Hybrid sound-absorbing foam materials with nanostructured grit-impregnated pores
Sign Up to like & getrecommendations! Published in 2018 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2018.04.024
Abstract: Abstract A new approach to the design of sound-absorbing materials was experimentally investigated. Improved acoustic properties were obtained in a wider frequency range through the impregnation of nanoporous grit into foam pores. Using this approach,… read more here.
Keywords: sound absorbing; hybrid sound; grit; foam materials ... See more keywords
Circular reutilization of coffee waste for sound absorbing panels: A perspective on material recycling.
Sign Up to like & getrecommendations! Published in 2020 at "Environmental research"
DOI: 10.1016/j.envres.2020.109281
Abstract: The increase in coffee consumption has led to increased production of coffee waste. Methods to recycle coffee waste are constantly being researched. Coffee powder is a porous material that can effectively be used to absorb… read more here.
Keywords: sound absorbing; absorbing panels; coffee waste; material ... See more keywords
Layout optimization of porous sound-absorbing material in mid-frequency vibro-acoustic systems
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Fluids and Structures"
DOI: 10.1016/j.jfluidstructs.2020.103197
Abstract: Abstract In this paper, a new layout optimization technique is integrated with a statistical modal energy distribution analysis (SmEdA) model to obtain the optimal layout of a porous sound-absorbing material for noise control in mid-frequency… read more here.
Keywords: sound absorbing; energy; frequency; absorbing material ... See more keywords
Broadband underwater sound absorbing structure with gradient cavity shaped polyurethane composite array supported by carbon fiber honeycomb
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115375
Abstract: Abstract A sound-absorbing periodically arrayed structure (SPAS) based on the combined effects of cavity resonance and impedance transition is designed. Different types of polyurethane composites are integrated to fabricate the sound-permeable layer, the gradient resonant… read more here.
Keywords: sound absorbing; carbon fiber; fiber honeycomb; cavity ... See more keywords
Multifunctional sound-absorbing and mechanical metamaterials via a decoupled mechanism design approach.
Sign Up to like & getrecommendations! Published in 2022 at "Materials horizons"
DOI: 10.1039/d2mh00977c
Abstract: Multifunctional materials are in high demand for practical engineering applications. Owing to the ubiquitous noise and impact energy hazards in many settings, traditional materials and conventionally designed metamaterials are incapable of preventing these types of… read more here.
Keywords: via decoupled; design; absorbing mechanical; absorption ... See more keywords
A tunable sound-absorbing metamaterial based on coiled-up space
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5026022
Abstract: This paper presents a theoretical, numerical, and experimental investigation of a deep-subwavelength absorber based on the concept of coiled-up space. By adjusting a partition panel in the cavity to form an unequal-section channel, it is… read more here.
Keywords: absorption; sound absorbing; space; absorbing metamaterial ... See more keywords
A broadband sound-absorbing panel based on the coiled coplanar absorber with multiple absorption peaks
Sign Up to like & getrecommendations! Published in 2021 at "Physica Scripta"
DOI: 10.1088/1402-4896/abea30
Abstract: We report an ultrathin sound-absorbing panel with a continuous sound absorption greater than 0.7 over a frequency bandwidth of about 600 Hz. The panel is constructed by several different individual absorbers, and each absorber is… read more here.
Keywords: absorption; sound absorbing; coiled coplanar; absorbing panel ... See more keywords
The application of microperforated panel in duct systems
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.4988652
Abstract: Microperforated panels (MPPs) are usually considered to be an alternative sound absorbing surface treatment in architectural acoustics applications, where they can serve as effective, fiber-free replacements for the more traditional glass fibers and other porous… read more here.
Keywords: sound absorbing; glass; surface; application ... See more keywords
Fabrication of cost-effective double layers composite for efficient sound-absorbing based on sustainable and flame-retardant jute fabrics
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Industrial Textiles"
DOI: 10.1177/15280837221098197
Abstract: Noise pollution is rapidly increasing, posing a health risk, particularly in the low frequency range. Therefore, the development of cost-effective, environmentally friendly and efficient audible sound absorbing materials is a necessary and crucial process. To… read more here.
Keywords: cost effective; jute fabrics; flame; sound absorbing ... See more keywords
Sound Absorbing Systems Made of Wood cross Sections Paired with Void Cavities - A First Investigation
Sign Up to like & getrecommendations! Published in 2021 at "Wood and Fiber Science"
DOI: 10.22382/wfs-2021-07
Abstract: This study investigates the possibility of exploiting the porous structure of wood for absorbing sound. With this aim, the following system is proposed: 1 ) the cross section of wood should be exposed to sound… read more here.
Keywords: sound absorbing; sound; cross sections; wood ... See more keywords
Acoustical Characterization and Modeling of Sustainable Posidonia Fibers
Sign Up to like & getrecommendations! Published in 2023 at "Applied Sciences"
DOI: 10.3390/app13074562
Abstract: This article presents the results of an acoustic characterization of fibers obtained from Posidonia Balls (scientific name: Aegagropiles), produced by a marine plant (Posidonia oceanica) that is widespread in the Mediterranean Sea and can be… read more here.
Keywords: characterization modeling; posidonia; modeling sustainable; acoustical characterization ... See more keywords