Robust Structural Design for Active Aeroelastic Wing with Aerodynamic Uncertainties

View/ Open
Date
2000-04Author
Zink, Paul Scott
Raveh, Daniella E.
Mavris, Dimitri N.
Metadata
Show full item recordAbstract
A multidisciplinary design study for Active Aeroelastic Wing technology considering the uncertainty in maneuver loads estimated by linear aerodynamic theory is presented. The study makes use of a design of experiments/response surface methodology and modal-based structural optimization to construct deterministic relationships between wing structural weight and control laws design, based on linear aerodynamics. CFD Navier-Stokes analysis is then used to define typical differences between rigid aerodynamic loads as predicted by nonlinear and linear theory. These differences are then used to define aerodynamic uncertainties in a probabilistic manner, which are propagated, through Latin Hypercube Sampling and modal-based static aeroelastic analysis, to a response function that represents the magnitude of structural redesign. Structural designs then are sought that are both low weight and whose performance is relatively invariant in the presence of load uncertainty. The motivation for this study is derived by the frequent inability to accurately represent maneuver loads on an aircraft structure, which often requires redesign (sometimes major) late in the design process as loads predictions become more accurate.
Collections
Related items
Showing items related by title, author, creator and subject.
-
Enterprise design : extending product design to include manufacturing process design and organization design
Peplinski, Jesse D. (Georgia Institute of Technology, 1997-12) -
Supporting the design process of distributed and collocated multidisciplinary design teams through tag and thumbnail based organization of design documents
Powell, Natasha (Georgia Institute of Technology, 2010-08-31)In the multidisciplinary design process, design documents are used to help support a team's design and mediate any misunderstandings that occur. Current methods of organizing such design documents are either difficult to ... -
Computer-aided design for rapid tooling : methods for mold design and design-for-manufacture
Chen, Yong (Georgia Institute of Technology, 2001-08)