COMPUTATIONAL STUDY OF CANTILEVERED PLATE IN HIGH SPEED AXIAL FLOW

A cantilevered plate at an angle of attack in axial high speed flow represents a prototypical control surface. Using a computationally efficient modal structural model coupled with a novel enhanced piston theory aerodynamic method, a nonlinear aeroelastic model is developed. Results presented include pre-flutter stable steady state solutions, flutter points, and post-flutter limit cycle oscillations. Because of the computationally efficient methodology, many simulations can be run to define sensitivities to mathematical modeling, model parameters, and numerical methods.

Duke Scholars

Author Earl H. Dowell Thomas Lord Department of Mechanical Engineering and Materia ...