Loading...
Please wait, while we are loading the content...
Similar Documents
Airframe noise component interaction studies
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Schlinker, R. H. Fink, M. R. |
| Copyright Year | 1979 |
| Description | Acoustic wind tunnel tests were conducted of a two-dimensional wing section with removable high-lift leading and trailing edge devices and a removeable two-wheel landing gear with open cavity. An array of far field conventional microphones and an acoustic mirror directional microphone were utilized to determine far field spectrum levels and noise source distribution. Data were obtained for the wing with components deployed separately and in various combinations. The basic wing model had 0.305 m (1.00 ft) chord, which is roughly 1/10 scale for a one-hundred passenger transport airplane. Most of the data were obtained at 70.7 and 100 m/sec (232 and 328 ft/sec) airspeeds, which bracket the range of practical approach speeds for such aircraft. Data were obtained at frequence to 40 kHz so that, when scaled to s typical full-airframe, the frequency region which strongly influences preceived noise level would be included. |
| File Size | 7933950 |
| Page Count | 140 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790011644 |
| Archival Resource Key | ark:/13960/t1wd8p02j |
| Language | English |
| Publisher Date | 1979-03-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Airspeed Structural Members Airframes Data Acquisition Landing Gear Far Fields Wind Tunnel Tests Aerodynamic Noise Trailing Edge Flaps Noise Measurement Leading Edges Noise Spectra Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
