ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Turbine blade is one of the critical parts of the aero engine and usually has complexstructures. The main purpose of this paper is to present a virtual cutting based method for aeroengine turbine blade reverse modeling from its cone beam computed tomography (CBCT) images.Based on the turbine blade CBCT images, an improved Marching Cube algorithm was used toconstruct a 3D mesh model of the turbine blade. Then, cutting tools of parallel planes, concentriccylinders, concentric cones or revolved free form surfaces were used to cut the turbine blade meshmodel to get the profile curves. After the profile curves were constructed by curve fitting andjoining, the lofting geometric modeling technique was used to generate the turbine blade airfoilsurface working in parallel flow, cylindrical flow, conical flow and revolved free form flowrespectively. A set of computer simulating turbine blade CBCT images (512×512×512) was used totest the presented method and the testing results showed that the method was feasible andconvenient
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.532-533.877.pdf
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