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Splettstößer, Wolf R. and Prieur, Jean and Pahlke, Klausdieter and Schultz, K.-J. and van der Wall, Berend G. and Delrieux, Yves and Gardarein, Patrick and Geoffroy, P. and Leconte, Philippe (1997) Main Phase of the ERATO Cooperation on Aeroacoustic Rotor Optimization. DLR-Interner Bericht. DLR-IB 129-97/10, ONERA TRS 131/5094 PY. 67 S. (Unpublished)
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Abstract
This report summarizes major steps and results of the second or main phase of the aeroacoustic rotor optimization programme (ERATO), which was jointly conducted by ONERA and DLR. In order to fulfil the ambitious design goal of 6dB reduction of the BVI impulsive noise during landing approaach compared to the 7AD reference rotor, extensive parametric studies on different rotor and blade design parameters were performed followed by the aeroacoustic optimization process which was based on the results of the parametric studies and on engineering judgement.
| Item URL in elib: | https://elib.dlr.de/20413/ | ||||||||||||||||||||||||||||||||||||||||
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| Document Type: | Monograph (DLR-Interner Bericht) | ||||||||||||||||||||||||||||||||||||||||
| Title: | Main Phase of the ERATO Cooperation on Aeroacoustic Rotor Optimization | ||||||||||||||||||||||||||||||||||||||||
| Authors: |
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| Date: | 1997 | ||||||||||||||||||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||||||||||||||||||
| Number of Pages: | 67 | ||||||||||||||||||||||||||||||||||||||||
| Status: | Unpublished | ||||||||||||||||||||||||||||||||||||||||
| Keywords: | ERATO, aeroacoustic rotor optimization | ||||||||||||||||||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||||||||||||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||||||||||||||||||||||
| HGF - Program Themes: | Rotorcraft (old) | ||||||||||||||||||||||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||||||||||||||||||||||
| DLR - Program: | L RR - Rotorcraft Research | ||||||||||||||||||||||||||||||||||||||||
| DLR - Research theme (Project): | L - The Quiet and Comfortable Rotorcraft (old) | ||||||||||||||||||||||||||||||||||||||||
| Location: | Braunschweig , Göttingen | ||||||||||||||||||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Flight Systems > Rotorcraft Institute of Aerodynamics and Flow Technology > Technical Acoustics Institute of Aerodynamics and Flow Technology > CASE | ||||||||||||||||||||||||||||||||||||||||
| Deposited By: | van der Wall, Prof. Dr. Berend G. | ||||||||||||||||||||||||||||||||||||||||
| Deposited On: | 19 Dec 2005 | ||||||||||||||||||||||||||||||||||||||||
| Last Modified: | 27 Apr 2009 04:46 |
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