Railway Noise Reduction Technology Using a Damping Material

Koller, Günther; Kalivoda, M.; Jaksch, Martin; Muncke, Martin; Oguchi, Takashi; Matsuda, Yoshifumi

doi:10.1007/978-4-431-53927-8_19

Cited by 5 publications

(3 citation statements)

References 1 publication

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“…The train is a more effective mode of transportation than others because it can save energy and be efficient (Koller et al, 2012;Santos et al, 2016Santos et al, , 2017. In Indonesia, the first railway network was constructed in Semarang city in 1867 by the Dutch colonial government (Muhajir et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Frequency and Amplification for Assessing site Effects and PVS in the Padang City Railway

Pohan M.Si,

Pujiastuti,

Syarah

et al. 2023

J. Ilmu Fis.

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The train uses a special line in the form of railroad tracks that produce vibrations during movement. This study aims to determine the type of soil layer and the peak particle velocity due to the train around the Padang City train line. The acquisition was carried out at 8 points with a recording duration of 65 minutes using three geophone components. Microtremor data was analyzed using horizontal to vertical spectral ratio (HVSR) method. The results show that the research area has a type of surface layer of soil is sediment with a thickness of 30 meters or more. This is indicated by the dominant frequency value ranging from 0.64 Hz – 1.67 Hz. The research area has an amplification value ranging from 0.85 to 1.29. The train vibration has a dominant frequency ranging from 2.20 Hz – 13.54 Hz and an amplification of 1.11 – 1.82. The particle velocity values obtained from the PVS values ranged from 0.1605 mm/s – 0.7592 mm/s. The research area can be categorized as safe from train vibrations because of the low amplification value and the PVS value which is below the safe limit (<3 mm/s) according to SNI 7571:2010.

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Section: Introductionmentioning

confidence: 99%

“…The vibration of the train is the result of the irregularity of the surface of the wheels and rails due to the rise and fall of the axle above the bearing which is then transmitted to the ground (Connolly et al, 2016). Train noise consists of rolling noise, drive-system noise, and structure noise (Asmussen et al, 2008;Koller et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Frequency and Amplification for Assessing site Effects and PVS in the Padang City Railway

Pohan M.Si,

Pujiastuti,

Syarah

et al. 2023

J. Ilmu Fis.

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“…Koller et al. [18] found an overall noise reduction after adding CLD to the web of a bridge on the Austrian Federal Railways Line and performing noise reduction tests.…”

Section: Introductionmentioning

confidence: 99%

Applying constrained layer damping to reduce vibration and noise from a steel-concrete composite bridge: An experimental and numerical investigation

Liu

Zhang

et al. 2018

Jnl of Sandwich Structures & Materials

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Structure-borne noise from railway bridges has become increasingly severe due to increased train speeds and axle loads. Constrained layer damping can suppress structural vibration and noise considerably across a wide frequency range by dissipating vibrational energy via damping layer shear deformation. This paper proposes a theoretical method of calculating the train-induced vibration and noise of a constrained layer damping-enhanced railway bridge based on the train–track–bridge coupled vibration, the modal strain energy method, and statistical energy analysis. First, the vibration responses of bridge decks were obtained via train–track–bridge coupled vibration calculations. Second, the constrained layer damping subsystem modal loss factors were determined via modal strain energy analysis and converted to damping loss factors in 1/3 octave band. Third, upon substituting the vibration energies of the decks and the damping loss factors of constrained layer damping subsystems into the statistical energy analysis power balance equations, the transmitted vibration energy results from various bridge subsystems were determined by solving the referenced equations. The structure-borne noise from the bridge was finally determined by analyzing the vibratory energies of all of the bridge subsystems using vibro-acoustic theory. Numerical analysis and field measurements of vibration and noise from a three-span steel–concrete composite bridge before and after constrained layer damping installation were performed. The predicted train-induced vibration and noise agreed well with the measured results. The stringer web and flange vibration velocity levels were reduced by 10.5 dB and 6.1 dB, respectively, and the sound pressure level at a measurement point 25 m (horizontal) from the track centerline and 1.5 m off the ground decreased by 4.3 dB(A).

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Railway Disturbances on Wildlife: Types, Effects, and Mitigation Measures

2017

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In this chapter, we review the level of disturbance caused by railways due to noise and vibration, air, soil and water pollution, and soil erosion. There is evidence that soil and hydrology contamination may affect vegetation and aquatic fauna while noise can affect terrestrial vertebrates. In fact, noise, light, and vibration due to railways have been observed to reduce the abundance and richness of some insects, amphibians, and birds, and to cause avoidance behaviour on predators. Interestingly, reptiles, some bird species, small mammals, and large mammals seem to ignore rail traffic and benefit from the vegetation planted in the railway verges that provide food and shelter. Some engineering structures have been implemented to reduce the effects of railway disturbance: rail fastenings, rail dampers, under-sleeper pads, and noise barriers are applied to minimize noise and vibration; washing with water and cleaning the ballast are used to mitigate soil pollution; and grass plantation, the use of gypsum and application of compost/mulch coverage, are applied to control soil erosion.

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Railway Noise Reduction Technology Using a Damping Material

Cited by 5 publications

References 1 publication

Frequency and Amplification for Assessing site Effects and PVS in the Padang City Railway

Frequency and Amplification for Assessing site Effects and PVS in the Padang City Railway

Applying constrained layer damping to reduce vibration and noise from a steel-concrete composite bridge: An experimental and numerical investigation

Railway Disturbances on Wildlife: Types, Effects, and Mitigation Measures

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