Zellmann, Christoph and Schäffer, Beat and Wunderli, Jean-Marc and Isermann, Ullrich and Paschereit, C. O. (2017) Aircraft Noise Emission Model Accounting for Aircraft Flight Parameters. Journal of Aircraft, 55 (2), pp. 682-695. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.C034275. ISSN 0021-8669.
Full text not available from this repository.
Official URL: http://arc.aiaa.org/doi/abs/10.2514/1.C034275
Abstract
Today's aircraft noise calculation programs either use simple sound source descriptions with few input parameters or very sophisticated models with demanding input parameters. To fill the gap between these two approaches, a new model is proposed with the scope to find a reasonable comproise between its degree of detail and number of accessible flight parameters. By means of an extensive data exploration, the flight parameters with the strongest influence on the sound emission level were identified. These parameters were incorporated in two multiple linear regression models, one for airframe and one for engine sound sources. A new method allowed Fitting both source models to flyover measurements of the total aircraft. In total, models for ninteen combinations of aircraft and engine types were eastablished, which underlines the generality of the new source model for turbofan powered aircraft. Exemplary comparisons between measurements and model predictions for two aircraft types revealed, that the model is able to accurately reproduce directivity and spectra for diffrent fligth conditions.
Item URL in elib: | https://elib.dlr.de/107703/ | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Article | ||||||||||||||||||
Additional Information: | Publication Date (online): August 28, 2017 | ||||||||||||||||||
Title: | Aircraft Noise Emission Model Accounting for Aircraft Flight Parameters | ||||||||||||||||||
Authors: |
| ||||||||||||||||||
Date: | 6 September 2017 | ||||||||||||||||||
Journal or Publication Title: | Journal of Aircraft | ||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||
Open Access: | No | ||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||
Volume: | 55 | ||||||||||||||||||
DOI : | 10.2514/1.C034275 | ||||||||||||||||||
Page Range: | pp. 682-695 | ||||||||||||||||||
Editors: |
| ||||||||||||||||||
Publisher: | American Institute of Aeronautics and Astronautics (AIAA) | ||||||||||||||||||
ISSN: | 0021-8669 | ||||||||||||||||||
Status: | Published | ||||||||||||||||||
Keywords: | Fluglärm, Aeroakustik | ||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||||
HGF - Program Themes: | fixed-wing aircraft | ||||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||||
DLR - Program: | L AR - Aircraft Research | ||||||||||||||||||
DLR - Research theme (Project): | L - Simulation and Validation (old) | ||||||||||||||||||
Location: | Göttingen | ||||||||||||||||||
Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Helicopter, GO | ||||||||||||||||||
Deposited By: | Bachmann, Barbara | ||||||||||||||||||
Deposited On: | 08 Dec 2017 12:11 | ||||||||||||||||||
Last Modified: | 05 Nov 2020 22:33 |
Repository Staff Only: item control page