Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Robert Jaron"'
Publikováno v:
Aerospace, Vol 11, Iss 4, p 259 (2024)
The rotor–stator interaction noise is a major source of fan noise. Especially for low-speed fan stages, the tonal component is typically a dominant noise source. A challenge is to reduce this tonal noise, as it is typically perceived as unpleasant.
Externí odkaz:
https://doaj.org/article/71a7d19fab194e91a7a8ee160fe8ded9
Autor:
Stan Proskurov, Markus Lummer, Jan Werner Delfs, Roland Ewert, Jochen Kirz, Martin Plohr, Robert Jaron
Publikováno v:
Aerospace, Vol 10, Iss 9, p 773 (2023)
Overcoming the problem of excessive engine noise at low altitudes is a formidable task on the way to developing a supersonic passenger aircraft. The focus of this paper is on the fan noise shielding during take-off, investigated as part of the DLR pr
Externí odkaz:
https://doaj.org/article/a3d8b6a4bec24601b1f5b380121a1ac1
Autor:
Michel Nöding, Martin Schuermann, Lothar Bertsch, Marc Koch, Martin Plohr, Robert Jaron, Jeffrey J. Berton
Publikováno v:
Aerospace, Vol 9, Iss 1, p 9 (2021)
The German Aerospace Center has launched an internal project to assess the noise impact associated with supersonic transport aircraft during approach and departure. A dedicated simulation process is established to cover all relevant disciplines, i.e.
Externí odkaz:
https://doaj.org/article/bb2ad42d574c4a5596a50730e8cb9e72
Autor:
Tom Otten, Lars Enghardt, Sebastien Guerin, Robert Jaron, Antoine Moreau, Timea Lengyel, Eberhard Nicke
Publikováno v:
Journal of Turbomachinery. :1-38
Due to the increasing bypass ratios of modern engines, the fan stage is increasingly becoming the dominant source of engine noise. Accordingly, it is becoming more and more important to develop not only efficient but also quiet fan stages. In this pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f103a768f9a60a71db21908d0ac9f2c8
https://doi.org/10.1115/1.4051935
https://doi.org/10.1115/1.4051935
Autor:
Michel Nöding, Martin Schuermann, Lothar Bertsch, Marc Koch, Martin Plohr, Robert Jaron, Jeffrey J. Berton
Publikováno v:
Aerospace, Vol 9, Iss 9, p 9 (2022)
Aerospace; Volume 9; Issue 1; Pages: 9
Aerospace; Volume 9; Issue 1; Pages: 9
The German Aerospace Center has launched an internal project to assess the noise impact associated with supersonic transport aircraft during approach and departure. A dedicated simulation process is established to cover all relevant disciplines, i.e.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f77b4798e1f51cefc6e9e1f99851c1c
https://doi.org/10.3390/aerospace9010009
https://doi.org/10.3390/aerospace9010009
Autor:
Robert Jaron, Lukas Klähn, Robert Meyer, Angelo Rudolphi, Luciano Caldas, Ulf Tapken, Maximilian Behn
Publikováno v:
AIAA AVIATION 2021 FORUM.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a5229e4d1ac44a477356cdc4c10ca28
https://doi.org/10.2514/6.2021-2314
https://doi.org/10.2514/6.2021-2314
Publikováno v:
Aerospace Science and Technology. 125:107083
Conventionally, fan stages are designed with more stator vanes than rotor blades. These fan stages provide a tonal noise advantage as the blade passing frequency tone is cut-off. Contrary to conventional cut-off designs, low-count OGV (Outlet Guide V
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::865dc6e27962e40a2b7e1faf119ce810
https://doi.org/10.1016/j.ast.2021.107083
https://doi.org/10.1016/j.ast.2021.107083
Autor:
Carolin Kissner, Sebastien Guerin, Robert Meyer, Bojan Kajasa, Sebastian Hakansson, Benjamin Pardowitz, Ulf Tapken, Lars Enghardt, Maximilian Behn, Robert Jaron
Publikováno v:
25th AIAA/CEAS Aeroacoustics Conference
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::837fdf424be63aca9b8c38856a62b51f
https://doi.org/10.2514/6.2019-2500
https://doi.org/10.2514/6.2019-2500
Publikováno v:
European Conference on Turbomachinery Fluid Dynamics and hermodynamics.
In the present study turbulence characteristics from Reynolds Averaged Navier-Stokes simulations are used as input for the analytical prediction of fan broadband noise due to the interaction of the fan rotor wake turbulence with the outlet guide vane
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ff418587810e19775d0dd2b17adb00c
https://doi.org/10.29008/etc2017-067
https://doi.org/10.29008/etc2017-067
A major source of contra-rotating open rotor (CROR) tonal noise is caused by the interaction of the front-rotor (FR) wakes with the aft-rotor blades. Inspired by chevron nozzles, which increase the mixing process in jet shear layers, serrations are i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b7fdf55e8c2e25a1f9a0c4bcd97995b
https://hal.archives-ouvertes.fr/hal-01884252
https://hal.archives-ouvertes.fr/hal-01884252