Stability of rectangular plates in subsonic flow with various boundary conditions


Journal Article

2014 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. The aeroelastic stability of rectangular plates in subsonic flow is well documented in literature. For example, the stability of a cantilever plate with a clamped edge parallel to the flow is well understood due to the similarity of this system to an aircraft wing. However, an ongoing push for lighter aerospace structures and novel designs requires advancing the understanding of the aeroelastic stability of plates with nonconventional boundary condition combinations. This paper summarizes the aeroelastic theory and experimental results on the flutter and/or divergence mechanisms of a rectangular plate with different sets of structural boundary conditions. The theory combines a linear plate structural model with a three-dimensional vortex lattice aerodynamic mode to create a high-fidelity frequency domain aeroelastic model. The paper also discusses the development of a modular experimental test bed to test the different boundary conditions.Apair of well-understood boundary condition configurations acts as validation points, and then results of additional configurations that have not been extensively explored are presented. The results of this paper can be used to support the design efforts of projects involving plates or plate membranes. In addition, the paper adds to the fundamental understanding of plate aeroelasticity and provides experimental data for comparison and future validation. Copyright

Full Text

Duke Authors

Cited Authors

  • Gibbs, SC; Wang, I; Dowell, EH

Published Date

  • January 1, 2015

Published In

Volume / Issue

  • 52 / 2

Start / End Page

  • 439 - 451

International Standard Serial Number (ISSN)

  • 0021-8669

Digital Object Identifier (DOI)

  • 10.2514/1.C032738

Citation Source

  • Scopus