A method for measuring the wall thickness of aeroengine blade tip groove

Haibo Qin; Yunyong Cheng; Xinxin Fan; Tianmiao Lin; Wenmiao Zhang

doi:10.1117/12.2648309

14 October 2022 A method for measuring the wall thickness of aeroengine blade tip groove

Haibo Qin, Yunyong Cheng, Xinxin Fan, Tianmiao Lin, Wenmiao Zhang

Proceedings Volume 12343, 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022); 1234313 (2022) https://doi.org/10.1117/12.2648309
Event: 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022), 2022, Qingdao, China

Abstract

As the main component of power generation, the wall thickness of aeroengine turbine blade affects the dynamic performance of the whole engine. The accurate measurement of wall thickness is very important in the production process of turbine blade. Based on the point cloud processing technology, aiming at the point cloud of blade tip groove obtained by optical focusing scanning, this paper simplifies and denoises the data through two steps of random sampling filtering and statistical filtering, fits the blade tip plane model, projects the point cloud onto the two-dimensional plane, extracts the boundary points of the plane point cloud by the concave envelope algorithm, selects the initial points and initial vectors, calculates the connecting distance of the boundary points, and completes the calculation of the wall thickness of the blade tip.

Citation Download Citation

Haibo Qin, Yunyong Cheng, Xinxin Fan, Tianmiao Lin, and Wenmiao Zhang "A method for measuring the wall thickness of aeroengine blade tip groove", Proc. SPIE 12343, 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022), 1234313 (14 October 2022); https://doi.org/10.1117/12.2648309

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