从结构强度的角度分析,压缩机高压气缸的重要特点就是其直接承受脉动的气体力的作用以及由于结构的复杂性而造成很大的应力集中现象,这直接影响着高压气缸的可靠性和容限寿命。本课题在考虑上述特点的情况下,应用先进的电子计算机技术,编制了气缸动力及静力分析的三维有限元程序。应用此程序,分析了缸体内的应力分布和变化规律,并进行了实验验证。通过分析,可以预期,高压气缸的容限寿命存在一个与气缸结构参数有关的最佳压力比值。 From the perspective of structural strength, an important feature of a compressor high-pressure cylinder is its direct effect of pulsating gas force and large stress concentration due to the complexity of the structure, which directly affects the reliability and capacity of the high-pressure cylinder Limit life. The subject in considering the above characteristics, the application of advanced computer technology, the preparation of the cylinder dynamics and static analysis of the three-dimensional finite element program. Using this program, the stress distribution and variation in the cylinder were analyzed and verified by experiments. Through analysis, it is expected that there will be an optimum pressure ratio related to the structural parameters of the cylinder for the tolerance life of the high-pressure cylinder.