车用涡轮增压器可展直纹面叶片设计方法研究  

Research on Developable Ruling Blade Surface Design Method for Vehicle Turbocharger Impeller

作　　者：张虹[1] 马朝臣[1] 

机构地区：[1]北京理工大学机械与车辆工程学院,北京100081

出　　处：《内燃机学报》2005年第1期58-62,共5页Transactions of Csice

摘　　要：针对车用涡轮增压器压气机叶轮,研究利用可展直纹面构造叶片曲面方程的方法。首先通过对B啨zier直纹面叶片设计特点和加工特点的分析,提出利用可展直纹面构造叶片曲面的概念,推导可展直纹面定义叶片表面的条件,在此基础上,进一步提出构造偏移可展直纹面来形成叶片的吸力面和压力面的新方法,推导出偏移可展直纹面叶片的曲面方程,实现可展直纹面叶片的设计。The method to construct the blade surface of developable impeller of vehicle turbocharger is investigated. Firstly, based on the analysis of design and machining characters of Bézier ruling blade, the concept for constructing blade surfaces by using developable ruling surface is proposed, and the formula of developable ruling surface is derived. Based on these considerations, a new approach to construct offset developable ruling surface to form the suction and pressure surfaces of blades is provided, thus realizing the design of developable impeller blade.

关 键 词：车用涡轮增压器 压气机叶轮 可展直纹面叶片 

分 类 号：TK421.8[动力工程及工程热物理—动力机械及工程]