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Forage density effect on sound insulation properties
Grass and Forage Science, 2010AbstractOne of the main parameters affecting forage management and quality is density. Existing methods used for measuring physical properties of forage involve costly destructive analysis. A frequent and appropriate control of the forage density is required for optimizing the management of silage, hay and straw production; therefore, there is a need ...
Green, Ole +4 more
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Sound Insulation Property of Warp Knitted Fabrics
Advanced Materials Research, 2012In this study, a test device was designed and established for evaluating the sound insulation of fabrics, and six warp knitted fabrics with different parameters were chosen and tested. The results show that these fabrics have different sound insulation effect to various sound wave frequencies, and normally, the fabric with solid structure has better ...
Kun Yang, Tian Sheng Ye
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The Study of Sound-Insulating Properties of Fibrous Materials
Occupational Safety in IndustryThe results of an experimental study of sound-insulating properties of fibrous materials have been provided. A simplified methodology to measure the air noise insulation of fibrous materials has been proposed. An installation to implement the methodology includes a small-size chamber sound-insulated from the environment, a sound generator, and a sound ...
B.A. Sentyakov, A.A. Silin
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Sound insulating element having absorption properties for partition walls
The Journal of the Acoustical Society of America, 1993An air-borne sound insulating arrangement with absorption properties for surface elements, in particular for partition walls in motor vehicles, comprises a heavy layer which has foam layers on both sides which have skins on the outside or have a foil as a covering.
Klaus Wittenmayer, Rainer Prutz
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SOUND PERMEABILITY AND SOUND INSULATION PROPERTIES OF OUTER WALL APPLICATIONS
2014Closed volumes continue with our lives a certain sound level. Sound, as long as desired at this level of human impact on the positive. Therefore, in the structure of sound, the comfort level must be brought under control. This, however, to provide a rational selection of materials and methods used in accordance with the relevant physical concepts and ...
AKSOY, U.teoman, TOKTAŞ, Sefa
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Perfect sound insulation property of reclaimed waste tire rubber
AIP Conference Proceedings, 2016This article reports an experimental investigation of sound insulation and absorption performance of a materials made of reclaimed ground tire rubber which is known as un-recyclable thermoset. The bulk waste tire is processed using single step recycling methods namely high-pressure high-temperature sintering (HPHTS).
null Ubaidillah +5 more
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Effect of shear thickening fluid on the sound insulation properties of textiles
Textile Research Journal, 2013A shear thickening fluid (STF) was prepared from SiO 2 /PEG200 by ball-milling and its effect on the sound insulation properties of textile materials investigated. The rheological properties of the STF were evaluated using a high-speed rotary rheometer and a field emission scanning electron ...
Shan Li +4 more
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The Journal of the Acoustical Society of America, 1998
In wall, ceiling or roof elements, whose basic structure consists mainly of wood or wood materials, and which are provided for buildings that are constructed entirely or partly of panel construction, it is proposed in order to achieve good physical building properties and high load-carrying capacities, to fasten a veneer (4, 5) on one or on both sides ...
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In wall, ceiling or roof elements, whose basic structure consists mainly of wood or wood materials, and which are provided for buildings that are constructed entirely or partly of panel construction, it is proposed in order to achieve good physical building properties and high load-carrying capacities, to fasten a veneer (4, 5) on one or on both sides ...
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Comparative Sound Absorption and Thermal Insulation Properties of Compound Fabrics
Applied Mechanics and Materials, 2013The compound fabrics comprised of double layers of nonwovens and carbon fabrics were prepared by needle-punching and thermal bonding techniques. The thermal bonding and number of layers effect on thermal insulating and sound absorbing property have been discussed.
Jia Horng Lin +4 more
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Thermal and sound insulation properties of pumice/polyurethane composite material
Emerging Materials Research, 2020This study aimed to create a flexible composite material that can be used in special environments where heat and sound insulation is desired. Pumice with a grain size of 4.76–2.38 mm was mixed with 10, 20, 30, 40 and 50% polyurethane by volume. Sound absorption coefficient, sound transmission loss coefficient and thermal conductivity coefficient tests ...
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