在机械制造中,往往会遇到各种类型的几何形体,特别是在压缩机设计与制造中更为多见,需要计算出每个儿何形体的体积和重量。在一些书籍上很难找到相应的计算公式,甚至根本找不到。因此,只好估算。大家知道就某一特异几何形体的估算误差可达30％,以致更高。在压缩机材料定额计算时,就某一些几何形体因无相应计算公式只能进行估算,而在压缩机设计中余隙容积的计算和复算,一些几何 In machinery manufacturing, often encounter various types of geometry, especially in the design and manufacture of compressors is more common, you need to calculate the size and weight of each child shape. In some books it is difficult to find the corresponding formula, or simply can not find. Therefore, had to estimate. We all know that the estimation error for a specific geometry can reach 30%, resulting in higher. In the compressor material quota calculation, some geometry because there is no corresponding formula can only be estimated, and in the compressor design clearance volume calculation and re-calculation, some geometry