International Journal of CAD/CAM

Society for Computational Design and Engineering (한국CDE학회)
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Design of a Feature-based Multi-viewpoint Design Automation System

  • Lee, Kwang-Hoon (Department of Mechatronics, Kwangju Institute of Science and Technology (K-JIST)) ;
  • McMahon, Chris A. (Department of Mechanical Engineering, University of Bath) ;
  • Lee, Kwan-H. (Department of Mechatronics, Kwangju Institute of Science and Technology (K-JIST))
  • Published : 2003.12.31
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Abstract

Viewpoint-dependent feature-based modelling in computer-aided design is developed for the purposes of supporting engineering design representation and automation. The approach of this paper uses a combination of a multi-level modelling approach. This has two stages of mapping between models, and the multi-level model approach is implemented in three-level architecture. Top of this level is a feature-based description for each viewpoint, comprising a combination of form features and other features such as loads and constraints for analysis. The middle level is an executable representation of the feature model. The bottom of this multi-level modelling is a evaluation of a feature-based CAD model obtained by executable feature representations defined in the middle level. The mappings involved in the system comprise firstly, mapping between the top level feature representations associated with different viewpoints, for example for the geometric simplification and addition of boundary conditions associated with moving from a design model to an analysis model, and secondly mapping between the top level and the middle level representations in which the feature model is transformed into the executable representation. Because an executable representation is used as the intermediate layer, the low level evaluation can be active. The example will be implemented with an analysis model which is evaluated and for which results are output. This multi-level modelling approach will be investigated within the framework aimed for the design automation with a feature-based model.

Keywords

References

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