A Model for Recognition of Geometrical Elements of Blade Feathers of Gas-Turbine Engines
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A model for recognition of the geometric elements of the blade feathers is proposed that allows automated analysis of the measured data and computation of the geometric parameters of the feather using modern coordinate measuring equipment. A description of the mathematical model for recognition of the geometrical elements of the blade feather is provided. The model is based on clustering of the points according to the span, mathematical description of the curves of individual profiles, computation of the curvature values at the curve points, filtering of the curvature values, and clustering of the profile points by the curvature value. The proposed model and the software system for its implementation have been verified by measuring the blade feather of a gas turbine compressor using a coordinate measuring machine.
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