Automatic generation of quadrilateral mapping elements and applicability of shape optimization software
Abstract
One of the problems preventing structural shape optimization software from industry-wide use is its inability to describe and construct design models, optimization models and analysis models in terms of natural design variables and implement transformation between the three. This paper addresses the difficulty in the context of applicability of computer software. A method is presented to define the structure's boundary of plane continuum that is modified dynamically during the process of shape optimization. Heuristic rules and techniques from artificial intelligence are applied to generate the geometric model described by the design element method, i.e., to subdivide the structure into large quadrilateral mapping elements which are necessary for further mesh generation. It is one of the important steps toward a fully automatic computer-aided shape optimization system.
- Publication:
-
Computers and Structures
- Pub Date:
- November 1992
- Bibcode:
- 1992CoStr..45..697Z
- Keywords:
-
- Computer Aided Design;
- Computer Programs;
- Finite Element Method;
- Grid Generation (Mathematics);
- Heuristic Methods;
- Optimization;
- Computational Grids;
- Independent Variables;
- Parameterization;
- Transformations (Mathematics);
- Structural Mechanics