Statistical shape modeling in virtual assembly using PCA-technique
Paper i proceeding, 2012

The use of virtual assembly tools is one way to understand and improve the geometric product tolerance setting and the conditions for successful manufacturing. Recent developments enable consideration to be given to the deformability of parts when joined. However, in order to produce reliable results, the geometric faults of the mating surfaces must be correctly assumed. In this paper, statistical shape models built on the Principal Component Analysis-technique are proposed to be used to describe the part variation. A generalized model is presented. Furthermore, the underlying intentions and implications are discussed. The method is exemplified using the tool RD&T. In the presented case, a non-rigid sheet metal assembly is modeled and distorted to create a set of sample shapes from which a statistical model is built. In the result, the statistic representation bears a good resemblance to the nominal distorted model when the two are compared.

analysis

sheet metal

simulation

geometric modeling

Författare

Björn Lindau

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

Alf Andersson

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

Lars Lindkvist

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

Rikard Söderberg

Chalmers, Produkt- och produktionsutveckling, Produktutveckling

Technologies and Systems for Assembly Quality, Productive and Customization; ed. by Jack S. Hu; Proceedings of the 4th CIRP Conference on Assembly Technologies and Systems May 21 - 22, 2012, Ann Arbor, Michigan, USA

119 - 124

Ämneskategorier

Produktionsteknik, arbetsvetenskap och ergonomi

Styrkeområden

Produktion

ISBN

978-0-615-64022-8