Representation and management of feature information in a cellular model

Bidarra, Rafael; Kraker, Klaas Jan de; Bronsvoort, Willem F.

doi:10.1016/s0010-4485(97)00070-5

Cited by 96 publications

(46 citation statements)

References 3 publications

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“…3 shows some non-manifold cell complexes. Cellular Representation: Cellular representations have been used for identifying model simplification opportunities [Bida93,Bida98,Bida05,Gome93]. Cellular representations capture both positive and negative spatial regions, and may be viewed as curved voxelized spaces where the exact boundary representation is embedded in the cell boundaries.…”

Section: Terminologymentioning

confidence: 99%

“…Thus, a cell complex represents parts as a connected set of volumetric disjoint cells of arbitrary shape, and represents each feature as a connected subset of these cells [Bida98]. The cells defined above represent the part shape exactly.…”

Section: Terminologymentioning

confidence: 99%

“…In one of the earlier approaches, Bidarra et al discussed application of the concept of cellular complex for developing feature addition and removal operators from the cellular representation of a model [Bida98]. A feature model is partitioned into nonintersecting cells.…”

Section: Terminologymentioning

confidence: 99%

See 2 more Smart Citations

A survey of CAD model simplification techniques for physics-based simulation applications

Thakur

Banerjee

Gupta

2009

Computer-Aided Design

163

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Automated CAD model simplification plays an important role in effectively utilizing physicsbased simulation during the product realization process. Currently a rich body of literature exists that describe many successful techniques for fully-automatic or semi-automatic simplification of CAD models for a wide variety of applications. The purpose of this paper is to compile a list of the techniques that are relevant for physics-based simulations problems and to characterize them based on their attributes. We have classified them into the following four categories: techniques based on surface entity based operators, volume entity based operators, explicit feature based operators, and dimension reduction operators. This paper also presents the necessary background information in the CAD model representation to assist the new readers. We conclude the paper by outlining open research directions in this field.

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Section: Terminologymentioning

confidence: 99%

Section: Terminologymentioning

confidence: 99%

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A survey of CAD model simplification techniques for physics-based simulation applications

Thakur

Banerjee

Gupta

2009

Computer-Aided Design

163

View full text Add to dashboard Cite

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“…To keep track of the cell geometry, and ownership, we partly rely on the cellular topology component of ACIS [18]. A thorough description and discussion of the cellular model can be found in [19]. We use cellular models to store and query the original and the modified feature model.…”

Section: The Cellular Modelmentioning

confidence: 99%

Efficient tetrahedral remeshing of feature models for finite element analysis

Smit

Bronsvoort

2009

Engineering with Computers

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Finite element analysis is nowadays widely used for product testing. At various moments during the design phase, aspects of the physical behaviour of the product are simulated by performing an analysis of the model. For each analysis, a mesh needs to be created that represents the geometry of the model at that point. In particular during the later stages of the development cycle, often only minor modifications are made to a model between design iterations. In that case it can be beneficial to reuse part of the previous mesh, especially if it was costly to construct. A new method is presented that efficiently constructs a tetrahedral mesh based on a tetrahedral mesh of a feature model at an earlier point of the design cycle. This is done by analysing the difference of the two feature models from the point of view of the individual features. By this means we can find a natural correspondence between the geometries of the feature models, and relate this to the mesh of the earlier model. We discuss the algorithm, gained improvements, quality of the results, and conditions for this method to be effective.

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“…The SPIFF system maintains also a geometric model of the product in the so-called Cellular Model, and takes care of updating it as required by each modelling operation (Bidarra et al 1998). The Cellular Model is an evaluated representation of the feature model geometry, integrating the contributions from all features in the Feature Dependency Graph.…”

Section: Model Validity Maintenancementioning

confidence: 99%

Semantic and multiple-view feature modelling: towards more meaningful product modelling

Bronsvoort

Bidarra

Noort

2001

Geometric Modelling

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Abstract:Current feature modelling systems suffer from a number of shortcomings. One is that the meaning of features is often not adequately maintained during modelling, which implies that modelling is in essence only geometric modelling. Another is that it is not possible to support product models with multiple feature views for all product development phases. This paper discusses solutions for these shortcomings. Semantic feature modelling is an approach to specify and maintain the meaning, or semantics, of each feature in a model. Enhanced multiple-view feature modelling is an approach to support more product development phases. In the views, feature models can be used that contain high-level information. These approaches result in more meaningful product modelling, both in the sense of the models that are created, and in the sense of how these are created.

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Representation and management of feature information in a cellular model

Cited by 96 publications

References 3 publications

A survey of CAD model simplification techniques for physics-based simulation applications

A survey of CAD model simplification techniques for physics-based simulation applications

Efficient tetrahedral remeshing of feature models for finite element analysis

Semantic and multiple-view feature modelling: towards more meaningful product modelling

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