A Rapid Method to Achieve Aero-Engine Blade Form Detection

This paper proposes a rapid method to detect aero-engine blade form, according to the characteristics of an aero-engine blade surface. This method first deduces an inclination error model in free-form surface measurements based on the non-contact laser triangulation principle. Then a four-coordinate...

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Main Authors: Bin Sun, Bing Li
Format: Article
Language:English
Published: MDPI AG 2015-06-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/15/6/12782
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author Bin Sun
Bing Li
author_facet Bin Sun
Bing Li
author_sort Bin Sun
collection DOAJ
description This paper proposes a rapid method to detect aero-engine blade form, according to the characteristics of an aero-engine blade surface. This method first deduces an inclination error model in free-form surface measurements based on the non-contact laser triangulation principle. Then a four-coordinate measuring system was independently developed, a special fixture was designed according to the blade shape features, and a fast measurement of the blade features path was planned. Finally, by using the inclination error model for correction of acquired data, the measurement error that was caused by tilt form is compensated. As a result the measurement accuracy of the Laser Displacement Sensor was less than 10 μm. After the experimental verification, this method makes full use of optical non-contact measurement fast speed, high precision and wide measuring range of features. Using a standard gauge block as a measurement reference, the coordinate system conversion data is simple and practical. It not only improves the measurement accuracy of the blade surface, but also its measurement efficiency. Therefore, this method increases the value of the measurement of complex surfaces.
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spelling doaj.art-b7d8a4ec966646e0a0f5250eee5d5aca2022-12-22T03:59:36ZengMDPI AGSensors1424-82202015-06-01156127821280110.3390/s150612782s150612782A Rapid Method to Achieve Aero-Engine Blade Form DetectionBin Sun0Bing Li1State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, ChinaState Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, ChinaThis paper proposes a rapid method to detect aero-engine blade form, according to the characteristics of an aero-engine blade surface. This method first deduces an inclination error model in free-form surface measurements based on the non-contact laser triangulation principle. Then a four-coordinate measuring system was independently developed, a special fixture was designed according to the blade shape features, and a fast measurement of the blade features path was planned. Finally, by using the inclination error model for correction of acquired data, the measurement error that was caused by tilt form is compensated. As a result the measurement accuracy of the Laser Displacement Sensor was less than 10 μm. After the experimental verification, this method makes full use of optical non-contact measurement fast speed, high precision and wide measuring range of features. Using a standard gauge block as a measurement reference, the coordinate system conversion data is simple and practical. It not only improves the measurement accuracy of the blade surface, but also its measurement efficiency. Therefore, this method increases the value of the measurement of complex surfaces.http://www.mdpi.com/1424-8220/15/6/12782bladelaser displacement sensorfreeform surfaceerror compensationfour-coordinate measuring system
spellingShingle Bin Sun
Bing Li
A Rapid Method to Achieve Aero-Engine Blade Form Detection
Sensors
blade
laser displacement sensor
freeform surface
error compensation
four-coordinate measuring system
title A Rapid Method to Achieve Aero-Engine Blade Form Detection
title_full A Rapid Method to Achieve Aero-Engine Blade Form Detection
title_fullStr A Rapid Method to Achieve Aero-Engine Blade Form Detection
title_full_unstemmed A Rapid Method to Achieve Aero-Engine Blade Form Detection
title_short A Rapid Method to Achieve Aero-Engine Blade Form Detection
title_sort rapid method to achieve aero engine blade form detection
topic blade
laser displacement sensor
freeform surface
error compensation
four-coordinate measuring system
url http://www.mdpi.com/1424-8220/15/6/12782
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