外压容器设计的解析算法。
本文以真空操作塔为例，辅助计算机程序以完成外压容器的机械设计。
This article takes the vacuum column equipment for an example to do the external pressed vessel machinery design by using of computer programs.
真空结晶器属于外压容器，在使用过程中，经常因刚度不足而导致失效，使容器失去了原来的形状，从而影响生产的正常进行。
In the using process, no enough stiffness of vacuum crystallizer led to failure, so it lost the original shape and had a great influence on the normal control of production.
应用可靠性设计方法，对钢制外压圆筒形容器压力试验进行了研究，定量分析试验压力与影响因素之间的关系。
The test of external pressure is studied for steel-walled pressure cylinder by using reliability method. The relation of external pressure test and influencing factor is analyzed.
结果发现，单纯增加壳体厚度既不能有效提高容器抗外压失稳能力，又会使设备制造成本明显提高；
Results show that increasing the thickness of the vessel only cannot effectively increase its anti-instability and on the opposite, the total weight will increase substantially.
结果发现，单纯增加壳体厚度既不能有效提高容器抗外压失稳能力，又会使设备制造成本明显提高；
Results show that increasing the thickness of the vessel only cannot effectively increase its anti-instability and on the opposite, the total weight will increase substantially.
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