Low-frequency attenuation of acoustic waves in sandy/silty marine sediments
نویسندگان
چکیده
منابع مشابه
Determination of sediments diameter using acoustic waves
The use of acoustic waves in researches related to sea water is of most importance among scientists recently. Since these waves are the only waves, transmitted in water with lowest attenuation and high speed, they can be used in many scientific fields. The main goal of this research is to better understand the physics and mechanisms of sound-seabed interaction, including acoustic penetration, p...
متن کاملdetermination of sediments diameter using acoustic waves
the use of acoustic waves in researches related to sea water is of most importance among scientistsrecently. since these waves are the only waves, transmitted in water with lowest attenuation and high speed, they canbe used in many scientific fields. the main goal of this research is to better understand the physics and mechanismsof sound-seabed interaction, including acoustic penetration, prop...
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A unified theory of sound propagation in saturated marine sediments is developed on the basis of a linear wave equation, which includes a new dissipation term representing internal losses arising from interparticle contacts. This loss mechanism, which shows a ‘‘memory’’ or hysteresis, is proposed as being responsible for the acoustic properties of sediments. To accommodate the memory, the loss ...
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متن کاملShear wave speed dispersion and attenuation in granular marine sediments.
The reported compressional wave speed dispersion and attenuation could be explained by a modified gap stiffness model incorporated into the Biot model (the BIMGS model). In contrast, shear wave speed dispersion and attenuation have not been investigated in detail. No measurements of shear wave speed dispersion have been reported, and only Brunson's data provide the frequency characteristics of ...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 2008
ISSN: 0001-4966
DOI: 10.1121/1.2987468