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of 21
pro vyhledávání: '"Amanda D. Hanford"'
Publikováno v:
The Journal of the Acoustical Society of America. 146(4)
One of the commonly investigated transformation acoustic device is the ground cloak, which conceals a scattering object on a reflecting surface. Multiple studies have numerically simulated acoustic ground cloaks, but because of the challenges associa
Autor:
Elena Ciappi, Sergio De Rosa, Francesco Franco, Jean-Louis Guyader, Stephen A. Hambric, Randolph Chi Kin Leung, Amanda D. Hanford
This is the proceedings of the Second International Workshop on Flow Induced Noise and Vibration (FLINOVIA), which was held in Penn State, USA, in April 2016. The authors'backgrounds represent a mix of academia, government, and industry, and several
Autor:
Benjamin S. Beck, Amanda D. Hanford
Publikováno v:
The Journal of the Acoustical Society of America. 146:3045-3045
A current area of research interest in acoustic metamaterials is the experimental validation of the effective properties computed using analytical and numerical models. This is generally done through an inverse measurement technique, by measuring the
Autor:
Amanda D. Hanford, Sheri Martinelli, Andrew S. Wixom, Zachary P. Berger, Michael Krane, Peter D. Lysak, Gage Walters
Publikováno v:
The Journal of the Acoustical Society of America. 146:2838-2838
Publikováno v:
The Journal of the Acoustical Society of America. 145:1725-1725
The field of acoustic metamaterials has produced novel materials in a wide variety of applications. An important step in designing a metamaterial is unit cell analysis with subwavelength geometry. There are several techniques used for unit cell analy
Publikováno v:
The Journal of the Acoustical Society of America. 130:EL8-EL13
The nonlinear propagation of a pure sinusoid is considered using time domain statistics. The probability density function, standard deviation, skewness, kurtosis, and crest factor are computed for both the amplitude and amplitude time derivatives as
Publikováno v:
The Journal of the Acoustical Society of America. 143:1716-1716
While coupled finite element and boundary element (FE/BE) codes are used regularly in acoustics—particularly structural acoustics—and periodic boundary conditions are common, the combination of the three is rare. However, such calculations have b
Publikováno v:
The Journal of the Acoustical Society of America. 143:1918-1918
Acoustic ground cloaks, which conceal an object on a rigid surface, utilize a linear coordinate transformation to map the flat surface to a triangular void by compressing space into two triangular cloaking regions consisting of a homogeneous anisotro
Publikováno v:
The Journal of the Acoustical Society of America. 141:3641-3641
Previous work in the open literature has described three potential ways to create an acoustic metamaterial with anisotropic mass density and isotropic bulk modulus: (1) alternating layers of homogeneous isotropic materials, (2) perforated plates, and