Methods of Noise and Vibration Protection on Urban Rail Transport

Dudkin, E.P.; Andreeva, L.A.; Sultanov, N.N.

doi:10.1016/j.proeng.2017.05.129

Cited by 18 publications

(17 citation statements)

References 1 publication

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“…In this case, means and methods can be used as an additional disperse system, which make it possible to organize the process of attenuating the strength of a sound wave at the stage of its formation before radiation begins in the internal volume of the production room. An example of such systems can be both individual resonators and resonator systems placed directly at the source of sound wave generation [6][7][8][9]. As soundproof fences, walls, ceilings, partitions, glazed openings, windows, doors can be considered.…”

Section: Resultsmentioning

confidence: 99%

“…Workers exposed to noise most often complain of headaches, which may have different intensities and localizations, dizziness with a change in body position, memory loss, increased fatigue, drowsiness, sleep disturbances, emotional instability. Despite the intensive development of industries and introduction of new production technologies that can reduce the percentage of human involvement in the process, the number of people employed at work under the influence of increased noise levels increases annually [7,9]. Analysis of working conditions at enterprises of various sectors of the economy allows us to conclude that construction workers are more often than others affected by the negative influence of noise in the course of their work.…”

Section: Introductionmentioning

confidence: 99%

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Building a physical model of acoustic air pollution reduction process for brick manufacturing enterprises

2020

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The article is devoted to the study of the air acoustic pollution reduction process for brick manufacturing enterprises based on the physical and energy approach based on the theory of dispersed systems. The authors performed physical modeling of the process taking into account the properties of all the objects taking part in it at each stage and the features of the space in which it is implemented. Based on the constructed model, a mathematical description of the probability of the process and its effectiveness is obtained.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Building a physical model of acoustic air pollution reduction process for brick manufacturing enterprises

2020

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“…However, the high density rail transit network and the fast operating speed inevitably cause more obvious environmental vibrations and noise problems [ 1 ]. A common measure to decrease noise emissions and vibrations involves the installation of resilient elements in the railway track [ 2 , 3 ], such as rail pads [ 4 ], under-sleeper pads (USM) [ 5 ], under-ballast mats (UBM) [ 6 ], crumb rubber [ 7 ], and slab-track mats (STMs) [ 8 , 9 , 10 ]. The damping pad floating slab track (DPFST), one of the best measures to reduce vibrations, has been widely used as the main track structure type in the vibration reduction demand area of Guangzhou (160 km/h URT).…”

Section: Introductionmentioning

confidence: 99%

Evaluation Method of the Vibration Reduction Effect Considering the Real Load- and Frequency-Dependent Stiffness of Slab-Track Mats

et al. 2021

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The purpose of this research was to investigate and improve the accuracy of the existing slab-track mat (STM) specifications in the evaluation of the vibration reduction effect. The static nonlinearity and dynamic mechanical characteristics of three types of STMs were tested, and then a modified fractional derivative Poynting–Thomson (FDPT) model was used to characterize the preload and frequency dependence. A modified vehicle–floating slab track (FST) coupled dynamic model was established to analyze the actual insertion loss. The insertion loss error evaluated by the frequency-dependent tangent stiffness increased with the increase in STM nonlinearity, and the error obtained by the third preload tangent stiffness was usually greater than that of the second preload. Compared with the secant stiffness, the second preload frequency-dependent tangent stiffness was more suitable for evaluating STMs with high-static–low-dynamics (HSLD) stiffness. In order to reflect the frequency dependence effect and facilitate engineering applications, it is recommended that second preload tangent stiffness corresponding to the natural frequency of the FST be used for evaluation. Furthermore, the insertion loss of the STMs with monotonically increased stiffness decreased as the axle load increased, and the opposite was true for the STMs with monotonically decreased stiffness. The vibration isolation efficiency of the STMs with HSLD stiffness was both stable and better than that of the STMs with monotonic stiffness.

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“…In recent years, there has been an increasing interest in environmental noise, particularly noise caused by the different means of transport [1][2][3]. It's a severe problem, because it has negative impacts on the humans' health [4,5].…”

Section: Introductionmentioning

confidence: 99%

The effect of noise on the comfort of passengers inside the tramway and its impact on traffic congestion in the urban area

Khelf¹,

Boukebbab²

2018

J. vibroeng.

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The tramway is a mean of transport which is used frequently in many cities around the world, because it improves the offer of public transport through its important capacity of transporting. This may ameliorate the state of road traffic by reducing the number of vehicles along the tram line. Despite these advantages, there are some problems related to users' comfort like the noise caused during the operation. This study is focused on the human perception of the noise levels detected inside the tramway. The objective of this work is to identify and analyze the level of noise detected inside tramway, to know in which cabin and section the high noise is recorded, to find the causes and to show if the measured noise influences the comfort of passengers. For that, noise measurements are taken in all cabs and along the tram line. The results show that the levels of noise inside the seven cabins is different. The high noise is detected in the motorized cabins and in many sections, like the curves and also in other sections. The results show also that this noise affects negatively on the comfort of passengers. Finally, different solutions that can contribute to reduce effectively the noise to make the tram more comfortable and efficient to relieve traffic congestion in urban areas are presented.

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Methods of Noise and Vibration Protection on Urban Rail Transport

Cited by 18 publications

References 1 publication

Building a physical model of acoustic air pollution reduction process for brick manufacturing enterprises

Building a physical model of acoustic air pollution reduction process for brick manufacturing enterprises

Evaluation Method of the Vibration Reduction Effect Considering the Real Load- and Frequency-Dependent Stiffness of Slab-Track Mats

The effect of noise on the comfort of passengers inside the tramway and its impact on traffic congestion in the urban area

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