Concept for tolerance design in early design stages based on skeleton models

A noticeable trend in mechanical industry is that the product lifecycle and within the product development phase shortens. One consequence is the necessity to perform product-analyses already in early design stages, even if the geometry of the product is only sketchy defined by skeleton models. For product functionality the dimensional and geometric variations of the product components play an important role, which are analyzed and limited by tolerancing. The lack of geometric information in the early design phase is challenging for tolerance analysis, but also offers chances by more flexibility of the product developer in changing the products geometry. Therefore, this paper presents the concept to perform tolerance design based on skeleton models.

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