These two steps then are repeated for each trajectory

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Unformatted text preview: e cutting parameters. They correspond to latent information that can be extracted from the points sample and included in the derived element definition. Henke et al., [Henke et al., 1999] have integrated the first and second order defects directly in the definition of the mathematical model. They proposed to superimpose to the model of a perfect cylinder the cumulated effect of most classical machining defects (conicity, filet, trilobing…). The defects are described by polynomial Fourier series and all theirs possible combinations are investigated by a special algorithm. For each combination, a maximum probability is determined and used to select the combination leading to the most consistent model. The optimum defines the best fit of the analyzed surface. Choi et al., [Choi et al., 1998] have presented an alternative approach of the problem that does not require cataloging all the different kinds of defects. They used a beta distribution to reproduce the repartition of the distances...
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