Details
| Original language | English |
|---|---|
| Article number | 383 |
| Journal | ENERGIES |
| Volume | 11 |
| Issue number | 2 |
| Early online date | 7 Feb 2018 |
| Publication status | Published - Feb 2018 |
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.
Keywords
- Blended wing body, Controlled fiber placement, Damage model, Degradation, Fatigue, Fiber-reinforced plastics, Multi-bubble fuselage, Structural analysis
ASJC Scopus subject areas
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Energy(all)
- Energy Engineering and Power Technology
- Energy(all)
- Energy (miscellaneous)
- Mathematics(all)
- Control and Optimization
- Engineering(all)
- Electrical and Electronic Engineering
Sustainable Development Goals
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In: ENERGIES, Vol. 11, No. 2, 383, 02.2018.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A Structural Design Concept for a Multi-Shell Blended Wing Body with Laminar Flow Control
AU - Bishara, Majeed
AU - Horst, Peter
AU - Madhusoodanan, Hinesh
AU - Brod, Martin
AU - Daum, Benedikt
AU - Rolfes, Raimund
N1 - Funding information: Acknowledgments: The authors would like to acknowledge the support of ir. Eelco Jansen and would like to express their gratitude for his comments. The authors would also like to acknowledge the support of the Ministry for Science and Culture of Lower Saxony (Grant No. VWZN3177) for funding the research project “Energy System Transformation in Aviation” in the initiative “Niedersächsisches Vorab”.
PY - 2018/2
Y1 - 2018/2
N2 - 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.
AB - 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.
KW - Blended wing body
KW - Controlled fiber placement
KW - Damage model
KW - Degradation
KW - Fatigue
KW - Fiber-reinforced plastics
KW - Multi-bubble fuselage
KW - Structural analysis
UR - http://www.scopus.com/inward/record.url?scp=85054847139&partnerID=8YFLogxK
U2 - 10.3390/en11020383
DO - 10.3390/en11020383
M3 - Article
AN - SCOPUS:85054847139
VL - 11
JO - ENERGIES
JF - ENERGIES
SN - 1996-1073
IS - 2
M1 - 383
ER -