A comparative analysis beetwen two different non-contact methods of reverse engineering (RE) data acquisition, a laser system and an ultrasonic system, is carried out. The product selected for the comparison is a turbine blade for aeronautical engines. This product is characterized by a complex external geometry as well as by internal features (cooling channels). In a first phase, the shape of the turbine blade was acquired in the form of point clouds using the two RE methods. In a second phase, the geometrical features of the turbine blade were reconstructed on the basis of the obtained point clouds. In the final phase, a comparison between the two reconstructions was performed. The systems characteristics, the point clouds and the resulting surfaces were compared and critically assessed.

Acquisition and reconstruction of turbine blade geometry for a comparative analysis beetwen different non contact reverse engineering method.

SPERANZA, DOMENICO;
2004

Abstract

A comparative analysis beetwen two different non-contact methods of reverse engineering (RE) data acquisition, a laser system and an ultrasonic system, is carried out. The product selected for the comparison is a turbine blade for aeronautical engines. This product is characterized by a complex external geometry as well as by internal features (cooling channels). In a first phase, the shape of the turbine blade was acquired in the form of point clouds using the two RE methods. In a second phase, the geometrical features of the turbine blade were reconstructed on the basis of the obtained point clouds. In the final phase, a comparison between the two reconstructions was performed. The systems characteristics, the point clouds and the resulting surfaces were compared and critically assessed.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11580/20200
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