Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Benjamin S. Beck"'
Publikováno v:
The Journal of the Acoustical Society of America. 151:A129-A130
Stiffened composite panels are commonly used in aerospace structures, because they are lightweight, while maintaining a high load-bearing ability. However, their high stiffness-to-mass ratio makes them efficient noise radiators. In rotorcraft cabins
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
Publikováno v:
The Journal of the Acoustical Society of America. 150:A186-A186
Autor:
Aaron J. Stearns, Benjamin S. Beck
Publikováno v:
New Journal of Physics. 23:083009
Acoustic metamaterials have already been shown to be effective for vibration reduction and control. Local resonances in the metamaterial cause waves at frequencies within band gaps to become evanescent, thus preventing wave propagation through the ma
Autor:
Aaron J. Stearns, Benjamin S. Beck
Publikováno v:
The Journal of the Acoustical Society of America. 148:2719-2719
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
Publikováno v:
Applied Acoustics. 93:15-22
Acoustic liners are commonly used to reduce noise from commercial aircraft engines. Engine liners are placed in the nacelle inlet and aft bypass duct to attenuate the noise radiated from the engine. Traditional engine liners are constructed of a perf
Autor:
Benjamin S. Beck
Publikováno v:
The Journal of the Acoustical Society of America. 145:1824-1824
There are many industries that utilized scale models to test the behavior of systems before building full-size structures, such as aircraft, spacecraft, and marine vehicle design. While vibration and acoustic response may not be the only quantities o
Autor:
Aaron J. Stearns, Benjamin S. Beck
Publikováno v:
The Journal of the Acoustical Society of America. 145:1665-1665
Acoustic metamaterials are composite materials exhibiting effective properties and acoustic behavior not found in traditional materials. Through periodic subwavelength resonant inclusions, acoustic metamaterials enable steering, cloaking, lensing, an
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