Touraj Farsadi, Majid Ahmadi, Hamed Haddad Khodaparast

DOI Number: N/A

Conference number: IFASD-2024-015

This paper introduces an approach to optimize high aspect ratio composite aircraft wings, aiming to enhance performance. Leveraging materials like carbon fiber and efficient
manufacturing techniques, these wings promise lighter aircraft and reduced fuel consumption. However, achieving these benefits requires addressing structural and aeroelastic constraints. The proposed method, aeroelastically tailored Multi-objective, Multi-disciplinary Design Optimization (MMDO), integrates numerical techniques, including Finite Element (FE) modeling and hybrid Particle Swarm Optimization (PSO) and Genetic Algorithm (GA) optimization methods, within the Nonlinear Aeroelastic Simulation Software (NAS2). The paper notably introduces a two-way coupling method for nonlinear static aeroelastic analysis, ensuring seamless integration between aerodynamic and structural solvers. This integration takes place within the NAS2 software framework, purpose-built for solving aeroelastic problems. Additionally, the Reduced Order Method (ROM) is employed to solve dynamic aeroelastic problems, including flutter and gust analysis. NAS2 serves as a reliable and efficient platform for coupling and automating diverse simulation codes, typically encompassing aerodynamics and structural mechanics, thus enabling precise simulation of the interaction between aerodynamics and structures. The present work considers critical factors such as buckling, static deformations, composite failure criteria, flutter and gust responses in optimizing highly flexible composite wings while addressing geometrically nonlinear deformation constraints.

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In Categories: 1. IFASD 2024, 1.Events, Highly Flexible Aircraft Structures
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