二次计算法和有限元法计算叶轮过盈量的分析和比较  

Analyzing and Comparing Methods of Calculating Impeller Interference Based on Secondary Calculation Method and Finite Element Method

作　　者：常超[1] 牟洁洋 袁浩[1] 饶杰[1] 王鹏亮 于跃平[1] 

机构地区：[1]合肥通用机械研究院压缩机技术国家重点实验室合肥压缩机技术省级实验室 [2]苏州欧拉工程技术有限公司

出　　处：《化工机械》2016年第1期51-54,共4页Chemical Engineering & Machinery

摘　　要：高速离心风机叶轮与主轴之间大多采用过盈配合,过盈量的计算是设计时的难点。介绍了二次计算法计算过盈量的整体思路,并对一台离心风机分别使用二次计算法和有限元数值分析法(有限元法)计算其叶轮过盈量。计算结果表明:二次计算法偏保守,得到的过盈量偏大。The high-speed centrifugal fan usually adopts an interference fit between its impeller and shaft and calculating its magnitude of interference becomes difficult. Through introducing interference calculation through a secondary method,applying both secondary method and finite element method to respectively calculate the impeller＇s interference of a centrifugal fan was proposed. The calculation result indicates that this secondary method is conservative and it brings about a larger magnitude of interference.

关 键 词：离心风机 过盈量 二次计算法 有限元法 

分 类 号：TQ051.8[化学工程]