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The influence on optimal structural designs of the modelling processes and design concepts

Part 1: All composite, sandwich wing design concepts

Published online by Cambridge University Press:  04 July 2016

P. T. Anastasiadis
Affiliation:
Hellenic Aerospace Industry, Tanagra, Greece
A. J. Morris
Affiliation:
Department of Aerospace Science, College of Aeronautics, Cranfield University, UK

Abstract

The paper examines the influence on optimal structural designs of changing the finite element selection, the structural design criteria and the design concepts for an unmanned air-vehicle wing. Thus, single and twin-spar designs are considered with a number of composite design configurations. The results indicate that some of the design criteria have little influence on the optimal designs whilst finite element selection can be significant.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 1996 

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References

1. Krammer, J. Practical architecture of design optimisation software for aircraft structures taking the MBB-Lagrange code as an example, AGARD-LS-186, Agard, Paris, May 1992, pp 21 to 2-16.Google Scholar
2. Cornault, C. and Petiau, C. Structural optimisation of aircraft, AGARD-LS-186, Agard, Paris, France, May 1992, pp 31 to 3-17.Google Scholar
3. Sobieski, J. Multidisciplinary design and optimisation, AGARD-LS-186, Agard, Paris, France, May 1992, pp 41 to 4-15.Google Scholar
4. Kellerer, H. Influence of structural modelling and design variable linking on the results of structural optimisation of a wingbox structure under stress constraints, Diplomarbeit, Technische University, Munchen, July 1992.Google Scholar
5. IBM/Caeds(V3R1M1), Computer aided engineering design system, IBM Corporation, Los Angeles, U.S.A.Google Scholar
6. MSC/Nastran(V67.5), The MacNeal-Schwendler Corporation, Los Angeles, USA.Google Scholar
7. Dobler, W., Erl, P. and Rapp, H. Optimization of sandwich structures with respect to local instabilities with MBB-Lagrange, Presented at the NATO/DFG Advanced Study Institute, Berchtesgaten, Germany, 23 Sept-4 Oct 1991.Google Scholar