Results 241 to 250 of about 299,226 (303)
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Effect of Humidity on Sound-Transmission Loss
The Journal of the Acoustical Society of America, 1965A test program was recently instituted by the United States Gypsum Company—Research Center, with the cooperation of the Riverbank Acoustical Laboratories, to determine the effect of ambient humidity on the sound-transmission loss of a double-leaf gypsum-board partition system. The results of this test series were quite explicit.
Allen H. Shiner, Maurice J. Marchello
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Experimental investigations into sound transmission loss by different materials at aircraft noise
, 2021In this paper, the sound transmission loss by different materials at aircraft noise is measured experimentally. The main objective of this paper is to measure the acoustical or sound absorption properties of glass material, polypropylene material and ...
Shashi Bahl, A. Bagha, Shankar Sehgal
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Sound Transmission Loss of Panels
2015In general, the noise level inside a building or structure is determined by the transmission of air-borne sound from external and internal acoustic sources and by structure-borne sound induced by some mechanical sources.
Anders Nilsson, Bilong Liu
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Sound transmission loss analysis of novel sandwich plate with star-shaped auxetic cellular cores
Mechanics of Advanced Materials and StructuresA star-shaped auxetic cellular metamaterial with a negative Poisson’s ratio (NPR) was employed in this study to model lightweight sandwich panels, and an analysis of its sound transmission characteristics was conducted.
Dong Yu, F. Kong, Tao Fu
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, 2020
Double panel partitions with a foam core suffer a poor sound transmission loss at their mass-spring-mass resonance frequency. This paper considers the use of vibro-acoustic resonant metamaterials to improve the acoustic insulation performance at the ...
Noé Geraldo Rocha de Melo Filho +3 more
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Double panel partitions with a foam core suffer a poor sound transmission loss at their mass-spring-mass resonance frequency. This paper considers the use of vibro-acoustic resonant metamaterials to improve the acoustic insulation performance at the ...
Noé Geraldo Rocha de Melo Filho +3 more
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Measurement of Sound-Transmission Loss in the Field
The Journal of the Acoustical Society of America, 1962Field transmission-loss measurements are an important part of architectural-acoustics work. The technical problems of making field measurements differ in many respects from the problems of laboratory measurements. These problems and some solutions are discussed.
W. R. Farrell, B. G. Watters
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2019
The transmission of sound through walls and barriers is an extremely important topic for noise control engineers. In this chapter we examine the basic principles of how sound passes through walls. The primary physical characteristics that influence sound transmission through walls are studied, including the importance of mass and how the bending ...
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The transmission of sound through walls and barriers is an extremely important topic for noise control engineers. In this chapter we examine the basic principles of how sound passes through walls. The primary physical characteristics that influence sound transmission through walls are studied, including the importance of mass and how the bending ...
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Sound transmission loss of multi-layered elastic micro-perforated plates in an impedance tube
, 2020In this paper, the sound transmission loss (STL) of multi-layered elastic micro-perforated plates (MPPs) in an impedance tube is investigated using the transfer matrix method under the plane wave condition.
Hyun-Sil Kim +4 more
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Sound transmission loss of multi-layered infinite micro-perforated plates.
Journal of the Acoustical Society of America, 2020In this paper, the sound transmission loss (STL) of multi-layered infinite micro-perforated plates (MPPs) is studied. A prediction model for the STL of the multi-layered infinite MPPs is developed, where each MPP may or may not have a perforation, and ...
Hyun-Sil Kim +4 more
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Boundary element analyses for sound transmission loss of panels
The Journal of the Acoustical Society of America, 2010The sound transmission characteristics of an aluminum panel and two composite sandwich panels were investigated by using two boundary element analyses. The effect of air loading on the structural behavior of the panels is included in one boundary element analysis, by using a light-fluid approximation for the eigenmode series to evaluate the structural ...
Ran, Zhou, Malcolm J, Crocker
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