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The article examines the implementation of the obtained data approbation of the aviation parts digitization by reverse engineering by determining the permissible deviations in the geometric dimensions of the part, which are made according to its scan or digital model using additive technologies. It was found that the actual geometric accuracy of the manufactured surface of an aircraft part differs from the nominal surface, which in the case of conventional reverse engineering is specified by a digital model of the part, and in the case of sustainable reverse engineering – by a description of the part. When there are no instructions on the permissible deviations of the form and location of the surfaces, it is suggested that deviations limited by the tolerance field to the measured size are used. It was determined that when approving the obtained geometry (digital mock-up or portrait) by reverse engineering, the main factors are the minimization of the use of material and time for trial samples that are proportionally reduced in size, as well as the existence of a fleet of necessary equipment – 3D printers and 3D scanners. The scientific novelty of the obtained results is in the development of the technology of prototyping the complex-profile and convex-concave aircraft parts of any size by reverse engineering via testing the obtained geometry on samples of proportionally reduced sizes, where the tolerance fields for the nominal sizes of the reduced sample and the manufactured part are pre-defined.

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Analysis of Modern Approaches to Approbation of Aircraft Parts Geometric Data Digitization by Reverse Engineering

  • 会议论文

  • 发表日期：

    2025年

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  • Kateryna Maiorova,
  • Ihor Lysochenko,
  • Oleksandr Skyba,
  • Artem Suslov,
  • Viktor Antonyuk

摘要

The article examines the implementation of the obtained data approbation of the aviation parts digitization by reverse engineering by determining the permissible deviations in the geometric dimensions of the part, which are made according to its scan or digital model using additive technologies. It was found that the actual geometric accuracy of the manufactured surface of an aircraft part differs from the nominal surface, which in the case of conventional reverse engineering is specified by a digital model of the part, and in the case of sustainable reverse engineering – by a description of the part. When there are no instructions on the permissible deviations of the form and location of the surfaces, it is suggested that deviations limited by the tolerance field to the measured size are used. It was determined that when approving the obtained geometry (digital mock-up or portrait) by reverse engineering, the main factors are the minimization of the use of material and time for trial samples that are proportionally reduced in size, as well as the existence of a fleet of necessary equipment – 3D printers and 3D scanners. The scientific novelty of the obtained results is in the development of the technology of prototyping the complex-profile and convex-concave aircraft parts of any size by reverse engineering via testing the obtained geometry on samples of proportionally reduced sizes, where the tolerance fields for the nominal sizes of the reduced sample and the manufactured part are pre-defined.