Article: An extension of the core product model for the maturity management of the digital mock up: use of graph and knowledge to describe mechanical parts Journal: International Journal of Product Lifecycle Management (IJPLM) 2014 Vol.7 No.1 pp.94 - 110 Abstract: Reverse engineering (RE) of mechanical parts consists in creating a 3D virtual model using data that are often gathered by 3D measurement systems like laser scanners. The resulting point cloud is then transformed into a geometrical model. The purpose of RE activity is to make maintenance or redesign operations easier. The boundary of the literature is the component, isolated from its product assembly. Because of unreported on-field maintenance, a long time running in-use product may not reflect its digital mock-up (DMU) anymore. In order to maintain an efficient lifecycle, the changes made have to be considered. This paper focuses on the development of a knowledge-based RE methodology to support the DMU maturity management: to identify the maturity defaults, which correspond to unreported changes, in the CAD assembly model in order to make it matching the real product. That approach is supported by a core product model data model extension. Inderscience Publishers - linking academia, business and industry through research

Title: An extension of the core product model for the maturity management of the digital mock up: use of graph and knowledge to describe mechanical parts

Authors: Guillaume Herlem; Pierre-Antoine Adragna; Guillaume Ducellier; Alexandre Durupt

Addresses: LASMIS, UMR ICD 6281, Université de Technologie de Troyes, Troyes, France ' LASMIS, UMR ICD 6281, Université de Technologie de Troyes, Troyes, France ' LASMIS, UMR ICD 6281, Université de Technologie de Troyes, Troyes, France ' Laboratoire Roberval UMR 7337, Université de Technologie de Compiègne, Compiègne, France

Abstract: Reverse engineering (RE) of mechanical parts consists in creating a 3D virtual model using data that are often gathered by 3D measurement systems like laser scanners. The resulting point cloud is then transformed into a geometrical model. The purpose of RE activity is to make maintenance or redesign operations easier. The boundary of the literature is the component, isolated from its product assembly. Because of unreported on-field maintenance, a long time running in-use product may not reflect its digital mock-up (DMU) anymore. In order to maintain an efficient lifecycle, the changes made have to be considered. This paper focuses on the development of a knowledge-based RE methodology to support the DMU maturity management: to identify the maturity defaults, which correspond to unreported changes, in the CAD assembly model in order to make it matching the real product. That approach is supported by a core product model data model extension.

Keywords: DMU maturity; product reverse engineering; product assembly; core product model; CPM; CAD; product lifecycle management; PLM; PDM; product data management; maturity management; digital mockups; mechanical parts.

DOI: 10.1504/IJPLM.2014.065462

International Journal of Product Lifecycle Management, 2014 Vol.7 No.1, pp.94 - 110

Received: 07 Jun 2013
Accepted: 28 May 2014
Published online: 31 Oct 2014 *

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Title: An extension of the core product model for the maturity management of the digital mock up: use of graph and knowledge to describe mechanical parts

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