airframe noise

airframe noise

[′er‚frām ‚nȯiz]
(acoustic)
Noise generated by the nonpropulsive components of an aircraft.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The flights tested several technologies designed to reduce airframe noise, which is generated by the aircraft's movement through the air, and doesn't include engine noise.
The strong interactions between the vortex from the upstream flow and the airfoils downstream are one of the most important effects in airframe noise generation, especially in the aircraft take-off and landing on the ground [2-4].
Zhang, "Control strategies for aircraft airframe noise reduction," Chinese Journal of Aeronautics, vol.
For the past years quieter turbofan engines development accentuated the airframe noise in turn becoming an important noise source in commercial aircrafts.
The physics behind airframe noise generation is still not fully understood and must be characterized before reduction techniques can be implemented.
Also, operators can keep the aircraft in a clean aerodynamic configuration for as long as possible to reduce airframe noise. Of course, one of the most popular methods is to regulate and minimize flights of highly populated or sensitive areas.
* flaps and slats have been eliminated-these are a major source of airframe noise when a plane is landing,
The controls were OK, and a cursory look at the instruments and indicators appeared fine, but there was a slight airframe noise. It was similar to the noise you hear When the aircraft is in a slight sideslip, or the rudder is out of trim.
The goal was to use the code to help predict helicopter airframe noise coming from complex parts, such as landing gear, slats, and flaps.