Smooth reconstruction of blade profile from data points and its characterization
Thin-Walled Structures, cilt.218, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 218
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.tws.2025.113846
- Dergi Adı: Thin-Walled Structures
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
- Anahtar Kelimeler: Aero-engine, Bezier curve, Blade, Fairing, Geometry fitting, Inspection, Reconstruction
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
In the current paper, reconstruction and characterization procedures for the blade profile data points are comprehensively presented. For the reconstruction, a single C2-continuous fair Bezier curve fitting algorithm is developed. This algorithm is based on the nonlinear least squares fitting method and it performs fitting and fairing processes concurrently, which eliminates the need for post processing of the reconstructed blade profile. Thus, we are able to accurately represent large number of blade profile data points with maximum 14 control points of a Bezier curve. On the other hand, in the characterization procedure, the reconstructed blade profile camber line, radius distribution and fundamental design parameters (i.e., inlet metal, outlet metal and stagger angles, and chord length) are computed. The implementations and validations of the proposed procedures are completed with data points of various reference blade and airfoil profiles, and a worn aero-engine blade profile data points achieved via a coordinate measuring machine (CMM). The results have shown that the proposed procedures along with their algorithms are quite successful, practical, and powerful for the blade profile reconstruction and characterization. They have great potential as useful tools for the design, analysis, optimization, inspection, and manufacturing of the blades.