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Identification and optimization of key process parameters in noncontact laser scanning for reverse engineeringKorošec, Marjan, strojnik, 1961- ; Duhovnik, Jože, 1948- ; Vukašinović, Nikola, strojnikThis Extended Technical Note shows that the final accuracy level of reverse engineered surfaces depends on scanning distance and scanning angle of the laser beam, hence it also depends on the ... morphology of the scanned objects. On scanning strongly curved objects, such as the ones with free form surfaces, the distance and impact angle of the laser beam are changing continuously during the scanning process. On the basis of these, two critical parameters are specified for the design model, which make it possible to predict these two factors in advance, depending on the morphology of the scanned object. First, a mathematical-statistical design model of the scanning process is generated, which relies on ANOVA (analysis of variance) and DOE (design of experiments). In the next step, a fitness function is optimized by the genetic algorithm (GA) program. This optimization improves the accuracy of the final scanned surfaces, in terms of the minimum standard deviation values of reverse engineered 3D surface model. The proposed approach was confirmed in a case study, which is presented at the end of this Technical Note.Source: Computer Aided Design. - ISSN 0010-4485 (Vol. 42, iss. 8, Aug. 2010, str. 744-748)Type of material - article, component partPublish date - 2010Language - englishCOBISS.SI-ID - 11479067
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Korošec, Marjan, strojnik, 1961- | 19048 |
Duhovnik, Jože, 1948- | 02859 |
Vukašinović, Nikola, strojnik | 25450 |
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