Abstract
This paper describes an attempt to integrate a shape optimization system into a CAD-environment. Apart from a description of the initial geometry, the optimization task requires several items of additional information to be added. The geometry has to be converted into a finite element or a boundary element model with the proper loads and boundary conditions, the shape of which must be linked with a finite number of variables to allow for the use of a general mathematical programming technique. Finally, information on op-timization criteria must be added. These problems, among others, are solved very conveniently by creating a user specified optimization model of the geometry with the well known “design element” technique. By taking advantage of the highly developed interactive features of a typical CAD-system, the use of shape optimization becomes a natural part of the Computer Aided Design- process.
The technique is implemented in the shape optimization system CA0S which is presently working in connection with the AutoCAD system. A simple example is presented.
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References
J. A. Bennett & M. E. Botkin: Structural Shape Optimization with Geometric Description and Adaptive Mesh Refinement. AIAA Journal, vol. 23, no. 4, pp. 458 – 464, 1985.
Björn Esping: OASIS Structural Optimization System.Department of Aeronautical Structures and Materials, The Royal Institute of Technology, Stockholm, Sweden.
Hans Eschenauer: Numerical and Experimental Investigations on Structural Optimization of En-gineering Designs. Research Laboratory for Applied Structural Optimization at the Institute of Mechanics and Control Engineering, University of Siegen, Federal Republic of Germany.
C. Fleury: Computer Aided Optimal Design of Elastic Structures. C.A. Mota Soares (Ed.): Computer Aided Optimal Design: Structural and Mechani-cal Systems. NATO ASI Series F, Springer Verlag, 1987.
Yunliang Ding: Compendium. Shape Optimization of Structures: A Literature Survey. Computers and Structures. vol. 24, no. 6, pp. 985 - 1004, 1986.
Cheng Gengdong: A new Computation Scheme for Sensitivity Analysis. To appear, Eng. Opt.
B. Barthelemy & R. T. Haftka: Accuracy Analysis of the Semi-Analytical Method for Shape Sensitivity Calcula-tion. Lecture presented at the AIAA/ASME/ASCE 29th Structures, Structural Dynamics and Materials Conference, Williamsburg, Virginia, April 1988.
Pauli Pedersen, Gengdong Cheng & John Rasmussen: On Accuracy Problems for Semi-Analytical Sensitivity Analysis. DCAMM report no. 367. The Danish Center for Applied Mathematics and Mechanics, December 1987.
Claude Fleury & Vincent Braibant: Structural Optimization: A new Dual Method using Mixed Variables. International Journal for Numerical Methods in Engineering, vol. 23, pp. 409- 428, 1986.
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© 1989 Springer-Verlag Berlin, Heidelberg
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Rasmussen, J. (1989). Interactive Shape Optimization with Design Elements. In: Eschenauer, H.A., Thierauf, G. (eds) Discretization Methods and Structural Optimization — Procedures and Applications. Lecture Notes in Engineering, vol 42. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83707-4_36
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DOI: https://doi.org/10.1007/978-3-642-83707-4_36
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-50784-0
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