Aerostructural wing design optimization considering full mission analysis

Adler, Eytan J.; Martins, Joaquim R. R. A.

doi:10.2514/6.2022-0382

Cited by 6 publications

(1 citation statement)

References 14 publications

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“…It should be mentioned that only a single point in the cruise segment (midpoint) is considered in this work, as a recent study by Adler and Martins [67] showed that the difference in fuel consumption between single-point and multi-point optimization results was less than 0.05% for a B737-800-like aircraft with mission ranges greater than 2900 nm.…”

Section: Fig 11 Schematic Of the Mr-sbw Aircraft Wingmentioning

confidence: 99%

Geometrically Nonlinear Coupled Adjoint Aerostructural Optimization of Natural-Laminar-Flow Strut-Braced Wing

Abouhamzeh

Elham

2023

Journal of Aircraft

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Novel aircraft concepts employing ultrahigh-aspect-ratio wings, such as the strut-braced wing (SBW) configuration, are promising ways to achieve the next-generation sustainable and fuel-efficient aviation goals. However, as the wing aspect ratio increases, the wing increasingly exhibits more flexibility, higher deformation, and geometrically nonlinear behavior that cannot be accurately simulated by conventional sizing methods and typical linear structural analysis models. This paper establishes a framework for SBW aircraft conceptual design, conceptual optimization, and aerostructural optimization. The presented aerostructural optimization method has medium-fidelity and physics-based features. A geometrically nonlinear structural analysis solver and a quasi-three-dimensional aerodynamic solver are coupled for the aerostructural optimization of composite natural-laminar-flow SBW aircraft. A medium-range (MR)-SBW aircraft is initially designed and optimized in the conceptual design stage. A gradient-based aerostructural optimization is performed using the proposed tool for minimizing the fuel mass of the initially sized and optimized MR-SBW aircraft. The optimization results in a more than 10% reduction in fuel mass, a more than 8% reduction in aircraft maximum takeoff mass, and a more than 30% reduction in wing and strut structural weight by optimizing the wing box structure, the wing planform, and the airfoil shape while satisfying the constraints on structural failure, wing loading, and aileron effectiveness.

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Section: Fig 11 Schematic Of the Mr-sbw Aircraft Wingmentioning

confidence: 99%

Geometrically Nonlinear Coupled Adjoint Aerostructural Optimization of Natural-Laminar-Flow Strut-Braced Wing

Abouhamzeh

Elham

2023

Journal of Aircraft

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Gust and Maneuver Load Alleviation in Conceptual Aircraft Design

Krengel,

Hepperle

2023

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Structural wing optimisation targeting economical mission performance of a passenger aircraft

Rechtik

Daoud

2023

Aeronaut. j.

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In an aircraft design, optimisation has become a common practice, especially when structural and aerodynamics interactions are considered. Performance measures often used in an industrial setting include structural weight, drag, lift to drag ratio, fuel burn or maximum range. It is a common practice to evaluate such performance indicators only on a handful of sample points. To achieve a truly economical aircraft design it is necessary to include a fully integrated mission analysis during a multidisciplinary structural optimisation, as there is a strong coupling between a flight behaviour and actual operational conditions of an aircraft. This paper makes a case for a modular approach to a mission analysis implementation that could utilise a variety of physical models and their combinations, offsetting some of the computational demands related to a fully integrated mission analysis and allowing to focus resources where they are needed.

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Aerostructural wing design optimization considering full mission analysis

Cited by 6 publications

References 14 publications

Geometrically Nonlinear Coupled Adjoint Aerostructural Optimization of Natural-Laminar-Flow Strut-Braced Wing

Geometrically Nonlinear Coupled Adjoint Aerostructural Optimization of Natural-Laminar-Flow Strut-Braced Wing

Gust and Maneuver Load Alleviation in Conceptual Aircraft Design

Structural wing optimisation targeting economical mission performance of a passenger aircraft

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