Volume 37 Issue 6
Jun.  2022
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Article Navigation >  Journal of Aerospace Power  > 2022  >  37(6): 1273-1283
DENG Wangqian, MO Rong, CHEN Kai, FENG Xin, XIA Huateng, SUN Huibin, CHANG Zhiyong. Prediction of rotor blade tip assembly clearance based on measured data for aero-engine[J]. Journal of Aerospace Power, 2022, 37(6): 1273-1283. doi: 10.13224/j.cnki.jasp.20210255
Citation: DENG Wangqian, MO Rong, CHEN Kai, FENG Xin, XIA Huateng, SUN Huibin, CHANG Zhiyong. Prediction of rotor blade tip assembly clearance based on measured data for aero-engine[J]. Journal of Aerospace Power, 2022, 37(6): 1273-1283. doi: 10.13224/j.cnki.jasp.20210255
shu

Prediction of rotor blade tip assembly clearance based on measured data for aero-engine

doi: 10.13224/j.cnki.jasp.20210255
  • 1.

    Key Laboratory of High Performance Manufacturing for Aeroengine，Ministry of Industry and Information Technology，Northwestern Polytechnical University，Xi'an 710072，China

  • 2.

    South Industry Company Limited，Aero Engine Corporation of China，Zhuzhou Hunan 412002，China

  • Received Date: 2021-05-21
  • Publish Date: 2022-06-28
    Abstract
  • Taking the multi-stage rotor and stator assembly process as the research object，and based on the spatial geometric transformation theory and the shape and position tolerance theory，a multi-stage rotor blade tip clearance prediction method was proposed.Specifically，the rotor and stator system was divided into three subsystems：rotor，stator and support.The sub-models of assembly deviation were established for each subsystem.The coordinates of each submodel were unified.The measured deviation data of fitting surface were taken as the input to calculate the rotor blade tip coordinates and casing coordinates at the same axial position，so as to calculate the rotor blade tip clearance.The test results showed that the prediction model could accurately predict the rotor blade tip clearance，and the maximum relative error of prediction was 11%，thus providing a reference for the assembly quality analysis.

     

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