Space mapping for engineering optimization

  • Madsen, Kaj (Project Manager)
  • Nielsen, Hans Bruun (Project Participant)
  • Søndergaard, Jacob (Project Participant)
  • Pedersen, Frank Ørbech (Project Participant)
  • Bakr, Mohamed (Project Participant)
  • Bandler, John (Project Participant)
  • Cheng, Qingsha (Project Participant)
  • Gebre-Mariam, Daniel (Project Participant)
  • Mohamed, Ahmed (Project Participant)

Project Details

Description

The space mapping technique is intended for optimization of engineering
models which involve very expensive function evaluations. It is assumed
that two different models of the same physical system are available:
Besides the expensive model of primary interest (denoted the fine model), access to a cheaper (coarse) model is assumed which may be less accurate.
The main idea of the space mapping technique is to use the coarse model
to gain information about the fine model, and to apply this in the search for an optimal solution of the latter. Thus the technique iteratively establishes a mapping between the parameters of the two models which relate similar model responses. Having this mapping, most of the model evaluations can be directed to the fast coarse model.
In many cases this technique quickly provides an approximate optimal
solution to the fine model that is sufficiently accurate for engineering purposes. Thus the space mapping technique may be considered a preprocessing technique that perhaps must be succeeded by use of classical optimization techniques.
StatusActive
Effective start/end date01/01/1993 → …