基于逆向工程的破碎叶片几何模型重建

2010 Third International Conference on Intelligent Networks and Intelligent Systems Pub Date : 2010-11-01 DOI:10.1109/ICINIS.2010.16

Jinhua Li, Fangping Yao, Yongxian Liu, Yongguo Wu

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引用次数: 13

摘要

为了提高叶片修复效率，提出了一种基于逆向工程的叶片法向模型几何重构方法。其中涉及的关键技术包括破碎叶片的数字化测量、点云预处理、三维模型等。在对点云进行预处理后，采用基于4D Shepard曲面的曲率估计方法从点云中提取损伤区域。用Bezier曲线构造提取的边界点。利用提取的点重构贝塞尔曲面，并将其用于破碎空间细分。最后，建立了激光成形修复准备的几何模型。

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Reconstruction of Broken Blade Geometry Model Based on Reverse Engineering

To improve the efficiency of blade repair, a reverse engineering-based geometry reconstruction method is developed for the normal model creation of a broken blade. The key techniques involved are including the digital measurement of broken blade, point cloud pre-processing, three dimensional models and so on. After the point cloud pre-processing, the segmentation extracts the damaged region from point cloud by a 4D Shepard surface based curvature estimation method. Bezier curve is used to construct the extracted boundary points. Bezier surface is reconstructed by the extracted points and is used to broken space subdivision. At last, a geometry model is built for the preparement of the laser forming repair.

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2010 Third International Conference on Intelligent Networks and Intelligent Systems

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