Panel flutter is a dynamic aeroelastic instability of external skin panels exposed to supersonic airflow. Coupled aeroelastic analysis reveals that attaching an acoustic black hole (ABH) structure to ...

ABSTRACT A mathematic rotating blade model is introduced in conjunction with periodic time-varying aerodynamic load, which is described by Beddoes-Leishman dynamic stall model. The consequent ...

The effects of a freeplay structural nonlinearity on an aeroelastic system are studied experimentally. Particular attention is paid to the stability of a periodic nonlinear aeroelastic response, known ...

Determining ‘limited instability range’ in structures which are in direct touch with fluids is of utmost importance and “the interaction of the two at certain speeds causes a type of unsteadiness, ...

Aeroelastic control systems represent a critical intersection between aerodynamic theory and structural dynamics, addressing the complex interactions that give rise to flutter – a self-excited ...

After more than three years in development, a team of U.S. Army researchers and industry partners completed the construction of a testbed that will help to inform the design of future Army rotorcraft.

In order to enhance aircraft efficiency designers are increasingly utilizing lightweight, high aspect ratio wing designs. This is because lower weight means less energy is required to keep the ...

A new tiltrotor testbed that the US Army recently finished building will help the service tackle the dangerous whirl flutter phenomenon found in tiltrotors. The TiltRotor Aeroelastic Stability Testbed ...

HAMPTON, Va. -- The U.S. Army is developing a new wind-tunnel testbed that will help future tiltrotor aircraft attain higher speeds, improved stability and enhanced safety. At a massive wind tunnel at ...

NORFOLK, Va. -- After more than three years in development, a team of U.S. Army researchers and industry partners completed the construction of a testbed that will help to inform the design of future ...