The role of requirements in conceptual aircraft design and their interactions with technologies and vehicle attributes

2001 ◽  
Author(s):  
Daniel Schrage ◽  
Dimitri Mavris ◽  
Andrew Baker
Keyword(s):  
Aircraft Design ◽  
Conceptual Aircraft Design

Environmental assessment of hybrid-electric propulsion in conceptual aircraft design

2020 ◽  
Vol 247 ◽  
pp. 119477 ◽  
Author(s):  
João Ribeiro ◽  
Frederico Afonso ◽  
Inês Ribeiro ◽  
Bruna Ferreira ◽  
Hugo Policarpo ◽  
...  
Keyword(s):  
Environmental Assessment ◽  
Electric Propulsion ◽  
Aircraft Design ◽  
Conceptual Aircraft Design ◽  
Hybrid Electric

scholarly journals Conceptual Advanced Transport Aircraft Design Configuration for Sustained Hypersonic Flight

Aerospace ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 91 ◽  
Author(s):  
Can Alkaya ◽  
Ashish Alex Sam ◽  
Apostolos Pesyridis
Keyword(s):  
Aircraft Design ◽  
Combined Cycle ◽  
Cfd Analysis ◽  
Conceptual Approach ◽  
Transport Aircraft ◽  
Hypersonic Flight ◽  
Hypersonic Aircraft ◽  
Conceptual Aircraft Design

The conceptual aircraft design and its integration with a combined cycle engine for hypersonic cruise at Mach 8 is documented in this paper. The paper describes the process taken to develop a hypersonic aircraft from a conceptual approach. The discussion also includes the design and CFD analysis of the integrated combined cycle engine. A final conceptual hypersonic transport aircraft with an integrated combined cycle engine was achieved through this study. According to the analysis carried out, the aircraft is able to take-off and land at the airports it is intended to be used and will be able to generate enough thrust to sustain hypersonic cruise at an altitude of 30 km.

The role of drag prediction in combat aircraft design and development

2008 ◽  
Vol 112 (1132) ◽  
pp. 327-332 ◽  
Author(s):  
J. B. Newton
Keyword(s):  
Structural Design ◽  
Wind Tunnel Test ◽  
Aircraft Design ◽  
Design And Development ◽  
Overall Design ◽  
Methods Development ◽  
Combat Aircraft ◽  
Future Challenges ◽  
Drag Prediction

Abstract This paper gives an overview of combat aircraft drag prediction in the context of the overall design and development process. Following a brief summary of the author’s experience in this field, the importance of drag prediction during initial configuration design is discussed, emphasising the need for the drag aerodynamicist to develop a good understanding of the other aerodynamic disciplines involved, as well as an appreciation of the of the total design process encompassing structural design, propulsion integration and systems installation. A brief description is given of typical simplified prediction methods used in initial design, followed by an example of drag synthesis procedures based on wind-tunnel test and analysis, illustrating the need for good understanding of test techniques and the requirements of other aerodynamic disciplines. Some future challenges are identified, requiring continual involvement in research and methods development programmes.

scholarly journals Crack Growth in a Range of Additively Manufactured Aerospace Structural Materials

Aerospace ◽  
2018 ◽  
Vol 5 (4) ◽  
pp. 118 ◽  
Author(s):  
Athanasios Iliopoulos ◽  
Rhys Jones ◽  
John Michopoulos ◽  
Nam Phan ◽  
R. Singh Raman
Keyword(s):  
Crack Growth ◽  
316L Stainless Steel ◽  
Tolerance Analysis ◽  
Aircraft Design ◽  
Mathematical Representation ◽  
Growth Equation ◽  
Operational Life ◽  
Load Carrying ◽  
Damage Tolerance Analysis

The aerospace industry is now beginning to adopt Additive Manufacturing (AM), both for new aircraft design and to help improve aircraft availability (aircraft sustainment). However, MIL-STD 1530 highlights that to certify airworthiness, the operational life of the airframe must be determined by a damage tolerance analysis. MIL-STD 1530 also states that in this process, the role of testing is merely to validate or correct the analysis. Consequently, if AM-produced parts are to be used as load-carrying members, it is important that the d a / d N versus ΔK curves be determined and, if possible, a valid mathematical representation determined. The present paper demonstrates that for AM Ti-6Al-4V, AM 316L stainless steel, and AM AerMet 100 steel, the d a / d N versus ΔK curves can be represented reasonably well by the Hartman-Schijve variant of the NASGRO crack growth equation. It is also shown that the variability in the various AM d a / d N versus Δ K curves is captured reasonably well by using the curve determined for conventionally manufactured materials and allowing for changes in the threshold and the cyclic fracture toughness terms.

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