Results 11 to 20 of about 7,507,875 (297)
Sound radiation and sound insulation performances of maritime bulkheads
, 2019 The research of materials matching low weight and high resistance has always been a key factor in the shipbuilding industry to increase performances and loading capacity. Nowadays, other issues add up to economical convenience, and building quiet ships is important not only for passengers and cabin crew, but also to make harbor areas more comfortable ...
Piana E. A. +3 more
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A Particle Reinforced Gradient Honeycomb Sandwich Panel for Broadband Sound Insulation
Mathematics, 2023 The sound insulation capacity of traditional sound insulation boards is limited by the law of mass, and any improvement in sound insulation capacity contradicts the demand for light weight.
Geman Shi +3 more
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Comparison between Chinese Code and Eurocode on the impact sound insulation requirements of the residential floor [PDF]
MATEC Web of Conferences, 2019 At present, the impact sound insulation performance of the residential floor attracts increasing attention, which is a critical index to evaluate the physical performance of the residential building.
Zhang Xiaoyu, Hu Xiamin
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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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