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A Visualization Method of Aviation Blade Surface Machining Error

A technology for aviation blade and surface processing, which is applied in the direction of design optimization/simulation, instruments, measuring devices, etc., can solve the problem of low degree of visualization of detection information, visualization method of aviation blade surface processing error, inability to efficiently process error of aviation blade surface, Accurate analysis and other issues to achieve the effect of high analysis efficiency

Active Publication Date: 2020-09-01
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing blade profile detection information has a low degree of visualization, and the traditional visual analysis method cannot efficiently and accurately analyze the machining error of the aviation blade profile, and proposes an aviation blade profile Visualization Method of Machining Error

Method used

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  • A Visualization Method of Aviation Blade Surface Machining Error
  • A Visualization Method of Aviation Blade Surface Machining Error
  • A Visualization Method of Aviation Blade Surface Machining Error

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing, provide the specific embodiment of the present invention. It should be noted that the blades used in the embodiments are not specific, and the method of the present invention can be generally applied to the visual analysis of processing errors of conventional blades.

[0032] In this embodiment, a certain type of aviation blade is taken as an example. The specific process of the visual analysis method for the machining error of the airfoil profile is as follows: figure 1 shown, including the following steps:

[0033] S1: Obtain the measurement data of the airfoil profile

[0034] Specifically, the processed blade can be measured by the equal section method with a contact coordinate measuring machine, and the measurement data can be preprocessed accordingly to obtain accurate blade body measurement data, that is, the ordered measurement point set T i，j , where, i=1, 2...n; j=1, 2...m, n is the number of layers in the meas...

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Abstract

The invention discloses a method for visualizing machining errors of aviation blade profiles, which specifically includes: measuring the processed blades and processing to obtain accurate blade body measurement data; reconstructing the measured blade body profile; According to the longitudinal contour curve of the body model, the contour surfaces of several grid nodes are adaptively planned in the Z-axis direction; a grid model with node layer characteristics is constructed on the reconstructed surface model; according to the theoretical blade body shape line, the calculation is located The contour error of each grid node on the section, and extract the position error of each section layer; determine the mapping relationship between the error value and the RGB color component according to the tolerance of the blade body profile, and realize the processing error of the aviation blade profile based on the computer graphics library visual display of . The method of the invention can accurately and visually display the blade profile error, twisting deformation error, sweeping deformation error, bending deformation error and cross-sectional profile error, and can effectively improve the efficiency of blade profile quality evaluation.

Description

technical field [0001] The invention belongs to the field of quality inspection and relates to the inspection of the machining quality of aeroengine blades, in particular to a visualization method for machining errors of aviation blade profiles. Background technique [0002] The blade is the core component of an aero-engine, and its surface quality largely determines the propulsion efficiency of the engine. With the continuous improvement of engine performance requirements, the blade profile detection technology also puts forward higher requirements in terms of accuracy and efficiency. At present, the main blade measurement systems mostly use the contour section as the analysis unit, aiming at the characteristics of the section profile. parameter evaluation, lack of accurate, comprehensive, and intuitive visual analysis of the overall blade surface processing error, resulting in the current blade surface inspection report content is complicated, the correlation between cross...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G01B21/20G01B21/32
CPCG01B21/20G01B21/32G06F30/20
Inventor 黄智李超李凯王洪艳吴献钢
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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