大涵道比风扇设计技术发展趋势
Development trend of high bypass ratio turbofans design technology
Received date: 2016-11-18
Revised date: 2017-03-25
Online published: 2017-04-17
陈云永 , 杨小贺 , 卫飞飞 . 大涵道比风扇设计技术发展趋势[J]. 航空学报, 2017 , 38(9) : 520953 -520953 . DOI: 10.7527/S1000-6893.2017.620953
The fan is one of the important components of civil turbofan engines. Many changes have taken place in the fan design, supporting the upgrading of civil engines. The development history and current situation are reviewed, and then the design features and parameters are summarized. The evolution, the analysis of influencing factors of evolution and the development trend of fan blade number, tangential velocity of fan tip, blade profile design, noise reduction design and material technic are introduced emphatically.
Key words： fan; blade number; tangential velocity; blade profile; noise; material; development trend
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