Aeronautical blade profile machining error visualization method

A technology for aviation blade and surface processing, applied in design optimization/simulation, special data processing applications, measurement devices, etc., can solve the problem of low degree of visualization of detection information, visualization method of aviation blade surface processing errors, and inability to process aviation blade surfaces Efficient and accurate analysis of errors and other issues to achieve high analysis efficiency

Active Publication Date: 2017-12-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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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

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  • Aeronautical blade profile machining error visualization method
  • Aeronautical blade profile machining error visualization method
  • Aeronautical blade profile machining error visualization method

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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 an aeronautical blade profile machining error visualization method. The method specifically comprises the steps of measuring a machined blade, and performing processing to obtain accurate blade body measurement data; reconstructing an actually measured blade body profile; based on a longitudinal profile curve of a reconstructed blade body model, adaptively planning contour planes of a plurality of grid nodes in a Z-axis direction; building a grid model with a node layer characteristic on the reconstructed profile model; according to a theoretical blade body profile, calculating a profile error of each grid node located on the section, and extracting a position error of each section layer; and according to an allowable error of the blade body profile, determining mapping relationships between an error value and RGB color components, and based on a computer graphic library, realizing visual display of an aeronautical blade profile machining error. According to the method, the blade profile error, a distortion deformation error, a sweeping deformation error, a bending deformation error and a section profile over-error can be accurately and intuitively subjected to visual display, so that the blade profile quality assessment efficiency can be effectively improved.

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 Applications(China)
IPC IPC(8): G06F17/50G01B21/20G01B21/32
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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