Aeroelasticity & Structural Dynamics in a Fast Changing World
17 – 21 June 2024, The Hague, The Netherlands
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Including Gradient-based Transient Gust Optimization in ASTROS


Go-down ifasd2024 Tracking Number 12

Presentation:
Session: Aeroelastic optimisation 2
Room: Room 1.1
Session start: 11:00 Tue 18 Jun 2024

Joshua Deslich   joshua.deslich.ctr@us.af.mil
Affifliation: United States Air Force Research Laboratory

Doug Neill   doug.neill@icmedesign.com
Affifliation: ICME Design

Kevin McHugh   kevin.mchugh.3@us.af.mil
Affifliation: United States Air Force Research Laboratory

Raymond Kolonay   raymond.kolonay@us.af.mil
Affifliation: United States Air Force Research Laboratory


Topics: - Steady/Unsteady Aerodynamics (High and low fidelity (un)coupled analysis methods:), - Computational Aeroelasticity (High and low fidelity (un)coupled analysis methods:), - Dynamic Loads (High and low fidelity (un)coupled analysis methods:)

Abstract:

Recent advancements in conceptual and preliminary air vehicle design seek to inject higher-fidelity analyses into early design processes to capture physics-based aircraft performance as soon as possible in the design cycle. This philosophy is often realized in the form of high-fidelity coupled aeroelastic or aeroservoelastic design via analysis including quasisteady maneuver behavior or flutter. However, there are relatively few efforts to include transient aeroelastic solutions in design, and those cases are limited in the context of a conceptual design process. This work seeks to leverage an existing aeroelastic solver, ASTROS, and enhance the design capability to include analytical stress gradients for designing a high aspect ratio wing under transient gust stress constraints. Previous development of ASTROS has excluded transient gusts from optimization due to computational cost and was primarily used for checking final designs. Including gust analysis in the early stages of aeroelastic conceptual design could mitigate late-stage redesigns to account for gust loads certification.