1+3/2无导叶对转涡轮设计特点分析  

Analysis of Design Characteristics for 1+3/2 Vaneless Counter-Rotating Turbine

作　　者：陈云[1] 胡松岩[1] 王雷[1] 

机构地区：[1]中航工业沈阳发动机设计研究所,沈阳110015

出　　处：《航空发动机》2011年第4期20-23,62,共5页Aeroengine

基　　金：国防装备部预先研究项目(61901060103)资助

摘　　要：无导叶对转涡轮的结构形式是减轻发动机质量、提高发动机推重比的有效技术途径之一。以现有1+2对转涡轮为平台,在保持总体性能参数不变的前提下,进行了1+3/2无导叶对转涡轮初步设计,并对无导叶对转涡轮的设计特点进行了分析。研究结果表明,1+3/2无导叶对转涡轮设计中必须以合适的高压涡轮为基础;其低压涡轮特性与常规涡轮的基本一致,第1级低压涡轮转子叶片在各工作状态下效率水平均较高。The technology of vaneless counter-rotating turbine is one of effective approachs to improve the weight and thrust-weight ratio of engine. The preliminaly design of 1 ＋3/2 vaneless counter-rotating turbine were completed basing on the 1 ＋2 counterrotating turbine and keeping the parameter invariable, and the characteristics of vaneless counter-rotating turbine were investigated. The results show 1＋3/2 vaneless eounter-rotating turbine design must base on an appropriate high pressure turbine, and its low pressure turbine characterastics is agree with the normal two stage low pressure turbine, and the efficiency of the first stage is higher at various conditions.

关 键 词：无导叶对转涡轮 涡轮特性 出功比 航空发动机 

分 类 号：V235[航空宇航科学与技术—航空宇航推进理论与工程]