Feature modeling is nowadays the predominant way of product modeling. Functional and geometric information are stored in a single product model, consisting of features such as holes, slots, and ribs. An emerging technology is the application of concepts of feature modeling to freeform shapes. Of particular importance here is that there are often many validity conditions, or constraints, that the resulting freeform feature models should satisfy. An example of this is a maximum curvature constraint on the faces of a particular feature. This paper presents an approach to specify and maintain such validity conditions for freeform feature models.
1.
Shah
, J. J.
, and Mäntylä
, M.
, 1995, Parametric and Feature-Based CAD/CAM; Concepts, Techniques and Applications
, Wiley
, New York
.2.
Bidarra
, R.
, and Bronsvoort
, W. F.
, 2000, “Semantic Feature Modelling
,” Comput.-Aided Des.
0010-4485, 32
(3
), pp. 201
–225
.3.
van den Berg
, E.
, Bronsvoort
, W. F.
, and Vergeest
, J. S. M.
, 2002, “Freeform Feature Modelling: Concepts and Prospects
,” Comput. Ind.
, 49
(2
), pp. 217
–233
.4.
Piegl
, L.
, and Tiller
, W.
, 1997, The NURBS Book
, 2nd ed., Springer-Verlag
, Berlin
.5.
Poldermann
, B.
, and Horváth
, I.
, 1996, “Surface Design Based on Parametrized Surface Features
,” Proceedings of the International Symposium on Tools and Methods for Concurrent Engineering
, Budapest, Hungary
, May 29–31, pp. 432
–446
.6.
Fontana
, M.
, Giannini
, F.
, and Meirana
, M.
, 1999, “A Free Form Feature Taxonomy
,” Comput. Graph. Forum
1067-7055, 18
(3
), pp. 107
–118
.7.
Nyirenda
, P. J.
, Bronsvoort
, W. F.
, Langerak
, T.
, Song
, Y.
, and Vergeest
, J. S. M.
, 2005, “A Generic Taxonomy for Defining Freeform Feature Classes
,” Comput.-Aided Design and Applications
, 2
(1–4
), pp. 497
–506
.8.
Cavendish
, J. C.
, and Marin
, S. P.
, 1992, “A Procedural Feature-Based Approach for Designing Functional Surfaces
,” Topics in Surface Modeling
, Society for Industrial and Applied Mathematics, pp. 145
–168
.9.
van Elsas
, P. A.
, and Vergeest
, J. S. M.
, 1998, “Displacement Feature Modelling for Conceptual Design
,” Comput.-Aided Des.
0010-4485, 30
(1
), pp. 19
–27
.10.
Pernot
, J. -P.
, Guillet
, S.
, Léon
, J. -C.
, Falcidieno
, B.
, and Giannini
, F.
, 2004, “Multiminimisations for Shape Control of Fully Free-Form Deformation Features
,” Proceedings of Shape Modeling International 2004
, Genova, Italy
, Jun. 7–9, pp. 53
–62
.11.
Au
, C. K.
, and Yuen
, M. M. F.
, 2000, “A Semantic Feature Language for Sculptured Object Modelling
,” Comput.-Aided Des.
0010-4485, 32
(1
), pp. 63
–74
.12.
Vosniakos
, G.
, 1999, “Investigation of Feature-Based Shape Modelling for Mechanical Parts With Free Form Surfaces
,” Int. J. Adv. Manuf. Technol.
0268-3768, 15
(3
), pp. 188
–199
.13.
Bidarra
, R.
, de Kraker
, K. J.
, and Bronsvoort
, W. F.
, 1998, “Representation and Management of Feature Information in a Cellular Model
,” Comput.-Aided Des.
0010-4485, 30
(4
), pp. 301
–313
.14.
Bidarra
, R.
, Madeira
, J.
, Neels
, W. J.
, and Bronsvoort
, W. F.
, 2005, “Efficiency of Boundary Evaluation for a Cellular Model
,” Comput.-Aided Des.
0010-4485, 37
(12
), pp. 1266
–1284
.15.
Spatial Technology Inc.
, 2004, ACIS® 3D Modeling Kernel, Version R13, Westminster, CO.16.
van den Berg
, E.
, van der Meiden
, H. A.
, and Bronsvoort
, W. F.
, 2003, “Specification of Freeform Features
,” Proceedings of the Eighth ACM Symposium on Solid Modeling and Applications
, ACM
, Seattle, WA
, Jun. 16–20, pp. 56
–64
.17.
van der Meiden
, H. A.
, and Bronsvoort
, W. F.
, 2005, “An Efficient Method to Determine the Intended Solution for a System of Geometric Constraints
,” Int. J. Comput. Geom. Appl.
0218-1959, 15
(3
), pp. 279
–298
.18.
van den Berg
, E.
, Bidarra
, R.
, and Bronsvoort
, W. F.
, 2004, “Construction of Freeform Feature Models With Attachments
,” CD-ROM Proceedings of the ASME 2004 Design Engineering Technical Conferences and Design Automation Conference
, Salt Lake City, UT
, Sep. 28–Oct. 2.19.
van den Berg
, E.
, and Bronsvoort
, W. F.
, 2007, “Parameterised, Constraint-Based Wrapping of Freeform Shapes
,” Comput. Graph.
0097-8930, 31
(1
), pp. 89
–99
.20.
Zheng
, J.
, Wang
, G.
, and Liang
, Y.
, 1995, “GCn Continuity Conditions for Adjacent Rational Parametric Surfaces
,” Comput. Aided Geom. Des.
0167-8396, 12
(2
), pp. 111
–129
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