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Rossignol, Karl-Stephane and Delfs, Jan Werner (2018) Experimental investigations on noise shielding by unconventional aircraft configurations. Journal of Sound and Vibration, 427, pp. 188-221. Elsevier. doi: 10.1016/j.jsv.2017.10.016. ISSN 0022-460X.
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Official URL: https://www.sciencedirect.com/science/article/pii/S0022460X1730740X
Abstract
An extensive noise shielding database was acquired in the 3m DNW-NWB acoustic windtunnel. A laser pulse source realized with a special optical focussing system for large focus lengths was used to generate well defined monopole type non-intrusive source signals even at conditions with flow. The shielding properties of three different aircraft models, DLR's Low Noise Aircraft, a Hybrid Wing Body configuration and DLR's F17E UCAV model were measured. This data will help validate numerical simulation methods (ray tracing, fast multipole wave solvers, and LEE solvers), and will be used for the formulation of low-noise aircraft design guidelines. This is an important step for the further development of a complete aircraft low noise design capability.
| Item URL in elib: | https://elib.dlr.de/125641/ | |||||||||
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| Document Type: | Article | |||||||||
| Title: | Experimental investigations on noise shielding by unconventional aircraft configurations | |||||||||
| Authors: |
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| Date: | 4 August 2018 | |||||||||
| Journal or Publication Title: | Journal of Sound and Vibration | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | Yes | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | Yes | |||||||||
| In ISI Web of Science: | Yes | |||||||||
| Volume: | 427 | |||||||||
| DOI : | 10.1016/j.jsv.2017.10.016 | |||||||||
| Page Range: | pp. 188-221 | |||||||||
| Editors: |
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| Publisher: | Elsevier | |||||||||
| Series Name: | Aeroacoustics research in Europe: The CEAS-ASC report on 2016 highlights | |||||||||
| ISSN: | 0022-460X | |||||||||
| Status: | Published | |||||||||
| Keywords: | sound shielding, laser sound source, acoustic wind tunnel testing, acoustic signature, low observability | |||||||||
| 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: | Braunschweig | |||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Technical Acoustics | |||||||||
| Deposited By: | Delfs, Prof.Dr. Jan Werner | |||||||||
| Deposited On: | 07 Jan 2019 16:15 | |||||||||
| Last Modified: | 05 Nov 2020 19:24 |
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