压力容器的常规设计法与疲劳设计法的分析比较

Compar of Two Methods about Usual Design and Fatigue Design of Low Cycle Pressure Vessel

压力容器常规设计法采用静载荷、高安全系数的设计方法， 在工程应用中较简单方便。实际上， 压力容器大多数是受变载荷作用， 材料本身的缺陷， 以及结构的不连续， 按疲劳设计更符合工程实际。

It is a safer method to use dead load and higher safe factor in pressure vessels of conventional design.Fatigue design is more corresponding with real condition because loads on pressure vessels are variable and material defects exist and stuctures are discontinued.