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<p>The absence of 3D digital models for purchased aero-engines presents a challenge in the intricate task of assembly coordination between the engine and aircraft. This glaring gap creates an urgent need within the aircraft design department to rapidly reconstruct the engine's geometric profile. To address this, we introduce an algorithm specifically aimed at the parametric reconstruction of aero-engine pipelines from raw scan where large portions of data may be missing. The core is pipeline completion followed by axis extraction. This strategy hinges on the innovative concept of the deep rotational symmetric point pair (DRSPP). When compared to previous techniques, our method stands out by effectively preventing issues related to the protrusion of semi-sphere or semi-ellipsoid seals at the pipeline's ends. Our solution not only demonstrates remarkable precision in addressing the eccentricity of the pipeline's axis but also eliminates the inward shrinkage that typically occurs at the endpoints of extracted pipeline axes.</p>

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Parametric Reconstruction of Aero-engine Pipeline Based on Deep Rotational Symmetric Point Pair

  • 期刊论文

  • 发表日期：

    2025年7月4日

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  • Jieqiong Yan,
  • Laishui Zhou,
  • Hong Wen,
  • Xiaoping Wang,
  • Jincheng He,
  • Yang Zhou

摘要

The absence of 3D digital models for purchased aero-engines presents a challenge in the intricate task of assembly coordination between the engine and aircraft. This glaring gap creates an urgent need within the aircraft design department to rapidly reconstruct the engine's geometric profile. To address this, we introduce an algorithm specifically aimed at the parametric reconstruction of aero-engine pipelines from raw scan where large portions of data may be missing. The core is pipeline completion followed by axis extraction. This strategy hinges on the innovative concept of the deep rotational symmetric point pair (DRSPP). When compared to previous techniques, our method stands out by effectively preventing issues related to the protrusion of semi-sphere or semi-ellipsoid seals at the pipeline's ends. Our solution not only demonstrates remarkable precision in addressing the eccentricity of the pipeline's axis but also eliminates the inward shrinkage that typically occurs at the endpoints of extracted pipeline axes.