Interactive Shape Optimization with Design Elements

  • John Rasmussen
Conference paper
Part of the Lecture Notes in Engineering book series (LNENG, volume 42)


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.


Design Variable Optimization System Shape Optimization Mesh Generation Design Element 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • John Rasmussen
    • 1
  1. 1.Institute of Mechanical EngineeringUniversity of AalborgAalborg EastDenmark

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