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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2017, Vol. 38 ›› Issue (9): 520953-520953.doi: 10.7527/S1000-6893.2017.620953

• Special Column of Internal Flow and Heat Transfer Technology Development in Aero-engine • Previous Articles     Next Articles

Development trend of high bypass ratio turbofans design technology

CHEN Yunyong, YANG Xiaohe, WEI Feifei   

  1. AECC Commercial Aircraft Engine Co., Ltd., Shanghai 200241, China
  • Received:2016-11-18 Revised:2017-03-25 Online:2017-09-15 Published:2017-04-17

Abstract:

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

CLC Number: