Automatic Extraction of Assembly Component Relationships for Assembly Model Retrieval

Even if during the Product Design Process, assembly models are described in terms of their constitutive components and associated relationships, only the position of each component is often stored within the Digital Mock-Up. Thus, the mating information are lost. However, these relationships are cru...

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Bibliographic Details
Published inProcedia CIRP Vol. 50; pp. 472 - 477
Main Authors Lupinetti, Katia, Giannini, Franca, Monti, Marina, Pernot, Jean-Philippe
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2016
ELSEVIER
Subjects
Assembly model retrieval
Computer Science
Contact analysis
Degree of freedom detection
Engineering Sciences
Mechanical engineering
Mechanics
Modeling and Simulation
Assembly model retrieval
Contact analysis
Degree of freedom detection
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Summary:Even if during the Product Design Process, assembly models are described in terms of their constitutive components and associated relationships, only the position of each component is often stored within the Digital Mock-Up. Thus, the mating information are lost. However, these relationships are crucial for many applications, such as retrieval, assembly planning and finite element simulations. In this paper, we propose a method for the detection and use of the mating relationships for assembly model retrieval. The proposed approach detects and analyses the interferences between parts to compute their degree of freedom and kinematic pairs. To support the retrieval of assembly models, the extracted information are formalized and capitalized in a newly proposed hierarchical assembly model descriptor. Results of the application of the method are also provided to show the system capabilities. Moreover, considering that a same joint can be defined in multiple ways, this work provides also a method for retrieving assemblies in a dataset according to the part relationships and their class of equivalence.
ISSN:2212-8271
2212-8271
DOI:10.1016/j.procir.2016.04.148