Distributed Design Optimization of Large Aspect Ratio Wing Aircraft with Rapid Transonic Flutter Analysis in Linux

Khan, Kamrul Hasan; Mallik, Wrik; Kapania, Rakesh K.; Schetz, Joseph A.

doi:10.2514/6.2021-1354

Cited by 8 publications

(7 citation statements)

References 20 publications

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“…The optimization constraints include the design variables' bounds and the top-level aircraft requirements. The optimization problem is defined as: (13) where h and g are equality and inequality constraints determined by the top-level aircraft requirements…”

Section: Fig 7 Illustration Of the Configurations Studied In This Workmentioning

confidence: 99%

“…The SUGAR project conducted a comprehensive study of the SBW configuration for the next generation of Medium-Range (MR) missions [12]. Virginia Polytechnic and State University performed conceptual design and optimization research for a long-range SBW aircraft [13]. Carrier et al [14] are researching an overall aircraft conceptual design framework for SBW aircraft that combines high-fidelity aerodynamic and structural analysis.…”

Section: Introductionmentioning

confidence: 99%

“…NASA is funding research on aerodynamic optimization and aeroelastic analysis for SBW aircraft [15,16]. Although there are studies on SBW aircraft's aerodynamic optimization [8,16,17] and Multidisciplinary Design Optimization (MDO) [13,18,19], there is a need for the mid-fidelity wing aerostructural analysis and optimization method of SBW aircraft that computes the wing drag and structural deformation with a level of accuracy comparable to the higher fidelity methods in early design stages, where the wing structure data are not sufficient for high-fidelity analysis and optimization.…”

Section: Introductionmentioning

confidence: 99%

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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 7 Illustration Of the Configurations Studied In This Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Abouhamzeh

Elham

2023

Journal of Aircraft

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“…Similar to the MR mission, several reference passenger aircraft designed for the next-generation LR mission was selected for reference and comparison, including aircraft [13], H3.2 aircraft Centerline aircraft [40], and DisPURSAL aircraft [41]. B777-300ER was selected as the baseline aircraft for the LR mission.…”

Section: Initial Aircraft Sizingmentioning

confidence: 99%

“…For example, the SUGAR project did a comprehensive study on the MR-SBW passenger aircraft, but it focused only on the SBW concept and did not consider short-range (SR) and long-range (LR) missions. Virginia Polytechnic and State University [13] conducted the conceptual design and optimization research for a long-range SBW passenger aircraft in the same manner. Besides, there is few comprehensive research on TF passenger aircraft that has been published.…”

Section: Introductionmentioning

confidence: 99%

Conceptual design and comparative study of strut-braced wing and twin-fuselage aircraft configurations with ultra-high aspect ratio wings

Karpuk

Elham

2021

Aiaa Aviation 2021 Forum

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Ultra-high aspect ratio wing Strut-braced wing Twin-fuselage Advanced airframe technology Conceptual designSustainable and fuel-efficient next-generation air transportation demands a step change in aircraft performance. The ultra-high aspect ratio wings (UHARW) configuration is one key enabling strategy for improving aircraft aerodynamic efficiency and reducing fuel consumption and emissions. Unconventional aircraft configurations and advanced airframe technologies are required to address the large bending moment and shear stresses in the UHARW structure. This paper considers two promising unconventional configurations for adopting UHARW design, including strut-braced-wing (SBW) and twin-fuselage (TF), with advanced airframe technologies, i.e., active flow control, active load alleviation, and advanced airframe structures and materials. Three typical missions, including short-range (SR), medium-range (MR), and long-range (LR), are considered for aircraft design. A conceptual design and performance analysis framework for SBW and TF configurations is developed in this paper. According to the mission profile and top-level requirements proposed for each mission, an SBW and a TF configuration are designed, respectively. A comparative study is carried out to determine the best-in-class configuration of the corresponding mission to evaluate the potential of SBW and TF configurations for next-generation sustainable aviation applications. The results showed that the TF configuration has a better wing weight reduction effect than the SBW configuration, and the MR-TF and LR-TF aircraft have lower takeoff weight and fuel weight than those of the SBW aircraft for the same mission. However, due to the adjustment of the cabin dimensions for the SR-TF aircraft, the SBW configuration outperforms the TF configuration in this mission.

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Comparative study of recent metaheuristics for solving a multiobjective transonic aeroelastic optimization of a composite wing

Wansasueb,

Panagant,

Bureerat

et al. 2023

Acta Mech

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Distributed Design Optimization of Large Aspect Ratio Wing Aircraft with Rapid Transonic Flutter Analysis in Linux

Cited by 8 publications

References 20 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

Conceptual design and comparative study of strut-braced wing and twin-fuselage aircraft configurations with ultra-high aspect ratio wings

Comparative study of recent metaheuristics for solving a multiobjective transonic aeroelastic optimization of a composite wing

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