Results 11 to 20 of about 2,175,809 (315)
Sound radiation from perforated plates [PDF]
, 2008 Perforated plates are quite often used as a means of engineering noise control to reduce the sound radiated by structures. However, there appears to be a lack of representative models to determine the sound radiation from a perforated plate.
Putra, Azma
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The effect of different combinations of boundary conditions on the average radiation efficiency of rectangular plates [PDF]
, 2014 The boundary conditions of a vibrating plate are known to have an influence on its sound radiation for frequencies below the critical frequency. To investigate this effect in a systematic way, the average radiation efficiency and radiated power are ...
Squicciarini, G. +5 more
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Sound radiation in turbulent channel flows [PDF]
, 2003 Lighthill’s acoustic analogy is formulated for turbulent channel flow with pressure as the acoustic variable, and integrated over the channel width to produce a two-dimensional inhomogeneous wave equation.
Morfey, Christopher L. +2 more
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A hybrid finite element approach to modeling sound radiation from circular and rectangular ducts [PDF]
, 2012 This is the post-print version of the Article - Copyright @ 2012 Acoustical Society of AmericaA numerical model based on a hybrid finite element method is developed that seeks to join sound pressure fields in interior and exterior regions.
Wenbo Duan, Kirby, R, Ray Kirby, Duan, W
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Nonlinear mechanisms of sound generation in a perturbed parallel jet flow [PDF]
, 2006 An initial value problem with relevance to jet noise is investigated. A plane parallel jet flow is subjected to a spatially localized initial disturbance and is then left to evolve according to the two-dimensional compressible Navier–Stokes equations ...
Hu, Z.W., Morfey, C.L., Sandham, N.D.
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Sound Radiation from a Roundabout
Archives of Acoustics, 2010 Sound propagation from the vehicles moving on the city roundabout, with taking into account the wind is investigated. Solution of the problem for one moving sound source is found by means of the integral Fourier transforms extended over space variables and time.
Olexa PIDDUBNIAK, Nadia PIDDUBNIAK
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Active Transient Acousto-Structural Response Control of a Smart Cavity-Coupled Circular Plate System
Archives of Acoustics, 2017 The transient vibroacoustic response suppression of a piezo-coupled sandwich circular plate backed by a rigid-walled cylindrical acoustic enclosure is investigated.
Seyyed M. HASHEMINEJAD, Rezgar SHAKERI
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Sound radiation from an axisymmetric radiator in an infinite baffle [PDF]
The Journal of the Acoustical Society of America, 1982 A method that can be applied to the radiation problem of a convex or a concave radiator in an infinite baffle is described. This method utilizes the least-square-error method, and allows the radiator to take almost any kind of axisymmetric shape even though the accuracy of the result depends on the shape.
Suzuki, Hideo, Tichy, Jiri
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Zhongguo Jianchuan Yanjiu, 2018 [Objectives] The main structure of a submarine is a ring-stiffened cylindrical shell. At present, most research into the effects of ribs on the acoustic radiation characteristics of cylindrical shells is concentrated on middle and low frequencies, but ...
ZHANG Kai +3 more
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Applied Sciences, 2020 The physics of musical instruments often uses modal analysis as one of the most important methods for describing the behavior of sound chests and their acoustic radiation.
Lamberto Tronchin +2 more
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