An efficient frequency domain analysis method for bridge structure-borne noise prediction under train load and its application in noise reduction

Liu, Xiao; Zhang, Nan; Sun, Qikai; Wang, Zhangming; Zang, Cheng

doi:10.1016/j.apacoust.2022.108647

Cited by 16 publications

(5 citation statements)

References 19 publications

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“…Acoustic board and steel spring floating plate 58 1-5 dB Track acoustic absorber, track side noise barrier 59 1-5 dB…”

Section: Elevated Trainsmentioning

confidence: 99%

Technology-forcing to reduce environmental noise pollution: a prospectus

Kuehne,

Habtour,

Echenagucia

et al. 2024

Preprint

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Environmental movements of the late 20th century resulted in sweeping legislation and regulatory actions to reduce the prevalence of diverse pollutants. Although the consequences of noise pollution to public health, the environment, and the economy have been recognized over the same time period, noise has received far less policy attention. Correspondingly, even while recent decades have seen robust advancements in assessing the impacts of noise pollution, solutions and actual reductions in environmental noise have remained seemingly out of reach. To address this shortcoming, we developed a prospectus for environmental noise reduction through technology-forcing policies. Technology-forcing describes intent to encourage technological solutions for pollution control through policy and regulations, and has been a critical component of national and global progress in reducing environmental pollutants. We take advantage of the unique policy history for noise in the United States - which initially enacted, but then abandoned federal noise regulation. We compare this history against outcomes from contemporaneous environmental legislation for air, water, and occupational pollution control, to demonstrate the potential for technology-forcing to reduce noise pollution. Our review then identifies promising solutions, in the form of existing technologies suitable for innovation and diffusion through technology-forcing regulations and incentives. Based on this review, we outline a program for noise policy development that is intended to support efforts to reduce environmental noise pollution worldwide. The proposed program consists of three steps, 2 which are to (i) identify dominant sources of noise pollution, (ii) combine legislative or regulatory provisions with suitable systems of enforcement and incentives, and (iii) anticipate and prepare for stages of technological change. This work is intended to support and advocate for noise policies designed around technology-forcing, to advance technologies that not only improve public health and sustainable development, but ensure that these benefits are distributed equitably.

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“…Acoustic board and steel spring floating plate 58 1-5 dB Track acoustic absorber, track side noise barrier 59 1-5 dB…”

Section: Elevated Trainsmentioning

confidence: 99%

Technology-forcing to reduce environmental noise pollution: a prospectus

Kuehne,

Habtour,

Echenagucia

et al. 2024

Preprint

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“…Wu et al [13] tested the structural noise on the box girder and U-shaped girder sections of the Shanghai rail transit line, finding that the A-weighted sound pressure level (SPL) in the U-shaped girder section was 2.5 dB lower than that in the box girder section. Liu et al [14] conducted vibration and noise tests on a 30 m U-shaped girder bridge equipped with vibration-damping fasteners and found that the fasteners can effectively reduce the vibration but have little effect on acoustic control. Zbiciak et.al [15,16] carried out tests under slab mats to reduce under-rail vibrations; they found that slab mats can effectively reduce vibrations in the frequency range above 34 Hz, and the insertion loss for the 30 mm thickness of under slab mats is up to 75%.…”

Section: Introductionmentioning

confidence: 99%

Bridge-Borne Noise Induced by High-Speed Freight Electric Multiple Units: Characteristics, Mechanisms and Control Measures

Du,

Wang,

et al. 2024

Applied Sciences

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The high-speed freight electric multiple unit (EMU) is one of the important development directions for railway freight transportation. To investigate the bridge radiation noise induced by the freight EMU, a noise prediction model consisting of the containers–vehicle–track–bridge dynamic model, finite element model, and boundary element model are established and validated. Through simulation, the bridge radiation noise under different train loading conditions is compared, and the noise radiation mechanism is revealed. Moreover, the noise reduction effect of the noise wall is studied, and the influences of noise wall heights and sound absorption materials are investigated. Results indicate that the bridge sound power and the sound pressure levels (SPLs) of near-field points increase slightly with train loads in the frequency range below 20 Hz and above 125 Hz, with a maximum increase of about 6.8 dB. The structure resonance, intense local vibration, and high acoustic radiation efficiency cause strong bridge radiation noise. The noise wall can realize a good overall noise reduction effect in the sound shadow zone; nevertheless, SPLs increased in areas between the bridge and the noise wall. The ground reflection affects the superposition of transmitted, reflected, and diffracted sound waves, which causes nonlinear relationships of noise reduction effects with the noise wall height. From the perspective of human hearing sensitivity, the loudness levels of typical field points increase with the frequency in the range of 20~80 Hz, and SPLs below 25 Hz are less than the threshold of hearing. Setting the noise wall can effectively reduce the loudness levels, and the reduction effect increases with the noise wall height.

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“…28 The finite element boundary element (FE-BEM) model of a U-shaped concrete subway girder was established, and the structural vibration and noise of the bridge was predicted by using the frequency domain method. 29 For high-frequency vibration and noise simulation, statistical energy analysis (SEA) method can be more efficient than FEM and BEM, especially for structures with high modal densities, 30 such as steel bridges, with the maximum frequency of interest of over 1000 Hz. More and more hybrid methods are applied to predict wide band range noise radiation of composite bridges.…”

Section: Introductionmentioning

confidence: 99%

Sound contribution of the low frequency underwater noise radiated from a suspension bridge

Song

Lü

Xiong

et al. 2023

Journal of Low Frequency Noise, Vibration and Active Control

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For river crossing bridges, the vehicle-induced vibration can be transmitted to the bridge tower and foundation system. This vibration induced low frequency underwater noise radiation can cause great harm to aquatic organisms. A river crossing suspension bridge was selected to study the sound contribution and spatial distribution of the underwater noise. A bridge-sediment coupling finite element model was developed, and the vehicle-bridge-sediment interaction analysis was conducted to investigate the dynamic response of the coupling system. An acoustic finite element model was built to predict the underwater noise radiated from the tower and sediment, and the noise contribution of these two sound sources was compared. The research shows that the noise radiated from the bridge tower and the sediment is below 6.3 Hz, and the peak frequency is around 3.15 Hz. The noise radiated from bridge tower only has a larger contribution to the total noise level in its vicinity than the sediment, especially around the water surface. In other space, the noise generated through the sediment vibration plays a dominant role in the total noise. The radiated noise from the tower has lateral directivity, and the directivity of the sediment radiation is similar to the point sound source.

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An efficient frequency domain analysis method for bridge structure-borne noise prediction under train load and its application in noise reduction

Cited by 16 publications

References 19 publications

Technology-forcing to reduce environmental noise pollution: a prospectus

Technology-forcing to reduce environmental noise pollution: a prospectus

Bridge-Borne Noise Induced by High-Speed Freight Electric Multiple Units: Characteristics, Mechanisms and Control Measures

Sound contribution of the low frequency underwater noise radiated from a suspension bridge

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