Volume 36 Issue 5
May  2021
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Article Navigation >  Journal of Aerospace Power  > 2021  >  36(5): 916-922
YU Lei, GENG Jingyan, LI Baiyang, WANG Weiguo, CAO Jiajian, WU Hailong, ZHOU Qing. Failure simulation and test verification of cone under impact load[J]. Journal of Aerospace Power, 2021, 36(5): 916-922. doi: 10.13224/j.cnki.jasp.2021.05.003
Citation: YU Lei, GENG Jingyan, LI Baiyang, WANG Weiguo, CAO Jiajian, WU Hailong, ZHOU Qing. Failure simulation and test verification of cone under impact load[J]. Journal of Aerospace Power, 2021, 36(5): 916-922. doi: 10.13224/j.cnki.jasp.2021.05.003
shu

Failure simulation and test verification of cone under impact load

doi: 10.13224/j.cnki.jasp.2021.05.003
  • 1.

    Commercial Aircraft Engine Company Limited,Aero Engine Corporation of China,Shanghai 200241,China

  • 2.

    Suzhou Automotive Research Institute, ,Tsinghua University,Suzhou Jiangsu 215134,China

  • Received Date: 2020-02-12
  • Publish Date: 2021-05-28
    Abstract
  • According to the load characteristics of aeroengine supporting cone structure, the failure mechanism of cone under the impact load of fan blade out was studied.By using the explicit dynamic finite element simulation method, transient analysis on the dynamic failure process of the cone structure under the impact load was carried out. The drop impact test of the cone was carried out, and the test results were compared with the analysis results. It was discovered that the failure of the cone thinning position under impact load was shear failure. The explicit dynamic finite element simulation method provided a feasible method for accurately simulating the failure of the cone failure under impact load, the error between the peak acceleration obtained by analysis and the test result was less than 5%. The GISSMO (generalized incremental stress state dependent damage model) can be used to accurately predict the fracture time and position at the cone thinning position.The analysis method and failure model verified by the test can be used to determine the failure design parameters of the cone under the impact load of fan blade out, so as to improve the accuracy of the load reducion design of the cone structure.

     

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