椭圆封头几何形状讨论及展开面积计算  

Discussion on the geometry and calculation of the unwrapped area of ellipsoidal heads

作　　者：高炳军[1] 王洪海[1] 

机构地区：[1]河北工业大学,天津300130

出　　处：《石油化工设备》1999年第5期25-28,共4页Petro-Chemical Equipment

摘　　要：根据回转壳体的基本概念，推导了椭圆封头的近似椭圆壳部分的中面母线方程，据此推导计算了椭圆封头的展开面积及展开圆直径，并根据椭圆壳几何形状推导的结果与经验公式所得结果进行了比较，给出了有关图表及计算程序，可供制造单位参考使用。Based on the basic concept of the revolving shell, the equation of the middle surface generatrix of the approximate ellipsoid portion of the ellipsoidal head is derived, the unwrapped area and the unwrapped diameter of the ellipsoidal head are calculated, the result is compared with that of derived from the real ellipsoid and that of calculated from the empirical equation, relative chart and code are given out, which could be used by manufactures for reference.

关 键 词：椭圆封头 几何形状 展开面积 计算 压力容器 

分 类 号：TH49[机械工程—机械制造及自动化] TQ051.302[化学工程]