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A model reconstruction strategy with geometric parameters adjustment function for repairing damaged blade

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Abstract

The model of the damaged blade is essential and needs to be reconstructed when repairing the blade. Due to the blade deformation, the performance of the reconstructed model may not satisfy the service requirement, which may result in the failure of repair. To obtain the reconstructed model with desired performance, the geometric parameters of the reconstructed model must be changed and tested constantly during the reconstruction process, causing the urgent demand for the reconstruction method which can adjust the geometric parameters of the reconstructed model to given values. Therefore, in this paper, a model reconstruction strategy with geometric parameters adjustment function is proposed. The strategy extracts the damaged cross-section curves (CSCs) of the blade first and then repairs them through a parametric algorithm. The parametric algorithm reconstructs the damaged CSCs through the camber line and can ensure the geometric parameters of repaired CSCs are consistent with the given values. Subsequently, the blade model with given geometric parameters is obtained by lofting repaired CSCs. Finally, an experiment is conducted to validate the strategy. The result shows that the geometric parameters of the reconstructed model are adjusted effectively to the given values. Most of the deviations between the reconstructed and scanning model in the undamaged area are less than 0.01 mm and the surface of the reconstructed model is smooth. Thus, it is concluded that the proposed strategy can reconstruct the damaged blade precise model and adjust the geometric parameters of the reconstructed model to the given values.

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Funding

The study was financially supported by the National Natural Science Foundation of China (No. 52175436) and the Industry-University-Research Cooperation Project of Aero Engine Corporation of China (No. HFZL2021CXY025-3).

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Authors and Affiliations

  1. Key Laboratory of High Performance Manufacturing for Aero Engine (Northwestern Polytechnical University), Ministry of Industry and Information Technology, Xi’an, 710072, China

    Jianing Dang, Baohai Wu & Ying Zhang

  2. Engineering Research Center of Advanced Manufacturing Technology for Aero Engine (Northwestern Polytechnical University), Ministry of Education, Xi’an, 710072, China

    Jianing Dang, Baohai Wu & Ying Zhang

  3. School of Power and Energy, Northwestern Polytechnical University, Xi’an, 710072, China

    Limin Gao

Authors
  1. Jianing Dang
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  2. Baohai Wu
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  3. Ying Zhang
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  4. Limin Gao
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Contributions

All authors contributed to the study conception and design. The first draft, the algorithm, and its C++ code were obtained by Jianing Dang. The draft was revised by Baohai Wu, Ying Zhang, and Limin Gao. All authors read and approved the final manuscript.

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Correspondence to Baohai Wu.

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Dang, J., Wu, B., Zhang, Y. et al. A model reconstruction strategy with geometric parameters adjustment function for repairing damaged blade. Int J Adv Manuf Technol 126, 973–989 (2023). https://doi.org/10.1007/s00170-023-11182-x

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  • DOI: https://doi.org/10.1007/s00170-023-11182-x

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