نتایج جستجو برای: structure borne noise

تعداد نتایج: 1769229  

Journal: :Transactions of the Korean Society for Noise and Vibration Engineering 2015

Journal: :Journal of Structural and Construction Engineering (Transactions of AIJ) 2008

Journal: :Journal of Applied Mechanics 1974

1997
Thomas L. Lagö Sven Johansson P-A Hellström

Helicopters generate substantial noise levels, especially at low frequency. These noise levels are normally not harmful for rpm Rotation per minute the ear. However, the low frequency content masks the speech . Therefore, pilots tend to set the communication system at maximum level so that the sound levels reach severe amplitudes for the ear. These high sound levels are exposing the ear to fati...

2006
Klaus Genuit Gottfried Behler Michael Vorländer

Binaural Transfer Path Analysis (BTPA) was originally developed for assessing the binaural contributions of individual vehicle noise paths. It is a powerful modeling tool enabling engineers to explore noise transfer mechanisms by distinguishing between excitation source strengths and the transfer behavior of individual elements. The method is well-known for powertrain noise analysis, including ...

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