大型压力锅结构-热耦合有限元分析  

Finite element analysis of large pressure cooker on structure-thermal coupling

作　　者：伍璇[1] 刘玉德[1] 绳以健[2] 杨雅瑜 

机构地区：[1]北京工商大学材料与机械工程学院,北京100048 [2]总后军需装备研究所,北京100010

出　　处：《机械》2016年第5期1-4,17,共5页Machinery

基　　金："十二五"国家科技支撑计划项目(2011BAD23B02);北京市教委科研计划面上项目(KM20111001008)

摘　　要：大型压力锅由于工作时锅内温度和压力都较高,分析其应力的分布情况时,必须考虑热和结构应力的双重作用。针对食堂及行军使用的旋合式大型压力锅,采用ANSYS有限元分析软件对其进行应力应变分析并对设计进行优化改进。结果显示,压力锅结构设计满足强度要求,并建议在大型压力锅锅体的设计中,应尽量减少突兀、复杂的形状,避免直角、尖角的出现,降低因应力集中带来的安全隐患。Temperature and pressure of the pot were high, when a large pressure cooker worked, to analyze the distribution of stress, the dual role of thermal and structural stresses must be considered. The screw type pressure cooker used in canteen and march was analysed by ANSYS finite element analysis software for its stress-strain analysis and the structure of screw type pressure cooker was optimized. The results showed that the strength requirement can be meet in the structural design of the pressure cookers and it recommended that the pressure cooker should minimize embossments and complex shapes, avoid the emergence of right angles and sharp comers, reduce the potential safety hazards due to stress concentration in the design of large pressure cooker.

关 键 词：大型压力锅 结构-热耦合 有限元 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]