高压气缸是活塞式压缩机的重要部件之一。可是应用于化工等工业系统中的高压压缩机,其高压气缸开裂损坏事故时有发生。为了探索整体式高压气缸发生开裂的力学特性,本文采用三维六面体和五面体单元对缸体进行有限元分析,找到了应力分布状况和危险区域,并得出了相应的结论。 High-pressure cylinder piston compressor is one of the important components. However, high-pressure compressors, which are used in industrial systems such as chemical engineering, have occasionally occurred during cracking of high-pressure cylinders. In order to explore the mechanical properties of integral high-pressure cylinder cracking, this paper uses the three-dimensional hexahedron and pentahedron elements of the cylinder finite element analysis to find the stress distribution and hazardous areas, and draw the corresponding conclusions.