Whirl flutter is the aeroelastic phenomenon caused by the coupling of aircraft propeller aerodynamic forces and the gyroscopic forces of the rotating masses (propeller, gas turbine engine rotor). It ...

Flutter is a dynamic aeroelastic instability caused by interaction of unsteady aerodynamic forces with elastic vibration of the structure. At the so-called flutter critical velocity, the damping ratio ...

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 ...

Army researchers will study whirl flutter behavior to determine the viability of new tiltrotor analysis tool NORFOLK, Va. -- After more than three years in development, a team of U.S. Army researchers ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

Abstract: The advent of novel electric-powered propeller aircraft designs brings back increased focus on assessment of aircraft whirl flutter. During operation of propeller-driven aircraft, generation ...

An illustration of a magnifying glass. An illustration of a magnifying glass.