Results 11 to 20 of about 45,283 (307)

Sound Transmission Loss Analysis on Building Materials

open access: yesInternational Journal of Automotive and Mechanical Engineering, 2018
This study is mainly to determine the sound transmission loss (STL) performance of the four selected building materials using the impedance tube. The four building materials are; autoclaved aerated concrete (AAC), laminated glass, expanded polystyrene and rockwool. Transmission loss occurs when a sound goes through a partition or barrier. The specimens
Tan Wei Hong, C. F. Sin
openaire   +3 more sources

Field sound transmission loss measurements

open access: yes, 1985
Measurements of field sound transmission loss in a number of buildings are presented, together with commentary pointing out where design errors were made and how the designs could have been improved.
Warnock, A. C. C.
openaire   +2 more sources

Sound transmission testing of polymer compounds [PDF]

open access: yes, 2012
This is the post-print version of the final paper published in Polymer Testing. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and ...
Silver, J   +3 more
core   +1 more source

Modeling sound propagation in acoustic waveguides using a hybrid numerical method [PDF]

open access: yes, 2008
Sound propagation in an acoustic waveguide is examined using a hybrid numerical technique. Here, the waveguide is assumed to be infinite in length with an arbitrary but uniform cross-section.
Kirby, R, Ray Kirby
core   +1 more source

Effect of sound-absorptive facings on partition airborne-sound transmission loss [PDF]

open access: yesThe 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
openaire   +1 more source

A point collocation approach to modelling large dissipative silencers [PDF]

open access: yes, 2005
A numerical matching technique known as point collocation is used to model mathematically large dissipative splitter silencers of a type commonly found in HVAC ducts. Transmission loss predictions obtained using point collocation are compared with exact
Lawrie, JB, Kirby, R
core   +1 more source

Noise prediction considering transmitted sound from noise barriers

open access: yesNihon 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
doaj   +1 more source

Experimental study on sound transmission loss of plenum windows [PDF]

open access: yesThe 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
openaire   +2 more sources

Experimental Investigation of Sound Transmission Loss in Double-Glazing Filled with Hydrogel

open access: yesMuhandisī-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
doaj  

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