Use of vibro-isolation and non-conventional materials for reducing noise of railway wagons

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F21%3A10248185" target="_blank" >RIV/61989100:27230/21:10248185 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Use of vibro-isolation and non-conventional materials for reducing noise of railway wagons

Popis výsledku v původním jazyce

The implementation of European directives in practice is also closely related to the reduction of noise emissions from cargo wagons with the aim of protecting the environment. Reduction of the dynamic load of railway wagons must be taken into account during their design using appropriate vibro-isolation and unconventional materials in the production of individual components so as to reduce the transmission of structural noise from its main source. The paper analyses the procedures and conditions to reduce the transmission of vibration to the undercarriage and its superstructure, which is a tank, using suitable vibro-isolation materials both in strength and with required transmission loss. For this purpose, the paper analyses the frequency distribution of the vibration generated by the main sources of the wagon and its attenuation on individual components. The modal analysis of the tank wagon was complemented by the gravitational impact of the wheel with the rail generating its dynamic load. The transmission of the vibration of components from the wheel through the main suspension and the placement of the tank through the skids and the ball joint into the tank body is investigated. The solution is also based on theoretical and numerical analysis and methodology of transmission of vibration energy and on measurement of vibration at the entry and exit measurement points of individual components of the chassis of the wagon as well as the sound generation by the tank body itself. FFT and modal analysis were used to obtain the vibration and sound parameters. The transmission loss of individual components containing vibro-isolation elements was measured and the results were compared with theory. Finally, this article aims at some effective measures that may have the effect of reducing the unwanted transmission of structural noise and thus reducing the emission and immission of noise having a negative impact on the environment and human health. (C) &quot;Advances in Acoustics, Noise and Vibration - 2021&quot; Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021. All rights reserved.

Název v anglickém jazyce

Use of vibro-isolation and non-conventional materials for reducing noise of railway wagons

Popis výsledku anglicky

The implementation of European directives in practice is also closely related to the reduction of noise emissions from cargo wagons with the aim of protecting the environment. Reduction of the dynamic load of railway wagons must be taken into account during their design using appropriate vibro-isolation and unconventional materials in the production of individual components so as to reduce the transmission of structural noise from its main source. The paper analyses the procedures and conditions to reduce the transmission of vibration to the undercarriage and its superstructure, which is a tank, using suitable vibro-isolation materials both in strength and with required transmission loss. For this purpose, the paper analyses the frequency distribution of the vibration generated by the main sources of the wagon and its attenuation on individual components. The modal analysis of the tank wagon was complemented by the gravitational impact of the wheel with the rail generating its dynamic load. The transmission of the vibration of components from the wheel through the main suspension and the placement of the tank through the skids and the ball joint into the tank body is investigated. The solution is also based on theoretical and numerical analysis and methodology of transmission of vibration energy and on measurement of vibration at the entry and exit measurement points of individual components of the chassis of the wagon as well as the sound generation by the tank body itself. FFT and modal analysis were used to obtain the vibration and sound parameters. The transmission loss of individual components containing vibro-isolation elements was measured and the results were compared with theory. Finally, this article aims at some effective measures that may have the effect of reducing the unwanted transmission of structural noise and thus reducing the emission and immission of noise having a negative impact on the environment and human health. (C) &quot;Advances in Acoustics, Noise and Vibration - 2021&quot; Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021. All rights reserved.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/EF16_019%2F0000867" target="_blank" >EF16_019/0000867: Centrum výzkumu pokročilých mechatronických systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021

ISBN

978-83-7880-799-5

ISSN

2329-3675

e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

Silesian University of Technology

Místo vydání

Gliwice

Místo konání akce

Hlivice

Datum konání akce

11. 7. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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