Complex CAD surface shape design using semantic features

다국어 초록 (Multilingual Abstract)

To a large extent, the success of the product shape design depends on whether the geometric modeling systems can satisfy more andmore complicated design demands in the engineering field. This paper proposes a shape design method based on semantic features forcomplex CAD surface. By the proposed method, we can easily meet the complicated design requirements, since the semantic can effectivelyrepresent the design intent. We discussed three aspects in shape design using semantic features, which are semantic design demandsof the target surface, geometric constraints in accordance with semantic features, and surface shape deformation under the geometricconstraints, respectively. The basic semantic features of geometric models drive the deformation of the target surface shape bychanging the related constraint, and the desirable features are added to the CAD surface shape. The examples of the car shape design arepresented to verify the effectives of our method.

참고문헌 (Reference)

1 W. Welch, "Variational surface modeling" 26 (26): 157-166, 1992

2 W. Welch, "Variational surface modeling" 26 (26): 157-166, 1992

3 R. Dumitrescu, "Shape deformations with meaningful parameters and constraints" 362-366, 2004

4 B. Li, "Research on the methods of form semantic about the product design based on NURBS surface technology" 1214-1219, 2009

5 M. Botsch, "Polygon mesh processing" A K Peters/CRC Press 155-156, 2011

6 P. J. Nyirenda, "Numeric and curve parameters for freeform surface feature models" 40 (40): 839-851, 2008

7 L. Piegl, "Modifying the shape of rational B-splines, part 1:curves" 21 (21): 509-518, 1989

8 J. S. M. Vergeest, "Freeform surface copy and paste techniques for shape synthesis" 7 (7): 395-406, 2000

9 M. Pourazady, "Direct manipulations of NURBS surfaces subjected to geometric constraints" 30 (30): 598-609, 2006

10 M. Pourazady, "Direct manipulation of B-spline and NURBS curves" 31 (31): 107-118, 2000

11 G. Celniker, "Deformable curve and surface finite-elements for free-form shape design" 25 (25): 257-266, 1991

12 R. Greca, "Declarative approach to NURBS surface design: from semantic to geometric models" 161-168, 2004

13 G. E. Farin, "Curves and surfaces for CAGD" Morgan Kaufmann Publishers 195-196, 2002

14 M. Fuge, "Conceptual design and modification of freeform surfaces using dual shape representations in augmented reality environments" 44 (44): 1020-1032, 2012

15 P. D. Stefano, "An approach for feature semantics recognition in geometric models" 36 (36): 993-1009, 2003

16 Y. J. Lin, "A semantic feature model in concurrent engineering" 7 (7): 659-665, 2010

17 J. M. Zheng, "A new approach for direct manipulation of free-form curve" 17 (17): 327-334, 1998