Results 11 to 20 of about 4,534 (254)
Research on the Sound Insulation Properties of Membrane-type Acoustic Metamaterials [PDF]
E3S Web of Conferences, 2021 Low- and medium-frequency noise from ship cabins is difficult to control effectively. Excessive noise can seriously affect the acoustic stealth performance of ships.
Hao Jinyu +4 more
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Experimental and Numerical Investigation of Acoustic Performance for Full-Sized SPS
Shock and Vibration, 2022 The sound insulation of a sandwich plate system (SPS) was measured by the sound pressure method in fixed support boundary conditions and reverberation sound field. The results were compared with those obtained using the finite element method.
Yu Gao, Kun Liu, Wenan Jiang, Yubin Fang
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Acoustics, 2023 The body of a high-speed train is a composite structure composed of different materials and structures. This makes the design of a noise-reduction scheme for a car body very complex. Therefore, it is important to clarify the key factors influencing sound
Ruiqian Wang +4 more
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Applied Sciences, 2022 The double-layer plate structure in passive sound insulation systems can improve the high-frequency sound insulation performance, but it is still not ideal in the low-frequency region.
Likang Wang +4 more
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Low-Frequency, Open, Sound-Insulation Barrier by Two Oppositely Oriented Helmholtz Resonators
Micromachines, 2021 In this work, a low-frequency, open, sound-insulation barrier, composed of a single layer of periodic subwavelength units (with a thickness of λ/28), is demonstrated both numerically and experimentally.
Yi-Jun Guan +4 more
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COMSOL-based acoustic performance analysis of combined cavity anechoic layer
Zhongguo Jianchuan Yanjiu, 2020 Objectives In view of the poor sound insulation performance and pressure resistance of anechoic layer with single cavities at low frequencies, the finite element software COMSOL is used to calculate the acoustic performance and deformation of a combined ...
KE Liju, LIU Chengyang, FANG Zhi
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Sound insulation performance and modal analysis of asymmetrical insulating laminated glass
Journal of Low Frequency Noise, Vibration and Active Control, 2023 Windows are commonly the primary way for noise to enter the building environment. Most windows achieve higher sound insulation targets by simply increasing glass thickness or laminate. However, the glass thickness cannot be increased freely due to the window frame’s limitation. This research selects eleven kinds of asymmetric insulating laminated glass
Xi Zhu +4 more
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Journal of Natural Fibers, 2022 Natural fiber-based hybrid composites have been explored in this study as possible structural materials. Detailed investigation of sound insulation property of a series of hybrid and nonhybrid composites has been carried out using impedance tube having ...
Vikas Kumar Singh, Samrat Mukhopadhyay
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Thermal and sound insulation performance assessment of vacuum insulated composite insulation panels for building façades [PDF]
Advances in Building Energy Research, 2018 Composite insulation panels (CIPs) currently used in building façades require significant design changes e.g. increased thickness to realise higher thermal and sound insulation performance. This study deals with the manufacturing and characterisation of smart façade panels for achieving higher thermal and sound insulation dual characteristics in one ...
O'Flaherty, Fin, Alam, Mahmood
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Estimating the performance of heavy impact sound insulation using empirical approaches
Journal of Asian Architecture and Building Engineering, 2021 With an increasing demand for quieter residential environments, impact sound insulation for floating floors is gaining importance. However, existing methods for estimating the performance of heavy impact sound insulation are limited by their inability to
Jongwoo Cho +5 more
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