发电技术 ›› 2024, Vol. 45 ›› Issue (1): 106-112.DOI: 10.12096/j.2096-4528.pgt.21146

• 发电及环境保护 • 上一篇    下一篇

一种基于图像的燃气轮机叶型参数测量方法

崔则阳1,2,3,4, 孔祥玲2, 付经伦1,2,3,4, 施佳君2   

  1. 1.中国科学院工程热物理研究所先进燃气轮机实验室,北京市 海淀区 100190
    2.中科;南京未来能源系统研究院燃气轮机数字化中心,江苏省 南京市 210000
    3.中国科学院大学,北京市 海淀区 100000
    4.中国科学院大学南京学院,江苏省 南京市 210000
  • 收稿日期:2022-01-07 出版日期:2024-02-29 发布日期:2024-02-29
  • 作者简介:崔则阳(1984),男,硕士研究生,研究方向为燃气轮机数字化、图像处理,cuizeyang21@mails.ucas.ac.cn
    孔祥玲(1984),女,博士,副研究员,从事机器人运动控制、机器视觉、最优化理论及应用、路径优化控制等方面的研究,本文通信作者,kongxiangling@njiet.cn
    付经纶 (1979),女,博士,研究员,研究方向为燃气轮机透平强耦合机理研究及数字化,Email:fujl@iet.cn
    施佳君 (1990),女,硕士,研究方向为燃气轮机总体性能设计与分析。
  • 基金资助:
    国家自然科学基金项目(51377011)

An Image-Based Turbine Blade Parameter Inspection Method

Zeyang CUI1,2,3,4, Xiangling KONG2, Jinglun FU1,2,3,4, Jiajun SHI2   

  1. 1.Advanced Gas Turbine Laboratory, IET, CAS, Haidian District, Beijing 100190, China
    2.Gas Turbine Digitalization Research Center, Nanjing Institute of Future Energy System, Nanjing 210000, Jiangsu Province, China
    3.University of Chinese Academy;of Sciences, Haidian District, Beijing 100000, China
    4.University of Chinese Academy of Sciences, Nanjing 210000, Jiangsu Province, China
  • Received:2022-01-07 Published:2024-02-29 Online:2024-02-29
  • Supported by:
    National Natural Science Foundation of China(51377011)

摘要:

叶型参数的准确测量是实现叶片性能诊断和逆向建模的关键步骤。为了提高叶型参数的测量效率,提出了一种基于图像的参数提取方法。首先,采用骨架提取算法对叶片中弧线进行定位;然后,通过拟合计算获得中弧线函数及叶型厚度分布;最后,采用优化算法提高叶型参数辨识精度。实验结果表明,所提出的基于图像的叶型测量方法具有较高的准确性,测量相对误差小于1.5%,且应用方便、灵活,为叶片几何参数的快速、准确测量提供了新的解决方法。

关键词: 燃气轮机, 叶型参数测量, 图像处理, 骨架提取

Abstract:

Accurate inspection of the feature parameters of the blade is a pivotal step to conduct the performance diagnosis and reverse modeling. To improve the inspection efficiency, an image-based parameter inspection method was proposed. First, the skeleton extraction algorithm was used to locate the middle arc of the blade. Then, the middle arc function and the blade thickness distribution function were obtained by the 3-order polynomial curve fitting algorithms. Finally, an optimization algorithm was derived to improve the inspection accuracy. Experimental results show that the proposed image-based feature parameter inspection method has high accuracy, and the relative measurement error is less than 1.5%. It provides a new solution for the rapid and accurate measurement of blade geometric parameters.

Key words: gas turbine, blade parameter inspection, image processing, skeleton extraction

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