A case for multi-level optimisation in aeronautical design
| Autor: | G. M. Robinson, Andy J. Keane |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Optimal design
020301 aerospace & aeronautics Engineering Engineering drawing business.industry Design tool Aerospace Engineering 02 engineering and technology Aerodynamics Computational fluid dynamics 01 natural sciences 010305 fluids & plasmas Task (project management) Multigrid method 0203 mechanical engineering Range (aeronautics) 0103 physical sciences Code (cryptography) Systems engineering business |
| Zdroj: | The Aeronautical Journal. 103:481-485 |
| ISSN: | 2059-6464 0001-9240 |
| DOI: | 10.1017/s0001924000064435 |
| Popis: | This paper discusses how the inevitable limitations of computing power available to designers has restricted adoption of optimisation as an essential design tool. It is argued that this situation will continue until optimisation algorithms are developed which utilise the range of available analysis methods in a manner more like human designers. The concept of multi-level algorithms is introduced and a case made for their adoption as the way forward. The issues to be addressed in the development of multi-level algorithms are highlighted.The paper goes on to discuss a system developed at Southampton University to act as a test bed for multi-level algorithms deployed on a realistic design task. The Southampton University multi-level wing design environment integrates drag estimation algorithms ranging from an empirical code to an Euler CFD code, covering a 150,000 fold difference in computational cost. A simple multi-level optimisation of a civil transport aircraft wing is presented. |
| Databáze: | OpenAIRE |
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