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SUMMARY:Multi-fidelity Simulation Modelling in Optimization of a Submarine
  Propulsion System - Arturo Molina Cristobal
DTSTART:20101124T160000Z
DTEND:20101124T170000Z
UID:TALK28060@talks.cam.ac.uk
CONTACT:Tiziano Ghisu
DESCRIPTION:An inherent trade-off exists in simulation model\ndevelopment 
 and use: a trade-off between the level of detail simulated and the simulat
 ion model's computational cost. It is often desirable to simulate a\nhigh 
 level of detail to a high degree of accuracy. However\, due to the nature 
 of design optimization\, which requires a large number of design\nevaluati
 ons\, the application of such simulation models can be prohibitively expen
 sive. This paper presents an optimization framework consisting of a\nserie
 s hybrid optimization algorithm\, in which a global search optimizes a sub
 marine propulsion system using low-fidelity models and\, in order to refin
 e\nthe results\, a local search is used with high-fidelity models.
LOCATION:Arthur Marshall Meeting Room (next to EDC loft)\, Inglis Building
 \, Engineering Department
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