Acoustics

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DLR anal­y­ses noise prop­er­ties of the new high-speed he­li­copter RAC­ER


Researchers at the DLR Institute of Aerodynamics and Flow Technology have analysed and determined the acoustic properties of the Rapid And Cost-Effective Rotorcraft (RACER) and found out: The RACER is...
 http://www.dlr.de/as/en/desktopdefault.aspx/tabid-17623/27933_read-66233/
Related Topics: Aerodynamic Aircraft Propulsion and Power Acoustics System Analysis Aircraft Design, Testing and Performance

Air­craft noise mea­sured on the ground and on the air­craft syn­chronous­ly for the first time


Which parts of an aircraft cause noise and what sort of noise is it? For the first time, scientists from the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) and GE Aviation in...
 http://www.dlr.de/as/en/desktopdefault.aspx/tabid-17623/27933_read-69599/
Related Topics: Aircraft Propulsion and Power Acoustics Aerospace Medicine

Sound propagation


Noise is one of the most important environmental problems in the vicinity of traffic infrastructures such as airports, roads and railway lines. Traffic noise originates from propulsion, wheels and air...
 http://www.dlr.de/pa/en/desktopdefault.aspx/tabid-2554/3836_read-5751/
Related Topics: Acoustics
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