A Structural Design Concept for a Multi-Shell Blended Wing Body with Laminar Flow Control
- authored by
- Majeed Bishara, Peter Horst, Hinesh Madhusoodanan, Martin Brod, Benedikt Daum, Raimund Rolfes
- Abstract
Static and fatigue analyses are presented for a new blended wing body (BWB) fuselage concept considering laminar flow control (LFC) by boundary layer suction in order to reduce the aerodynamic drag. BWB aircraft design concepts profit from a structurally beneficial distribution of lift and weight and allow a better utilization of interior space over conventional layouts. A structurally efficient design concept for the pressurized BWB cabin is a vaulted layout that is, however, aerodynamically disadvantageous. A suitable remedy is a multi-shell design concept with a separate outer skin. The synergetic combination of such a multi-shell BWB fuselage with a LFC via perforation of the outer skin to attain a drag reduction appears promising. In this work, two relevant structural design aspects are considered. First, a numerical model for a ribbed double-shell design of a fuselage segment is analyzed. Second, fatigue aspects of the perforation in the outer skin are investigated. A design making use of controlled fiber orientation is proposed for the perforated skin. The fatigue behavior is compared to perforation methods with conventional fiber topologies and to configurations without perforations.
- Organisation(s)
-
Institute of Structural Analysis
- External Organisation(s)
-
Technische Universität Braunschweig
- Type
- Article
- Journal
- ENERGIES
- Volume
- 11
- ISSN
- 1996-1073
- Publication date
- 02.2018
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment, Energy Engineering and Power Technology, Energy (miscellaneous), Control and Optimization, Electrical and Electronic Engineering
- Sustainable Development Goals
- SDG 7 - Affordable and Clean Energy
- Electronic version(s)
-
https://doi.org/10.3390/en11020383 (Access:
Open)
https://doi.org/10.15488/3899 (Access: Open)
