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Information mining and mechanical analysis of new-generation aero-engine turbine discs with industrial computed laminography reverse engineering

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Chinese Journal of Aeronautics 2025年第4期38卷 361-377页

作者： Yenan GAO School of Mechanical Engineering and Automation Beihang UniversityBeijing 100191China China North Industries Group Corporation Limited Beijing 100089China

Aero engines are key power components that provide thrust for the *** cerme turbine disc allows the new-generation domestic fighter aircraft to increase the overall thrust of the aero *** coatings and analyzing the stress on the teeth play critical roles in improving the turbine disc’s performance,which are two issues must be solved ***,this work pro poses a quantitative analysis algorithm to conduct the Three-Dimensional(3D)distribution informa tion mining of the extracted ***,it proposes an Industrial Computed Laminography(ICL)reconstruction algorithm for non-destructively reconstructing the turbine disc’s high-quality3D morphological actual ***,a Finite Element analysis(FEA)under the ultimate thrus is conducted on ICL reconstruction to verify the working status of the new-generation aero-engine turbine *** results show that the proposed quantitative analysis algorithm digitizes the aggre gated conditions of the coating with a statistically normalized Z_(1)value of–2.15 and a confidence leve higher than 95%.Three image-quality quantitative indicators:Peak Signal-to-Noise Ratio(PSNR)Structural Similarity Index Measure(SSIM),and Normalized Mean Square Distance(NMSD)of the proposed ICL reconstruction algorithm on turbine disc laminographic image are 26.45,0.88,and 0.73respectively,which are better than other *** mechanical analysis of ICL more realisti cally reflects the stress and deformation than that of 3D *** work provides new ideas for the iterative research of new-generation aero-engine turbine discs.

关键词： Aero engines quantitative analysis algorithm Information mining Industrial computed laminography reconstruction algorithm Finite element analysis

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