DocumentCode :
2027475
Title :
Sound radiation from airplane on the start
Author :
Piddubniak, -Plexa ; Piddubniak, Nadia ; Midera, Paulina
Author_Institution :
Fac. of Process & Environ. Eng., Lodz Univ. of Technol., Lodz, Poland
fYear :
2012
fDate :
24-27 Sept. 2012
Firstpage :
195
Lastpage :
202
Abstract :
The problem of sound radiation from airplane during start on runway of aerodrome in wind action conditions is considered. The carriers of sound are aircraft engines, which are modeling in this paper by point sources moving in air with constant acceleration parallel to the plane interface of acoustic and solid elastic half-spaces. The solution of problem is obtained using the integral Fourier-transforms over time and space coordinates, and the stationary phase method. The numerical analysis of spatial-time distributions of instantaneous sound pressure and sound pressure level is carried out for a case of start of the two-engine airplane of Boeing 777-300ER type.
Keywords :
Fourier transforms; acoustic intensity measurement; acoustic noise; acoustic radiators; acoustic signal processing; aerospace engines; aircraft; airports; wind; Boeing 777-300ER; acoustic; aerodrome; aircraft engine; constant acceleration; instantaneous sound pressure; integral Fourier-transform; numerical analysis; solid elastic half-space; sound pressure level; sound radiation; spatial-time distribution; stationary phase method; two-engine airplane; wind action condition; Acceleration; Acoustics; Aircraft propulsion; Airplanes; Atmospheric modeling; Noise; Numerical analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED), 2012 XVIIth International Seminar/Workshop on
Conference_Location :
Tbilisi
ISSN :
2165-3585
Print_ISBN :
978-1-4673-2253-9
Type :
conf
Filename :
6344141
Link To Document :
بازگشت