韩 旭1,2 ,崔海华 1 ,颜诚2 ,李义勇 2.基于3维空间平面扫掠的导向器最小排气面积计算方法[J].航空发动机,2024,50(6):132-136
Calculation Method for Throat Area of Turbine Nozzle Guide Vanes Based on 3D Spatial Plane Scanning
DOI:
Key Words:aeroengine  turbine nozzle guide vanes (NGVs)  throat area  non-contact laser measurement  measurement system
作者单位
韩 旭1,2 ,崔海华 1 ,颜诚2 ,李义勇 2 1.南京航空航天大学 机电学院南京210016 2.中国航发南方工业有限公司湖南株洲412002 
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Abstract:In order to measure the throat area of aeroengine turbine Nozzle Guide Vanes (NGVs) accurately and efficiently, a calcula? tion method for throat area based on 3D spatial plane scanning was proposed. The throat area of duplex, quadruplex, and full-ring NGVs were measured and calculated, and their differences with the design values and the Coordinate Measuring Machine (CMM) measurement results were analyzed and compared, respectively. The results show that the throat area errors of the non-contact laser measurement do not increase proportionally with the increase of the measured area, which are similar to the CMM measurement results with a range variation of 0.184 cm 2 , verifying the correctness and accuracy of the proposed method to a certain extent. The Gage Repeatability and Reproducibility (GR&R) of the measuring system is only 10.2%, and the range of the throat area from 10 NGVs measured by three operators is only 0.025 cm 2 , which means that this method can meet the engineering requirements.
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