圆平盖中心大开孔的极限载荷和结构的分析研究  

Analysis and Research of the Limit Load and Structure of the Large Central Openings of the Round Flat Covers

作　　者：管文华 方德明[2] 张康达[2] 

机构地区：[1]宁波市特种设备检验检测中心 [2]浙江工业大学

出　　处：《化工机械》2007年第4期197-200,共4页Chemical Engineering & Machinery

摘　　要：利用有限元法对大开孔平盖进行了极限载荷分析,比较了平盖与筒体连接处采用的锥形段过渡与圆角过渡两种形式。结果表明,二者均能有效地降低平盖与筒体连接处的边缘应力。设计过渡段时,δ2/δ0为3.0、锥度为1∶3能够更有效地降低平盖的边缘应力。A limit load analysis was conducted using the finite element method for the round fiat covers with large openings, the cone transmission and round angle transmission used at the connection of the fiat cover and the cylinder were compared. The result shows that both of them can efficiently reduce the edge stress at the connection of the fiat cover and cylinder. The edge stress of the fiat cover can be more efficiently reduced when δ2/δ3 is 3.0 and taper is 1 ： 3 in design of the transition section.

关 键 词：大开孔平盖 极限载荷 边缘应力 

分 类 号：TQ053.2[化学工程]