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Modelling the vibrational characteristics and radiated sound power for a Y25-type bogie and wagon

Modelling the vibrational characteristics and radiated sound power for a Y25-type bogie and wagon
Modelling the vibrational characteristics and radiated sound power for a Y25-type bogie and wagon
A theoretical investigation has considered the vibrational characteristics of the bogie and wagon to quantify the noise freight wagons. This study presents the analysis of the bogie by finite element methods (FEM) to cover the lower-frequency range. The wagon has been analyzed using a statistical energy analysis (SEA) approach. The accelerances on the bogie have been calculated and the sensitivity to excitation evaluated. The calculation of sound power for force inputs has also been determined. Complementary experimental results show the predictions to be in good agreement. The wagon has not been examined specifically to identify detailed response and radiated sound; instead it is possible to consider the response of larger identifiable structural areas such as the doors, walls, roof, etc. The response of these larger areas can also be used to predict the transfer functions from radiated sound power for forces applied at the connection points. Good agreement has been obtained with experimental measurements.
0022-460X
791-803
Ferguson, N.S.
8a69e5ee-7176-473b-a9b0-1101ff1f92b2
Ferguson, N.S.
8a69e5ee-7176-473b-a9b0-1101ff1f92b2

Ferguson, N.S. (2000) Modelling the vibrational characteristics and radiated sound power for a Y25-type bogie and wagon. Journal of Sound and Vibration, 231 (3), 791-803. (doi:10.1006/jsvi.1999.2563).

Record type: Article

Abstract

A theoretical investigation has considered the vibrational characteristics of the bogie and wagon to quantify the noise freight wagons. This study presents the analysis of the bogie by finite element methods (FEM) to cover the lower-frequency range. The wagon has been analyzed using a statistical energy analysis (SEA) approach. The accelerances on the bogie have been calculated and the sensitivity to excitation evaluated. The calculation of sound power for force inputs has also been determined. Complementary experimental results show the predictions to be in good agreement. The wagon has not been examined specifically to identify detailed response and radiated sound; instead it is possible to consider the response of larger identifiable structural areas such as the doors, walls, roof, etc. The response of these larger areas can also be used to predict the transfer functions from radiated sound power for forces applied at the connection points. Good agreement has been obtained with experimental measurements.

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Published date: 2000

Identifiers

Local EPrints ID: 9914
URI: http://eprints.soton.ac.uk/id/eprint/9914
ISSN: 0022-460X
PURE UUID: 111beae7-4b0b-48a5-a43b-571541a9a807

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Date deposited: 27 Oct 2004
Last modified: 15 Jul 2019 19:37

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Author: N.S. Ferguson

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