New methods of noise reduction in railway carriages

Leštinský, Lukáš; Zvolenský, Peter

doi:10.1016/j.trpro.2019.07.110

Cited by 7 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The applied methodological approach of noise reduction due to the installation of damping materials in the vibration excitation zones generally leads to good results. A similar situation, considered in the work of L. Leštinský [9], made it possible to apply the fast Fourier transform in automatic mode and reduce the noise from the train by 20-25 dB.…”

Section: Discussionmentioning

confidence: 93%

“…Different approaches have been suggested in articles addressing this problem. A grinding apparatus for weld processing on helically welded pipes was proposed by Y. Zhu et al [17], W. Guo et al [7], and L. Leštinský et al [9]. The utilization of robotic systems in technology operations minimizes the effects of dangerous production factors, automating the process for workers.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ensuring safe working conditions during manual abrasive processing of welded joints of frame elements of transport vehicles

Beskopylny,

Chukarin,

Isaev

et al. 2024

BIO Web Conf.

View full text Add to dashboard Cite

One of the essential problems of current mechanical engineering is the re-duction of noise and vibration of technological processes. Excessive noise not only leads to the developing of operator illnesses, but is also an indicator of the poor quality of the final product. The article deals with the problem of reducing hazardous and harmful production factors during manual processing of welded joints of vehicle body elements. An obligatory stage after welding is the mechanical abrasive treatment of welded joints to remove stress concentrators and straighten the profile. The existing technology uses a hand-held grinder, which creates a lot of noise and vibration and reduces the accuracy of welding seams. It is shown that with the existing technology, the noise levels are exceeded in the frequency range of 250…8000 Hz and reach 20 dB. To reduce the noise level, theoretical results were obtained for the dependences of the vibrational velocities of the abrasive tool and the results of experimental studies of the noise and vibration spectra during manual abrasive processing of welded seams of body structures. Obtained mathematical models enable the calculation of sound pressure level for abrasive processing. A scheme of a device is proposed that makes it possible to reduce the level of sound pressure during manual abrasive processing of welded seams of frame structures and its advantage over vibration damping coatings is presented. The combination of an integrated approach and protective equipment can decrease the sound pressure level by as much as 30 dB.

show abstract

Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Ensuring safe working conditions during manual abrasive processing of welded joints of frame elements of transport vehicles

Beskopylny,

Chukarin,

Isaev

et al. 2024

BIO Web Conf.

View full text Add to dashboard Cite

show abstract

“…For I8-I9, for the chosen defining factor at the established alpha confidence level, the p value reliability came out to be (0.0374). Since the p value of the pair < p value determined, it can be evaluated as reliable; i.e., we assume that dependence occurs in this pair [14][15][16].…”

Section: H3mentioning

confidence: 99%

Modernization of Railway Wagons for Customer Satisfaction and Safety

Nedeliaková,

Valla,

Masár

2024

Vehicles

View full text Add to dashboard Cite

This article focuses on the assessment of the efficiency of the modernization of railway wagons intended for passenger transport. The modernization of railway wagons is an important step towards ensuring the safer and more efficient operation of railways. However, this modernization is not without risks and, in addition to its many positive effects, it can also bring new challenges in the form of breakdowns and technical problems. Failures in passenger rail vehicles are a challenge facing manufacturers and transport operators, and identifying the relationships between these failures can help to improve the design, manufacture, and maintenance of these vehicles. Passenger rail vehicle failures can vary in nature, whether mechanical, electrical, or inside the vehicle. This paper attempts to provide a comprehensive view of the effectiveness of passenger rail car retrofitting based on the data collected and statistical analyses. The article further focuses on the description of selected rail passenger wagons, describes the analyses of the statistical data using the correlation between the selected rail wagon failures and their significance, in addition to whether the impact of modernization reduces the number of rail wagon failures. The results of this statistical analysis can be used to better understand the impact of modernization on different aspects of passenger transport and will help in making future investment and policy decisions in this area. © 2017 Elsevier Inc. All rights reserved.

show abstract

“…Based on old studies, noise and annoyance stemming from railway transportation are relatively less than other modes [7][8][9][10], but the increasing amount of laid out railway networks throughout the world jeopardizes public health [11][12][13][14][15][16][17]. Especially in passenger transportation, reducing noise is essential for achieving a higher level of comfort [18]. Noise reduction efforts at railways mainly concentrated on freight traffic because of the necessities such as long rolling stocks, braking systems, and night running time-limited by operable legislations [19].…”

Section: Introductionmentioning

confidence: 99%

Demiryolu yuvarlanma yüzeyi gürültüsü ve zemin titreşimi ve hat ilişkili azaltma önlemleri-güncel gelişmeler

CAN

Torun

2022

Artıbilim: Adana Alparslan Türkeş Bilim Ve Teknoloji Üniversitesi Fen Bilimleri Dergisi

View full text Add to dashboard Cite

Demiryolu gürültü ve titreşim kirliliği, özellikle demiryolu hattına yakın veya yakınında yaşayanlar olmak üzere, dünya çapında milyonlarca insanı etkilemektedir. Demiryolu ulaşım modu çevre dostu bir teknoloji olarak bilinse de gürültü kirliliğine katkısı azımsanmayacak kadar az değildir. Birçok deneysel ve gözlemsel çalışma, gürültü ve titreşimin insan sağlığı üzerindeki olumsuz etkisini göstermektedir. Bu makalenin birincil amacı, başta yuvarlanma yüzeyi gürültüsü ve zemin titreşimi olmak üzere birincil kaynaklardan kaynaklanan demiryolu gürültüsünün kaynağını ve demiryolu hattı bakış açısıyla güncel demiryolu gürültüsü azaltma önlemlerinin geliştirilmesini gözden geçirmektir.

show abstract

New methods of noise reduction in railway carriages

Cited by 7 publications

References 2 publications

Ensuring safe working conditions during manual abrasive processing of welded joints of frame elements of transport vehicles

Ensuring safe working conditions during manual abrasive processing of welded joints of frame elements of transport vehicles

Modernization of Railway Wagons for Customer Satisfaction and Safety

Demiryolu yuvarlanma yüzeyi gürültüsü ve zemin titreşimi ve hat ilişkili azaltma önlemleri-güncel gelişmeler

Contact Info

Product

Resources

About