Comparison of Theoretical and Multifidelity Optimum Aerostructural Solutions for Wing Design

2021 ◽  
pp. 1-14
Author(s):  
Jeffrey D. Taylor ◽  
Douglas F. Hunsaker
Keyword(s):  
Wing Design

APPLICATION OF THE MODEL OF VARIABLE DENSITY AT EARLY STAGES OF WING DESIGN

2011 ◽  
Vol 42 (1) ◽  
pp. 119-133
Author(s):  
V. A. Komarov ◽  
A. V. Boldyrev
Keyword(s):  
Variable Density ◽  
Wing Design ◽  
Early Stages

scholarly journals Multi-Objective Design Exploration and Its Application to Regional-Jet Wing Design

2007 ◽  
Vol 50 (167) ◽  
pp. 1-8 ◽  
Author(s):  
Shigeru OBAYASHI ◽  
Shinkyu JEONG ◽  
Kazuhisa CHIBA ◽  
Hiroyuki MORINO
Keyword(s):  
Wing Design ◽  
Design Exploration ◽  
Multi Objective

Active aeroelastic wing design for gust load alleviation and flutter suppression

1997 ◽  
Author(s):  
Changho Nam ◽  
Youdan Kim ◽  
Jeffrey Layton ◽  
Changho Nam ◽  
Youdan Kim ◽  
...  
Keyword(s):  
Wing Design ◽  
Flutter Suppression ◽  
Gust Load Alleviation

Integrated wing design with adaptive control surfaces

2001 ◽  
Author(s):  
Joseph Henderson ◽  
Terrence Weisshaar ◽  
Brian Sanders
Keyword(s):  
Adaptive Control ◽  
Wing Design ◽  
Control Surfaces

Influence of weight modelling on the outcome of wing design using multidisciplinary design optimisation techniques

2013 ◽  
Vol 117 (1195) ◽  
pp. 871-895 ◽  
Author(s):  
J. Mariens ◽  
A. Elham ◽  
M. J. L. van Tooren
Keyword(s):  
Estimation Method ◽  
Lower Class ◽  
Multidisciplinary Design ◽  
Estimation Methods ◽  
Computational Time ◽  
Weight Estimation ◽  
Wing Design ◽  
Design Optimisation ◽  
Multidisciplinary Design Optimisation ◽  
Optimisation Techniques

Abstract Weight estimation methods are categorised in different classes based on their level of fidelity. The lower class methods are based on statistical data, while higher class methods use physics based calculations. Statistical weight estimation methods are usually utilised in early design stages when the knowledge of designers about the new aircraft is limited. Higher class methods are applied in later design steps when the design is mature enough. Lower class methods are sometimes preferred in later design stages, even though the designers have enough knowledge about the design to use higher class methods. In high level multidisciplinary design optimisation (MDO) fidelity is often sacrificed to obtain models with shorter computation times. There is always a compromise required to select the proper weight estimation method for an MDO project. An investigation has been performed to study the effect of using different weight estimation methods, with low and medium levels of fidelity, on the results of a wing design using multidisciplinary design optimisation techniques. An MDO problem was formulated to design the wing planform of a typical turboprop and a turbofan passenger aircraft. The aircraft maximum take-off weight was selected as the objective function. A quasi-three-dimensional aerodynamic solver was developed to calculate the wing aerodynamic characteristics. Five various statistical methods and a quasi-analytical method are used to estimate the wing structural weight. These methods are compared to each other by analysing their accuracy and sensitivity to different design variables. The results of the optimisations showed that the optimum wing shape is affected by the method used to estimate the wing weight. Using different weight estimation methods also strongly affects the optimisation convergence history and computational time.

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