APPLICATION RESEARCH ON EVALUATION OF AERO-ENGINE BLADE PROFILE PARAMETERS

The 8th International Symposium on Test Automation & Instrumentation (ISTAI 2020) Pub Date : 1900-01-01 DOI:10.1049/icp.2021.1314

T. Pan, X. He, G. Wu, X. He, X. L. Xu

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Abstract

The geometrical size of the aeroengine blade profile are mainly measured by coordinate measuring machines. And then the parameters are evaluated by software analysis. Now the software for evaluating blade parameters mainly includes products of companies such as Renishaw, Hexagon, Zeiss, and Geomagic. By using the same coordinate measuring machines (CMM) and different software to carry out the comparative experiment of measuring the parameters of model and actual blade with the contour section, the method for experimenting and comparing with the algorithms of the blade profile parameter is proposed. It expounds the general parameters, general algorithms and the magnitude of data discrepancy of measurement software. The experiment results show that Hexagon and Renishaw are more comprehensive than Zeiss and Geomagic in terms of parameter algorithms. On the other hand, the contour of the actual blade is not perfect curve, which leads to errors in measurement, so that the deviation of the evaluation value of the parameters on the actual blade is much larger than that on the model.

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航空发动机叶片型面参数评价的应用研究

航空发动机叶型几何尺寸的测量主要采用三坐标测量机。然后通过软件分析对参数进行评估。目前刀片参数评估软件主要有雷尼绍、海克斯康、蔡司、Geomagic等公司的产品。利用相同的三坐标测量机(CMM)和不同的软件，对模型叶片和实际叶片进行轮廓截面参数测量的对比实验，提出了对叶片轮廓参数的算法进行实验和比较的方法。阐述了测量软件的一般参数、一般算法和数据差异的大小。实验结果表明，Hexagon和Renishaw在参数算法方面比蔡司和Geomagic更全面。另一方面，实际叶片的轮廓不是完美的曲线，导致测量误差，使得实际叶片上的参数评价值的偏差远大于模型上的参数评价值。

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The 8th International Symposium on Test Automation & Instrumentation (ISTAI 2020)

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