Vibroacoustic soundproofing for helicopter interior
Aviation, 2023 As VIP passengers generally want to fly civil and executive jets where vibratory and acoustic environment is smoother than on the normal jets. Helicopter interior noise is generated by main and tail rotors, engines, main gearbox, and aerodynamic ...
Pavithra Nagaraj +2 more
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Application of Soundproofing Materials for Noise Reduction in Dental CAD/CAM Milling Machines
Applied Sciences (Switzerland), 2020 Soundproofing materials are widely used in various fields as a passive measure to reduce noise. Despite this, there have been a few studies on the application of soundproofing materials on medical equipment, which is the main cause of noise in a medical ...
Eun-Sung Song +2 more
exaly +3 more sources
Studies on Dual Helmholtz Resonators and Asymmetric Waveguides for Ventilated Soundproofing [PDF]
SensorsAchieving the simultaneity of ventilation and soundproofing is a significant challenge in applied acoustics. Ventilated soundproofing relies on the interplay between local resonance and nonlocal coupling of acoustic waves within a sub-wavelength ...
Inkyuk Han, Inho Lee, Gwanho Yoon
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Soundproofing panel with a maximum soundproofing ability [PDF]
Инженерно-строительный журнал, 2010 The aim of our development is increasing the sound insulation abilities to maximum possible value. Soundproofing panel with a maximum soundproofing ability, protected by patent to Russia, pertains to technical protection facility against noise spreading ...
V.E. Abrakitov
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Development and Characterization of a Flexible Soundproofing Metapanel for Noise Reduction
Applied Sciences (Switzerland)This study addresses the critical challenge of developing lightweight, flexible soundproofing materials for contemporary applications by introducing an innovative Flexible Soundproofing Metapanel (FSM).
Bongjoong Kim
exaly +3 more sources
Soundproofing presses by placing its nodes in a soundproof casing, including drive components [PDF]
E3S Web of Conferences, 2020 Noise is one of the most unfavorable environmental factors in production facilities, for which it is most difficult to achieve compliance with sanitary standards.
Pushenko Sergei +2 more
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Improvement of Sound Insulation Through Double-Panel Structure by Using Hybrid Local Resonator Array [PDF]
Archives of Acoustics, 2023 In this paper, we present one approach to improve the soundproofing performance of the double-panel structure (DPS) in the entire audible frequencies, in which two kinds of local resonances, the breathing-type resonance and the Helmholtz resonance, are ...
Kyong-Su Ri +2 more
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THE EFFECT OF THICKNESS AND DENSITY OF THE RECYCLED CAR TIRE PANELS ON SOUND INSULATION [PDF]
e-Zbornik. Elektronički Zbornik Radova Građevinskog Fakulteta, 2021 The article is devoted to the task of improving sound insulation in the construction of internal walls. For the experiment purposes wall panels were used that are made using rubber crumb as a separate structural layer.
Anđelko Crnoja +3 more
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Impact of the Soundproofing in the Cavity of the Synthetic Jet Actuator on the Generated Noise
Fluids, 2022 The synthetic jet actuator (SJA) generated high noise which limits the area of its application. In this paper, the five actuators with different types of soundproofing in the cavity were tested and compared to the classic actuator. The resistance and the
Emil Smyk, Marek Markowicz
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Simple hearing test utilizing a soundproofing headphone with acoustic filters
Biomedical Engineering Advances, 2023 Hearing loss is a significant quality-of-life (QOL) issue in aging populations and is linked to social isolation, dementia, and depression. Early detection and treatment of hearing loss are critically important aspects of preventing cognitive decline and
Fumiya Mizukoshi +2 more
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