压缩机零部件静强度的可靠性设计可以从两个方面进行。第一,根据事先给定的可靠度要求,计算零部件的有关尺寸或应力;第二,根据已有的压缩机零部件校核其可靠性。 在具体的设计计算中,如果已知强度r和应力S为的分布参数μr、μs和σi,σs,可将其代入式（13）求出可靠性安全指标β,然后由表3或标准正态分布积分表查得或由式（15）算 The reliability of the static strength of compressor components can be designed in two ways. First, according to the predetermined reliability requirements, calculate the relevant parts size or stress; second, according to the existing compressor parts to check its reliability. In the specific design and calculation, if we know the distribution parameters μr, μs and σi, σs of the strength r and the stress S, we can substitute them into the formula (13) to find the reliability safety index β, and then from Table 3 or standard positive State distribution score check or check by (15)