摘要
以某涡扇发动机为平台,采用正交叶片设计和全三维设计等技术全新设计的低压涡轮,负荷水平较原型提高10%,且设计过程中强调在整机环境中验证低压涡轮的匹配性能。试验结果表明,新设计的低压涡轮满足设计要求,在涡轮负荷水平大幅提高的情况下效率提高0.5%;在发动机整机试验中与其它部件具有良好的匹配工作性能,顺利完成了该整机平台的地面试车,发动机不加力最大状态推力增加464 daN,超过原计划增加200 daN的指标。
The design and experiment of a low-pressure turbine （LPT） is presented, which used orthogonal blade design and 3D design technique etc. Its loading level is 10 percent higher than the original LPT. The matching performance of the new LPT should be validated in the engine environment which was emphasized in the design process. The test results show that the design is successful and the efficiency of the newly de- signed LPT is 0.5 percent higher than the original one though its loading level is much higher. In the engine test the newly designed LPT well matched the other components of the engine and the ground test was ac- complished successfully. The data show that the maximum dry engine thrust increases 464 daN, exceeds the expected goal by 200 daN.
出处
《燃气涡轮试验与研究》
北大核心
2013年第2期6-11,共6页
Gas Turbine Experiment and Research
关键词
涡扇发动机
高性能低压涡轮
正交叶片设计
全三维设计
试验
turbofan engine
high performance low-pressure turbine
orthogonal blade design
3D design
experiment
