Results 211 to 220 of about 4,534 (254)
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Development of multiple drywall with high sound insulation performance
Applied Acoustics, 2006Abstract Experimental studies for the development of multiple drywalls with a high sound insulation performance are performed. Firstly, a means of preventing the sound insulation deterioration due to the coincidence effect at high frequencies is investigated by layering two plasterboards with different physical characteristics.
Toshio Matsumoto +3 more
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Impact sound insulating performance of access floors
The Journal of the Acoustical Society of America, 2008Access floor are raised floor systems consisting of modular panels supported by posts at a certain height to create a gap below the floor surface. Electrical wires and pipes can be placed inside the gap in order to avoid exposed installations and to simplify operations involving the inspection, repair, changing, or adding of system elements. This paper
ASDRUBALI, Francesco +1 more
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Sound insulation performance in shipboard
The Journal of the Acoustical Society of America, 2001This work deals with correlation between the field sound transmission loss (FSTL) in cabins and the sound transmission loss (STL) in reverberation chambers. To this end, experimental investigations are carried out on various ships such as a passenger, a plant ship, and a container ship. Comparisons of FSTLs and STLs indicate that a passenger ship shows
Hyun-Ju Kang +2 more
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Work performance in private office rooms: The effects of sound insulation and sound masking
Building and Environment, 2016Abstract Our purpose was to examine whether present sound insulation guidelines of private office rooms provide optimal cognitive performance and acoustic satisfaction. 32 voluntary students participated in our laboratory experiment. The experiment simulated two adjacent office rooms. Speaker was in room 1 and listener in room 2.
Varjo, Johanna +5 more
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Sound Absorption Performance of Membrane Covered Insulators
SAE Technical Paper Series, 2001<div class="htmlview paragraph">Molded fiberglass hood insulators (hoodliners) and engine side dash insulators (dashliners) are widely applied in vehicles for noise control. These absorptive components reduce reverberant “build-up” in the engine compartment and thus cut the noise transmission into the passenger compartment. Due to restrictions of
Geoffrey Shao, Trevor Billy, Tony Hughes
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Performance Equivalent Thickness of a Sound Insulation System
SAE Technical Paper Series, 2013<div class="section abstract"><div class="htmlview paragraph">Vehicle sound insulation systems, such as front of dash mats or carpet assemblies, etc. play a key role in controlling vehicle interior noise. However, dash and carpet insulators are often designed to have varied thickness in compliance with packaging constraints or to fulfill ...
Chong Wang, Katherine Tao, Alan Parrett
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Study on Sound Insulation Performance of Vehicle Dash Reinforcements
SAE Technical Paper Series, 2014<div class="section abstract"><div class="htmlview paragraph">Dash panel is the most important path of structure-borne and air-borne interior noise for engine-driven vehicles. Reinforcements, which are added to dash panel, are mainly designed in order to suppress the structure-borne noise contribution from the dash panel.</div><div
Ki-Sang Chae +3 more
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A pilot study on the sound insulation performance of plenum doors
INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2023Demands for natural ventilation is inaugurated recently, particularly after the COVID-19 outbreak. Various ventilating windows have been proposed, one of which a plenum window has been studied for these years. Since the COVID outbreak shops and restaurants often leave doors opened for ventilation reasons during their business hours.
Kimihiro Sakagami +2 more
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Sound Insulation Performance of Finite Orthotropic Sandwich Panels
Applied Mechanics and Materials, 2013A theoretical model for calculating sound transmission loss (STL) of finite honeycomb sandwich panels is developed. The accuracy of the theoretical predictions is checked against experimental data, with good agreement achieved. Numerical analysis shows that increasing face sheet thickness can improve STL effectively, which is much more effective than ...
Sheng Chun Wang +4 more
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Parametric study of the sound insulation performance of a ventilation window.
The Journal of the Acoustical Society of America, 2010The sound insulation performance of a specifically designed facade device, which allows natural ventilation but can provide relatively high-sound insulation, is studied experimentally in the present study. The experiment was carried out in two coupled rooms with one of them very reverberant and the other made semi-anechoic.
S. K. Tang, D Suen, S. K. Chan
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