Volume 35 Issue 6
Jun.  2020
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ZHANG Haiyang, WANG Xiangping, DU Shaohui. Design for anti-bird impact of aero-engine fan blade[J]. Journal of Aerospace Power, 2020, 35(6): 1157-1168. doi: 10.13224/j.cnki.jasp.2020.06.005
Citation: ZHANG Haiyang, WANG Xiangping, DU Shaohui. Design for anti-bird impact of aero-engine fan blade[J]. Journal of Aerospace Power, 2020, 35(6): 1157-1168. doi: 10.13224/j.cnki.jasp.2020.06.005
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Design for anti-bird impact of aero-engine fan blade

doi: 10.13224/j.cnki.jasp.2020.06.005
  • 1.

    Shenyang Engine Research Institute,Aero Engine Corporation of China,Shenyang 110015,China

  • 2.

    Key Laboratory of Impact Dynamics on Aero Engine,Liaoning Province,Shenyang Engine Research Institute,Aero Engine Corporation of China,Shenyang 110015,China

  • 3.

    Joint Laboratory of Impact Dynamics on Aero Engine,Shenyang Engine Research Institute,Aero Engine Corporation of China,Shenyang 110015,China

  • Received Date: 2019-12-12
  • Publish Date: 2020-06-28
    Abstract
  • The first stage fan rotor blade is a key component of the engine against bird impact, and the leading edge of the blade is a key part of the anti-bird impact design, by investigating the structural characteristics of the engine and the damage characteristics after bird impact. Therefore, a theoretical analysis method of fan blade bird impact was established to study the relationship among impact conditions, structural parameters and bird impact process, and damage mode as well as damage degree. Results show that the leading edge angle is the key structural parameter of anti-bird impact. The leading edge angle determined the impact process, damage mode and damage degree, when the bird impact conditions were determined. A model with leading edge characteristics was designed and the influence rule of leading edge angle was verified using the method of display dynamics simulation analysis. Based on the results, an improved design of the actual fan blade was carried out. The deformation of improved blade was reduced by a minimum of 33% after being hit by a bird, and the anti-bird impact ability of the improved blade was obviously improved.

     

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