A Reconstruction Algorithm for Blade Surface Based on Less Measured Points

Liu, Jia; Zhao, Jianfeng; Yang, Xu; Liu, Jiming; Qu, Xingtian; Wang, Xin

doi:10.1155/2015/431824

Cited by 4 publications

(3 citation statements)

References 34 publications

(36 reference statements)

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“…On the optimal attitude, the point on the partition surface corresponds to the point in the point cloud and is calculated according to their X O Y O coordinates. Due to the parametric expression of the surface, it is an iterative solving problem which is expressed as equation (13), and this problem can be solved using the Newton iteration method.…”

Section: Establishment Of the Dual-domain Mapping Relationmentioning

confidence: 99%

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A method for fast reconstruction of closed section workpiece surface using point clouds

Li,

Song,

et al. 2024

Advances in Mechanical Engineering

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Parameterized reconstruction of workpiece surfaces is a critical step for advanced manufacturing applications, such as the solving of machining parameters, and the expression of workpiece in situ measurement. Generally, the point clouds model is easy to obtain and can be seen as the source model of the workpiece, and the B-spline surface is always taken as the ideal target parameterized model. Existing research focuses on reconstructing the single-valued surface, which can be projected onto a spatial plane without overlapping. However, the dual-valued surface, which overlaps at least twice, is also commonly encountered in industry, and has few investigations. Therefore, this paper proposes a fast reconstruction method based on reasonable segmentation and parameter domain mapping. In this approach, first, the dual-valued point clouds model is segmented into multiple single-valued point clouds models according to the sought edges in the optimal attitude. Then, the grid point coordinates of the single-valued point clouds model are calculated using the parametric-domain moving least squares method. Finally, the B-spline surface is generated by interpolating these grid points. The proposed algorithm is applied to single-bending closed-section workpieces such as the turbine blade to illustrate the effectiveness of this method. The contrast results with existing method demonstrate that the proposed approach can reconstruct the workpiece with multi-valued surfaces more quickly and more accurately, which is significant in advanced manufacturing.

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Section: Establishment Of the Dual-domain Mapping Relationmentioning

confidence: 99%

“…Given the reconstruction of the B-Spline surface from the point cloud, there have been several excellent approaches. [13][14][15] However, these methods have defects of inefficiency and inaccuracy because above workpieces' characteristics of dual value, single bend, and high precision machining.…”

Section: Introductionmentioning

confidence: 99%

A method for fast reconstruction of closed section workpiece surface using point clouds

Li,

Song,

et al. 2024

Advances in Mechanical Engineering

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“…Many researchers showed in their literatures different algorithms for simplification of data points obtained from 3D laser scanners. J. Liu et al [2] proposed an effective and simple reconstruction algorithm based on interpolation of B-spline surfaces of blade surface by section curves with less acquired points, to improve the aerodynamic performance for the blade surfaces. The less acquired points of the section curves were gritted using the Coordinate Measuring Machine.…”

Section: Introductionmentioning

confidence: 99%

Pre-Processing and Surface Reconstruction of Points Cloud Based on Chord Angle Algorithm Technique

Al-Bdairy

Al-Duroobi

Tawfiq

2020

alkej

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Abstract Although the rapid development in reverse engineering techniques, 3D laser scanners can be considered the modern technology used to digitize the 3D objects, but some troubles may be associate this process due to the environmental noises and limitation of the used scanners. So, in the present paper a data pre-processing algorithm has been proposed to obtain the necessary geometric features and mathematical representation of scanned object from its point cloud which obtained using 3D laser scanner (Matter and Form) through isolating the noised points. The proposed algorithm based on continuous calculations of chord angle between each adjacent pair of points in point cloud. A MATLAB program has been built to perform the proposed algorithm which implemented using a suggested case studies with cylinder and dome shape. The resulted point cloud from application the proposed algorithm and result of surface fitting for the case studies has been proved the proficiency of the proposed chord angle algorithm in pre-processing of data points and clean the point cloud, where the percent of data which was ignored as noisy data points according to proposed chord angle algorithm was arrived to (81.52%) and (75.01%)of total number of data points in point cloud for first and second case study respectively.

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A robust and accurate automated registration method for turbine blade precision metrology

Guo

et al. 2018

Int J Adv Manuf Technol

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A Reconstruction Algorithm for Blade Surface Based on Less Measured Points

Cited by 4 publications

References 34 publications

A method for fast reconstruction of closed section workpiece surface using point clouds

A method for fast reconstruction of closed section workpiece surface using point clouds

Pre-Processing and Surface Reconstruction of Points Cloud Based on Chord Angle Algorithm Technique

A robust and accurate automated registration method for turbine blade precision metrology

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