Results 21 to 30 of about 299,226 (303)
Sound transmission loss of windows [PDF]
The Journal of the Acoustical Society of America, 1979 An extensive series of measurements has been made to obtain a systematic evaluation of the effects of glass thickness and interpane spacing on the sound transmission loss of windows. These included 93 laboratory measurements conforming to ASTM standard E90 and field measurements on a subset of 18 of these window types.
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, 2021 The scope of this paper is to investigate the sound transmission loss of a typical fuselage panel section, as well as to propose solutions based on the inclusion of a periodic pattern inside its foam core, which aim at passively improving the acoustic ...
D. Magliacano +3 more
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Effect of sound-absorptive facings on partition airborne-sound transmission loss [PDF]
The Journal of the Acoustical Society of America, 1977 Laboratory measurements of the improvement of partition airborne-sound transmission loss in the presence of sound-absorptive partition facings are presented. For a double-leaf partition of 1/2-in.-thick gypsum board on 2×4-in. studs, the application of such facings has led to improvements in transmission loss in excess of 10 dB in the 1/3-octave bands ...
Steven M. Brown +2 more
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Noise prediction considering transmitted sound from noise barriers
Nihon Kikai Gakkai ronbunshu, 2019 In the noise prediction on railway viaducts by numerical acoustic analysis, it is premised that the noise barriers have sufficient sound insulation performance.
Daigo SATO, Akira OMOTO
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Experimental Investigation of Sound Transmission Loss in Double-Glazing Filled with Hydrogel
Muhandisī-i bihdāsht-i ḥirfah/ī, 2022 Background and Objective: Double-glazing is one of the methods of sound control. The use of materials other than gas inside double-glazing can develop sound transmission loss.
Iraj Ali Mohammadi +4 more
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Archives of Acoustics, 2015 The paper presents application of Taguchi method in optimizing the sound transmission loss through sandwich gypsum constructions and those comprising of masonry concrete blocks and gypsum boards in order to investigate the relative influence of the ...
Naveen GARG, Anil KUMAR, Sagar MAJI
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Experimental study on sound transmission loss of plenum windows [PDF]
The Journal of the Acoustical Society of America, 2019 To investigate the noise reduction mechanism of plenum windows, the paper experimentally studied the influence of the air-gap spacing between two glass panes, the panel thickness, and the opening size on the sound transmission loss (TL). The results show that when the half wavelength of impinged sound is smaller than the air-gap spacing, the TL can be ...
Liangfen, Du +2 more
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A new method to compute sound transmission loss by acoustic FEM
Nihon Kikai Gakkai ronbunshu, 2014 In this paper, a new method to evaluate performance of sound insulating plates in closed medium is investigated by using acoustic finite element method (FEM) under such two conditions that plates are having free ends and that plates are simply supported.
Sachiko ISHIDA +3 more
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Effect of Humidity on Sound-Transmission Loss [PDF]
The Journal of the Acoustical Society of America, 1964 A 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.
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A NOTE ON METHODS FOR THE ESTIMATION OF THE AIRBORNE SOUND INSULATION OF TIMBER FRAME STRUCTURES [PDF]
Civil Engineering Journal, 2016 Acoustic behavior of structures with wooden elements is nowadays of great interest. At the same time, the estimation of the airborne sound insulation of timber frame structures is a complex procedure which includes the prediction of several resonances ...
Jan Šlechta
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