Results 261 to 270 of about 7,507,875 (297)

A pilot study on the sound insulation performance of plenum doors

INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2023
Demands 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, Haruhi Inoue, Takeshi Okuzono   +2 more
openaire   +1 more source

Sound Insulation Performance of Finite Orthotropic Sandwich Panels

Applied Mechanics and Materials, 2013
A 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, Wei Dong Shen, Jia Feng Xu, Pei Wen Wang, Yun Li   +4 more
openaire   +1 more source

Changes in Floor Impact Sound Insulation Performance with Time

Applied Mechanics and Materials, 2015
Floating floor structures installed with resilient materials are commonly used to reduce sound from floor impacts. Resilient materials minimize the transmission of vibrations by absorbing shock vibrations occurring on the upper part. The floor impact sound reduction performance of resilient materials is related to the dynamic stiffness, which is a ...
Kyoung Woo Kim, Jun Oh Yeon, Kwan Seop Yang   +2 more
openaire   +1 more source

Research on the Insulation Performance of Sound-Isolating and Decoupled Tiles

Applied Mechanics and Materials, 2013
The acoustic performance of sound-isolating and decoupled tiles is studied from macroscopic and microscopic. First, the sound absorption and reverse sound insulation performance of sound-isolating and decoupled tiles is studied based on laminated media; then the acoustic decoupling materials influence on acoustic radiation of double cylindrical shell ...
De Jin Qian, Xue Ren Wang, Xu Hong Miao
openaire   +1 more source

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, Seung Hwan Lim, Ji Woo Yoo, Seok-Gil Hong   +3 more
openaire   +1 more source

Parametric study of the sound insulation performance of a ventilation window.

The Journal of the Acoustical Society of America, 2010
The 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
openaire   +1 more source

A study on the improvement of sound insulation performance of aluminum chassis

INTER-NOISE and NOISE-CON Congress and Conference Proceedings
In recent years, the automobile industry has rapidly shifted towards electric vehicles, with an increasing number of vehicles using aluminum instead of steel for a significant portion or the entire or part of the vehicle body. Aluminum body panels reduce sound insulation performance compared to steel panels because they depend on surface density. This
NAKYEONG YU, Yoonsang YANG, Seung LEE
openaire   +1 more source

Sound Insulation Performances of Linters Made of Textile Waste

Journal of Fashion Technology & Textile Engineering, 2015
From the beginning of the 20th century, the use of insulation materials has become a necessity and the production of appropriate materials for insulation is of great importance. Although most insulation materials are produced from inorganic materials, recently, some of these materials have been prohibited due to their suspected health risks.
openaire   +1 more source

Low impact renovations with high performance sound insulation

The Journal of the Acoustical Society of America, 2005
Architectural renovations, although often driven by visual objectives, are a good opportunity to pursue acoustical interventions involving both sound intrusions into a space, and sound quality of the acoustic environment within the space. A high priority is to keep the construction impact low as it affects both project cost and schedule.
Kenneth P. Roy, Sean D. Browne
openaire   +1 more source

Sound insulation performance of prefabricated cabins in cruise ships

Noise Control Engineering Journal, 2012
In this paper, sound insulation performance of a prefabricated cabin mock-up is studied. The cabin mock-up consists of two identical rooms whose partition, ceiling, and side walls are sandwich panels composed of thin metal sheets and mineral wools. The floor is a steel plate with stiffeners, and plate thickness is 6 mm.
Sang-Ryul Kim, Hyun-Sil Kim, Jae-Seung Kim, Bong-Ki Kim, Seong-Hyun Lee   +4 more
openaire   +1 more source