틸트로터에서 발생하는 공력소음의 측정에 관한 연구Measurements on the Aerodynamic Noise Generated from a Tiltrotor

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 315
  • Download : 0
In this paper the aeroacoustic characteristics of a tilt-rotor system is measured by using a sealed model tilt-rotor. With a microphone array system and the do-dopplerization algorithm, the location and the characteristics of rotor noise are successfully measured. The most of high frequency noise (4kHz) is found to be located at rotor blade tips, but the low frequency tonal noise is dominant on the middle of the rotor blades. The measured tonal noise characteristics are compared to the results of theoretical calculation. At 0.5m distance from the rotor plane, measured and calculated data are relatively well matched regardless of rotating speed and collective pitch angie for the azimuthal angles between . However, the data on the azimuthal angles between are not quite comparable. In addition, the compared data for far-field case (1.5m) are quite different. This is probably due to the unsteady effect which if not included in the theoretical calculation.
Publisher
한국소음진동학회
Issue Date
2005-05-01
Language
KOR
Citation

2005 소음진동공학회 춘계학술대회, pp.158 - 163

URI
http://hdl.handle.net/10203/151969
Appears in Collection
AE-Conference Papers(학술회의논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0