Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-27T14:04:24.841Z Has data issue: false hasContentIssue false

The use of topology optimisation in the conceptual design of next generation lattice composite aircraft fuselage structures

Published online by Cambridge University Press:  27 January 2016

S. Niemann*
Affiliation:
DLR, Braunschweig, Germany
B. Kolesnikov*
Affiliation:
DLR, Braunschweig, Germany
H. Lohse-Busch*
Affiliation:
DLR, Braunschweig, Germany
C. Hühne*
Affiliation:
DLR, Braunschweig, Germany
O. M. Querin*
Affiliation:
University of Leeds, Leeds, UK
V. V. Toropov*
Affiliation:
University of Leeds, Leeds, UK
D. Liu*
Affiliation:
University of Leeds, Leeds, UK

Abstract

Conventional commercial aircraft fuselages use all-aluminium semi-monocoque structures where the skin carries the external loads, the internal fuselage pressurisation and is strengthen using frames and stringers. Environmental and economic issues force aircraft designers to minimise weight and costs to keep air transport competitive and safe. But as metal designs have reached a high degree of perfection, extraordinary weight and cost savings are unlikely in the future. Carbon composite materials combined with lattice structures and the use of topology optimisation have the potential to offer such weight reductions. The EU FP7 project Advanced Lattice Structures for Composite Airframes (ALaSCA) was started to investigate this. This article present some of this research which has now led to the development of a new airframe concept which consists of: a load carrying inner skin; transverse frames; CFRP-metal hybrid stiffeners helically arranged in a grid configuration; insulating foam and an additional aerodynamic outer skin.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Bruhn, E.F. Analysis and Design of Flight Vehicle Structures, Jacobs Publishing Inc, 1973.Google Scholar
2. Shanygin, A., Fomin, V. and Kondakov, I. Designing Pro-Composite Aircraft Concepts and Layouts to Maximise Potential Benefts of High Specific Strength of CFRP, 28th Congress of the International Council of the Aeronautical Sciences, 23–28 September 2012, Brisbane, Australia, Paper: ICAS 2012-1.7.3.Google Scholar
3. Vasiliev, V.V. and Razin, A.F. Anisogrid composite lattice structures for spacecraft and aircraft applications, Composite Structures, October 2006, 76, (1–2), pp 182189.Google Scholar
4. Daniel, I.M. and Ishai, O. Engineering Mechanics of Composite Materials, Oxford University Press, 2nd ed, 2005.Google Scholar
6. Vasiliev, V.V., Barynin, V.A. and Razin, A.F. Anisogrid lattice structures – survey of development and application, Composite Structures, November–December 2001, 54, (2–3), pp 361370.Google Scholar
7. Vasiliev, V.V., Barynin, V.A. and Razin, A.F. Anisogrid composite lattice structures – Development and aerospace applications, Composite Structures, February 2012, 94, (3), pp 11171127.Google Scholar
8. Herbeck, L., Wilmes, H.R., Kolesnikov, B. and Kleineberg, M. Technology and design development for a CFRP fuselage. In 25th SAMPE Europe Conference, Paris, France, 2003.Google Scholar
9. Wilmes, H., Kolesnikov, B., Fink, A. and Kindervater, C. New design concepts for a CFRP fuselage. In Workshop at German Aerospace Centre (DLR) on Final Project of Black Fuselage, Braunschweig, Germany, 2002.Google Scholar
10. EU Research Project, Advanced Lattice Structures for Composite Airframes (ALasCA), Project Reference: 265881, 2010 – 2013, Available: http://eu-project.vc/cordis-news/eu-research-projects-37. html (Accessed 18/07/2013).Google Scholar
11. Seitz, A., Kruse, M., Wunderlich, T., Bold, J. and Heinrich, L. The DLR Project LamAiR: Design of a NLF Forward Swept Wing for Short and Medium Range Transport Application, 29th AIAA Applied Aerodynamics Conference, June 2011, AIAA 2011-3526.Google Scholar
12. Gerhold, T. Overview of the hybrid RANS TAU-Code, Notes on Multidisciplinary Design, 2005, 89, pp 8192.Google Scholar
13. Bendsøe, M. and Sigmund, O. Topology Optimization: Theory, Methods and Applications, Springer, 2003.Google Scholar
14. Altair OptiStruct19, (Online). Available: http://www.altairhyperworks.com/Product, 19,OptiStruct.aspx. (Accessed 18/07/2013).Google Scholar
15. Meyer, R.W. Handbook of Pultrusion Technology, Chapman and Hall, 1985.Google Scholar
17. Tan, H.K.V., Bettess, P. and Bettess, J.A. Elastic buckling of isotropic triangular flat plates by finite elements, Applied Mathematical Modelling, October 1983, 7, (5), pp 311316.Google Scholar
18. Stefaniak, D., Kolesnikov, B. and Kappel, E. Improving impact endangered CFRP structures by metal-hybridisation, Proceedings of 12th European Conference on Spacecraft Structures, Materials and Environmental Testing, European Space Agency, (Special Publication) ESA SP, v 691 SP, 2012.Google Scholar
19. Wiedemann, M., Sinapius, M. and Melcher, J. Innovation Report, Institute of Composite Structures and Adaptive Systems, DLR, Germany, 2012.Google Scholar
20. MSC Software. Simulating Reality, Delivering Certainty, (Online. Available: http://www.mscsoftware.com/ (Accessed 19/07/2013).Google Scholar
21. Rohasell-on-Line. (Online. Available: http://www.rohasell-on-line.com/products.html (Accessed 23/07/2013).Google Scholar