Topic
Aeroelasticity
About: Aeroelasticity is a research topic. Over the lifetime, 7804 publications have been published within this topic receiving 122172 citations.
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TL;DR: In this article, the equations of motion of a two-dimensional airfoil oscillating in pitch and plunge are derived for a structural nonlinearity using subsonic aerodynamics theory.
421 citations
TL;DR: In this paper, the scaling laws and unsteady flow regime constraining both biological and man-made fliers have been reviewed and an explanation for aerodynamic gains seen in flexible versus rigid membrane wings, derived from a three-dimensional computational fluid dynamics model with an integrated distributed control algorithm, is presented.
412 citations
TL;DR: In this paper, the authors present a mathematical framework for assessing some important numerical properties of the chosen partitioned procedure, and predicting its performance for realistic applications based on the estimation of the energy that is artificially introduced at the fluid/structure interface by the staggering process.
405 citations
TL;DR: In this paper, an analytical design technique for an active fluttersuppression and gust-alleviation control system is presented based on a rational approximation of the unsteady aerodynamic loads in the entire Laplace domain, which yields matrix equations of motion with constant coefficients.
Abstract: An analytical design technique for an active flutter-suppression and gust-alleviation control system is presented. It is based on a rational approximation of the unsteady aerodynamic loads in the entire Laplace domain, which yields matrix equations of motion with constant coefficients. Some existing rational approximation schemes are reviewed, and a new technique which yields a minimal number of augmented states for a desired accuracy is presented. The state-space aeroelastic model is used to design a constant gain, partial-feedback control system, which simultaneously assures stability and optimizes any desired combination of gust response parameters throughout the entire flight envelope.
404 citations
TL;DR: In this paper, a second-order time-accurate and yet loosely-coupled partitioned procedure for the solution of nonlinear fluid-structure interaction (FSI) problems on moving grids is presented.
380 citations