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Bridging the gap between CAD and CAE using STL files  

Bianconi, Francesco (Department of Industrial Engineering, University of Perugia)
Publication Information
International Journal of CAD/CAM / v.2, no.1, 2002 , pp. 55-67 More about this Journal
Abstract
In many areas of industry, it is desirable to have fast and reliable systems in order to quickly obtain suitable solid models for computer- aided analyses. Nevertheless it is well known that the data exchange process between CAD modelers and CAE packages can require significative efforts. This paper presents an approach for geometrical data exchange through triangulated boundary models. The proposed framework is founded on the use of STL file specification as neutral format file. This work is principally focused on data exchange among CAD modelers and FEA packages via STL. The proposed approach involves the definition of a topological structure suitable for the STL representation and the development of algorithms for topology and geometry data processing in order to get a solid model suitable for finite element analysis or other computer aided engineering purposes. Different algorithms for model processing are considered and their pros and cons are discussed. As a case study, a prototype modeler which supports an exporting filter for a commercial CAE package has been implemented.
Keywords
data exchange; mesh geometry processing; CAD/CAE; solid construction STL;
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1 C. McMahon and J. Browne (1998), CAD/CAM principles, practice and manufacturing management. Addison-Wesley
2 G. Barequet and Y. Kaplan (1998), A data front-end for layered manufacturing. Computer-Aided Design, 30(4), 231-243
3 ANSYInc. Ansys (R) Help System Release 5.5.1, 1998
4 G. Barequet and M. Sharir (1995), Filling Gaps in the Boundary of a Polyhedron. Computer-Aided Geometric Design, 12(2), 207-229
5 Y.H Chen and C.T. Ng (1997), Integrated Reverse Engineering and Rapid Prototyping. Computers & Industrial Engineering, 33(3-4), 481-484
6 R. Courant and H. Robbins (1941), What is Mathematics ? An Elementary Approach to Ideas and Methods. Oxford University Press
7 L. et al. Li (2002), A reverse engineering system for rapid manufacturing of complex objects. Robotics and Computer Integrated Manufacturing, 18(1),53-67
8 SA McMains (2000), Geometric Algorithms and Data Representation for Solid Freeform Fabrication. PhD thesis, University of California, Berkeley: Doctoral Program in Computer Science
9 P.F. Jacobs (1996), Stereolitography and other RP&M Technologies. ASME Press
10 O. Volpin, A. Sheffer, M. Bercovier, and L. Joskowicz (1998), Mesh simplification with smooth surface reconstruction. Computer-Aided Design, 30(11), 875-882   DOI   ScienceOn
11 S.J. Rock and M.J. Wozny (1992), Generating topological informations from a bucket of facets. In Solid Freeform Fabrication Symposium, pages 251-259, Austin, TX
12 F. Bianconi and P. Conti (1999), A method for consistency check and visualization of STL files. In Xl ADM International Conference on Design Tools and Methods in Industrial Engineering, volume D, pages 5158, Palermo, Italy
13 H.L. De Cougny and M.S. Shepard (1999), Parallel Refinement and Coarsening of Tetrahedral Meshes. Int. Journal of Numerical Methods in Engineering, 46, 1101-1125
14 P. Cignoni, C. Montani, C. Scopigno, and R. Rocchini (1998), A comparison of mesh simplification algorithms, Computers & Graphics, 22(1), 37-54
15 T. Sakkalis, G. Shen, and N.M. Patrikalakis (2000), Representational validity of boundary representation models. Computer-Aided Design, 32(12), 719-726
16 E. Angel (1999), Interactive Computer Graphics: a topdown approach with OpenGL. Addison-Wesley
17 G. Barequet and S. Kumar (1997), Repairing CAD Models. In IEEE Visualization '97, Phoenix, AZ.
18 P. Cignoni, C. Montani, and Scopigno R. Zeta (1998), a Resolution Modeling System. GMIP: Graphical Models and Image Processing, 60(5), 305-329
19 A.E. Uva, G. Monno, and B. Hamann (1998), A New Method for the Repair ofCAD Data with Discontinuities. In II Italian-Spanish Seminar on Design and Feasibility of Industrial Products, pages 59-73, Vico Equense (NA), Italy
20 S.J. Rock and M.J. Wozny (1991), A flexible file format for solid freeform fabrication. In Solid Freeform Fabrication Symposium, pages 1-12, Austin, TX
21 F. Bianconi (2001), On the topology and geometry recognition in triangulated boundary models. In FEATS2001 - International IFIP Conference, Valenciennes, France, June
22 Y.H. Chen and Y.Z. Wang (1999), Genetic algorithms for re-triangulation in the context of reverse engineering Computer-Aided Design, 31(4), 261-271
23 M. Mantyla and J.J. Shah (1995), Parametric and Feature-Based CAD/CAM. Wiley Interscience
24 L. Kunwoo (1999), Principles of CAD/CAM/CAE Systems. Addison Wesley
25 Seok-Hee Lee, Ho-Chan Kim, Sung-Min Hur, and Dong-Yol Yang (2002), STL file generation from measured point data by segmentation and Delaunay triangulation. Computer-Aided Design, 34(10), 691-704
26 E. Becher, J.C Cuilliere, and F. Trochu (2002), Generation of a finite element MESH from stereolitography (STL) files. Computer-Aided Design, 34(1), 1-17
27 H. Park and K. Kim (1995), An adaptive method for smooth surface approximation to scattered 3D points. Computer-Aided Design, 27(12), 929-939
28 M. Woo, J. Neider, and T. Davis (1997), OpenGL programming guide. Addison-Wesley
29 M. Martorelli and S. Patalano (1998), Sulle carattestiche di precisione del processo stereolitografico. In I1 ItalianSpanish Seminar on Design and Feasibility of Industrial Products, pages 177-186, VicoEquense (NA), Italy