Reference : Théorie de l'erreur de circularité
Reports : Internal report
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/28644
Théorie de l'erreur de circularité
French
[en] Theory of the circularity error
Debongnie, Jean-François mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Méthodes de fabrication >]
Aug-2008
ULg/LTAS
26
LMF/D48
Liège
Belgium
[en] Form errors ; circularity ; existence ; unicity ; characterization
[en] This report gives the theory of the circularity error, as defined by ISO-norms, that is, the minimum of the radius difference between two concentric circles that enclose the measured curve. The common center of the optimal pair of circles being called the best center, the question of its existence is fully discussed. It is then proved that this problem is equivalent to the research of a circle which is the best approximation of the given curve by respect of a uniform norm. A characterization of the best center is developed, from which the unicity of the best center is proved.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/28644
Adjuvant utile aux méthodes numériques de calcul de la circularité, dans la mesure où la caractérisation de l'optimum permet de vérifier la plausibilité des résultats numériques.

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