Non-Cylindrical Fuselage Structural Optimization of BWB Civil Aircraft


Article Preview

Blended-Wing-Body (BWB) civil aircraft possesses so light structure, high lift-drag ratio and low fuel burn that it has been an important topic of future civil aircraft. But internal pressure causes large bending stress instead of skin-membrane stress in BWB non-cylindrical fuselage. For 150 seats BWB fuselage, a composite 3-bay fuselage model is analyzed and two improved configurations of braced fuselage derivatives are designed in this paper. By optimization analysis, the optimized non-cylindrical fuselage structures are obtained in low bending stress and deformation condition, and optimized layer thicknesses ratio of composite material are presented. The optimization conclusions are very valuable and applicable for the fuselage structural design of BWB civil aircraft.



Key Engineering Materials (Volumes 474-476)

Edited by:

Garry Zhu






Y. J. Zhang and B. T. Wang, "Non-Cylindrical Fuselage Structural Optimization of BWB Civil Aircraft", Key Engineering Materials, Vols. 474-476, pp. 1736-1739, 2011

Online since:

April 2011




[1] Liebeck, R. H: Design of the Blended Wing Body Subsonic Transport. Journal of Aircraft Vol. 41 (2004), pp.10-25.

[2] Mukhopadhyay V.: Structural Concepts Study of Non-circular Fuselage Configurations. World Aviation Congress, Los Angeles, Calif. Oct. 22-24, (1996).

[3] Mukhopadhyay V., Sobieszczanski-Sobieski, J., Kosaka, I., Quinn, G., and Vanderplaats, G.: Analysis, Design and Optimization of Noncylindrical Fuselage for Blended-Wing-Body Vehicle. AIAA Journal Vol. 41 (2004), pp.925-930.

DOI: 10.2514/1.417

[4] F.J.J.M.M. Geuskens, S. Koussios, O.K. Bergsma, and A. Beukers: Non-Cylindrical Pressure Fuselages for Future Aircraft. AIAA Paper 2008-1907, (2008).

DOI: 10.2514/6.2008-1907

[5] Mukhopadhyay V.: Blended-wing-body Fuselage Structural Design for Weight Reduction. AIAA Paper 2005-2349, (2005).

DOI: 10.2514/6.2005-2349

[6] Maiorana Emanuele, Pellegrino Carlo, and Modena Claudio: Linear Buckling Analysis of Perforated Plates Subjected to Localised Symmetrical Load. Engineering Structures Vol. 30 (2006), pp.3151-3158.

DOI: 10.1016/j.engstruct.2008.04.024

[7] Ray, T., and Liew, K. M.: A Swarm Metaphor for Multiobjective Design Optimization. Engineering Optimization Vol. 34 (2002), pp.141-153.

DOI: 10.1080/03052150210915

In order to see related information, you need to Login.