Radiation of Sound During the Takeoff of an Aircraft
We consider the problem of radiation of sound during the takeoff of an aircraft in the stage of its elevation over the runway with regard for the action of the wind. The role of the sources of noise are played by the engines of the aircraft modeled by point sources moving in air with a constant velo...
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| Veröffentlicht in: | Journal of mathematical sciences (New York, N.Y.) N.Y.), 2017-10, Vol.226 (2), p.89-103 |
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| container_end_page | 103 |
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| container_title | Journal of mathematical sciences (New York, N.Y.) |
| container_volume | 226 |
| creator | Piddubniak, O. P. Piddubniak, N. H. |
| description | We consider the problem of radiation of sound during the takeoff of an aircraft in the stage of its elevation over the runway with regard for the action of the wind. The role of the sources of noise are played by the engines of the aircraft modeled by point sources moving in air with a constant velocity at an angle to the plane interface of acoustic and elastic half spaces. The solution of the problem is obtained by using the Fourier integral transformations with respect to time and space variables with regard for the properties of generalized functions and the method of stationary phase. We perform the numerical analyses of the space-and-time distributions of the pressure of sound and the energy characteristics of the acoustic field on the example of modeling of the process of takeoff of the six-engine An-225 “Mriya” aircraft. |
| doi_str_mv | 10.1007/s10958-017-3521-2 |
| format | Article |
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| subjects | Acoustic noise Aerospace engines Aircraft Elastic half spaces Fourier transforms Half spaces Integral transforms Mathematical models Mathematics Mathematics and Statistics Numerical analysis Point sources Sound Takeoff |
| title | Radiation of Sound During the Takeoff of an Aircraft |
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