aerodynamic damping

aerodynamic damping

aerodynamic dampingclick for a larger image
The damping in roll effect—the difference in angle of attacks of the two wings and consequent lift differential tends to restore the aircraft into wings level altitude.
aerodynamic dampingclick for a larger image
Whenever in-flight maneuvers result in rotation of an aircraft about or near its center of gravity, a restoring moment is created by the changed relative airflow. This restoring moment opposes the control demands, and it arrests maneuvers as and when the control demands cease. The effectiveness of the restoring moment (known as aerodynamic damping) is dependent on the dynamic pressure (i.e., indicated air speed). As altitude increases, true air speed increases for the given equivalent air speed, resulting in decreased aerodynamic forces. Thus, at higher altitudes the pilot must apply greater opposite control movements to arrest rotation.
References in periodicals archive ?
The effect of uniform flow appears as additional stiffness and damping, which are often called aerodynamic stiffness and aerodynamic damping.
The objective of this ambient monitoring was to extract aerodynamic stiffness and aerodynamic damping from the girder response data under various levels of wind speeds.
Hakucho Bridge identified change in aerodynamic damping and stiffness with respect to wind velocity.
Inter-blade coupling (due to the shrouds, aerodynamic damping and etc.
He also disregarded the effects of aerodynamic damping.
Reduced aerodynamic damping does not necessarily represent a flutter problem, because the inherent damping of sailplane structure was neglected at current stage of investigation and the aerodynamic models used in analyses were not validated.
Reduction of aerodynamic damping of the fuselage was observed in V-g diagrams in the speed range of 100-150 km/h when the rudder is free (pilot's feet are off the rudder pedals).
Some of the explanations are rather in-depth--spider webs not throwing insects back off after they hit the web because of hysteresis and aerodynamic damping, for instance.
With the model, we found, unexpectedly, that aerodynamic damping has a tremendous effect on capturing prey On the scale of insects, air resistance plays a large role.
Aerodynamic damping of wind turbines is essential for minimizing vibrations (while turbine operations), which can lead to structural failures.