测控技术2024，Vol.43Issue(8)：37-43,57,8.DOI:10.19708/j.ckjs.2024.04.219
航空发动机高精度高效温度畸变测试技术研究
Research on High Precision and Efficiency Temperature Distortion Testing Technology of Aeroengines
摘要
Abstract
In order to improve the precision and efficiency of aeroengine temperature distortion test,an aero-engine temperature distortion test scheme for small inertial fine-wire thermocouple test conditions is designed.On this basis,the dynamic error correction method of temperature distortion and the software repair algorithm of failure data are studied.The influence of the signal-to-noise ratio of the original temperature signal on the cor-rected signal error is studied,and the dynamic error correction method under different signal-to-noise ratios is proposed,which ensures that the steady-state relative error of the distorted temperature data is less than 2％af-ter dynamic correction.Considering the spatial dimension,under certain repair criteria,a software repair algo-rithm for testing failure data is proposed.The repair algorithm not only ensures the high test accuracy of tem-perature distortion index,but also improves the test efficiency.After verifying a large amount of aeroengine tem-perature distortion test data in the real environment,the results show that the dynamic error correction method of temperature distortion and the software repair algorithm of failure data are feasible,and the temperature dis-tortion test can be carried out efficiently on the basis of ensuring high precision test.关键词
航空发动机/温度畸变/热电偶/高精度/高效率Key words
aeroengine/temperature distortion/thermocouple/high precision/high efficiency引用本文复制引用
孙海龙,王亮,耿欣,张天昊..航空发动机高精度高效温度畸变测试技术研究[J].测控技术,2024,43(8):37-43,57,8.基金项目
国家重大科技专项(J2019-I-0011-0011) （J2019-I-0011-0011）
