作者：夏桂书¹, 吴虹星¹, 魏永超², 武兴焜¹

作者单位：1. 中国民用航空飞行学院航空电子电气学院，四川 广汉 618307;
2. 中国民用航空飞行学院科研处，四川 广汉 618307

关键词：型面形变;模拟工况;压气机叶片;叶长

摘要：

针对工况下航空发动机叶片形变问题，实现航空发动机叶片动态检测系统，并开展形变分析研究。利用发动机叶片模拟工况实验平台，基于光电检测和结构光面型测量技术，开发高速三维测量系统，通过激光对射传感器和单片机同步触发控制高速相机进行测量，并结合傅里叶变换轮廓术，完成不同转速下，真实发动机叶片的形变图像采集与三维型面重建。型面重构数据表明：叶片处于加速和减速状态时，型面变化趋近一致并呈现非线性，但加速时形变量更大且随着转速增加而增加。论文结果对研究发动机性能和发动机叶片设计制造有一定参考意义。

Deformation measurement of aero-engine blades under rotating state
XIA Guishu¹, WU Hongxing¹, WEI Yongchao², WU Xingkun¹
1. Institute of Electronic and Electrical Engineering, Civil Aviation Flight University of China, Guanghan 618307, China;
2. Department of Research, Civil Aviation Flight University of China, Guanghan 618307, China
Abstract: Aiming at the problem of aero-engine blades deformation under working conditions, the dynamic detection system of aero-engine blades was developed, and then the deformation analysis was carried out. A high-speed three-dimensional measurement system was realized by experimental platform with simulated working-condition of aero-engine blades, which was based on photoelectric detection and structured light surface measurement technology. The high-speed camera was synchronous measured by laser beam sensor and single-chip microcomputer. The deformation images were acquired and three-dimensional surface reconstruction of real engine blade at different speeds were accomplished combined with Fourier transform profilometry. The surface reconstructed data shows that variation of blade surface deformation has a non-linear consistent trend during acceleration and deceleration, but the deformation is larger during acceleration and increases with the increasing of speed. The results of this paper have a certain guiding significance for the study of engine performance and the design of engine blades.
Keywords: profile deformation;simulated working-condition;compressor blade;blade length
2022, 48(12):40-44  收稿日期: 2021-07-27;收到修改稿日期: 2021-10-13
基金项目: 国家自然科学基金（U1633127）；中国民用航空飞行学院科研基金（CJ2020-01，J2020-040）；四川省科技重点项目（2020YFG0449）
作者简介: 夏桂书(1968-),女,四川成都市人,教授,硕士,研究方向为航空电子
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