本研究分析法理论计算结果的对比,两者误差不超过10%,符合工程设计要求,验证了本研究标准椭圆封头大开孔补强分析法计算的正确性。Three-dimensional finite element models of standard ellipsoidal heads with large opening nozzle structure are built for calculation,and the stress distribution is analyzed.An analysis reinforcement method of standard ellipsoidal heads with large opening is proposed,which can be realized though equivalent stress coefficient computation.Experimental stress analysis on typical structure with large opening is conducted by resistance strain measurement.The experimental results show good agreement with finite element calculations,relative error being less than 10% which meets the requirements of engineering design.Then the accuracy of analysis reinforcement method of standard ellipsoidal heads with large opening given in this paper is verified.

关 键 词：椭圆封头 大开孔 有限元法 分析法 试验研究 

分 类 号：TS203[轻工技术与工程—食品科学]