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Integrated solutions for noise and vibration control in vehicles

Integrated solutions for noise and vibration control in vehicles
Integrated solutions for noise and vibration control in vehicles
A strong issue on the development of new vehicles is the weight reduction, required for the reduction of the fuel consumption and the CO2 emissions. The current vehicles have already a structure optimised to have low weight without reducing the required performances. However, there are some components of the structure that can be further reduced in weight still matching the resistance, crash and fatigue performances, but giving a poor performance in terms of noise and vibrations and increasing both the structure-borne and air-borne sound transmission.In the European FP7 project Green City Car, flexible, integrated passive and active solutions are developed permitting noise and vibration attenuation in vehicles equipped with the next generation of highly fuel-efficient two- or three cylinder internal combustion engines (ICE). Among others, shunted piezoelectric patches and electro-magnetic actuation as well as smart Helmholtz resonators are considered. Additionally, dedicated active noise control systems for the control of broadband rolling noise are developed. Besides, Green City Car addresses and implements novel damping materials and acoustic treatments as well as design approaches for tyres which are an important acoustic source for exterior and interior noise. This holistic approach should lead to a reduction in noise and vibrations levels in the order of 10 dB(A) and more measurable in the city car provided (not on component level). Currently, Green City Car finished its second year and first results are presented and discussed in this paper
smart structures, active and passive noise and vibration abatement, lightweight design
1877-0428
919-931
Bein, Thilo
a3ed12d3-dd00-4b7d-80f2-fc08ec1b6865
Elliott, S.J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Ferralli, Leonardo
23fdc353-7341-4763-b301-1a3c1491e10a
Casella, Mauro
0fb2b42a-2958-4f58-ba16-2bd2cfcb1cda
Meschke, Jens
dbe63fad-dcf1-4e21-8cb2-45d29803f4fc
Saemann, Ernst-Ulrich
f00cf6ac-e58c-4816-8f71-7345df8c550f
Nielsen, Finn-Kryger
30390b50-e590-4e69-8bbb-914e30bb974b
Kropp, Wolfgang
512fa657-308c-4708-9787-24d5394eb087
Bein, Thilo
a3ed12d3-dd00-4b7d-80f2-fc08ec1b6865
Elliott, S.J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Ferralli, Leonardo
23fdc353-7341-4763-b301-1a3c1491e10a
Casella, Mauro
0fb2b42a-2958-4f58-ba16-2bd2cfcb1cda
Meschke, Jens
dbe63fad-dcf1-4e21-8cb2-45d29803f4fc
Saemann, Ernst-Ulrich
f00cf6ac-e58c-4816-8f71-7345df8c550f
Nielsen, Finn-Kryger
30390b50-e590-4e69-8bbb-914e30bb974b
Kropp, Wolfgang
512fa657-308c-4708-9787-24d5394eb087

Bein, Thilo, Elliott, S.J., Ferralli, Leonardo, Casella, Mauro, Meschke, Jens, Saemann, Ernst-Ulrich, Nielsen, Finn-Kryger and Kropp, Wolfgang (2012) Integrated solutions for noise and vibration control in vehicles. [in special issue: Transport Research Arena 2012] Procedia - Social and Behavioral Sciences, 48, 919-931. (doi:10.1016/j.sbspro.2012.06.1069).

Record type: Article

Abstract

A strong issue on the development of new vehicles is the weight reduction, required for the reduction of the fuel consumption and the CO2 emissions. The current vehicles have already a structure optimised to have low weight without reducing the required performances. However, there are some components of the structure that can be further reduced in weight still matching the resistance, crash and fatigue performances, but giving a poor performance in terms of noise and vibrations and increasing both the structure-borne and air-borne sound transmission.In the European FP7 project Green City Car, flexible, integrated passive and active solutions are developed permitting noise and vibration attenuation in vehicles equipped with the next generation of highly fuel-efficient two- or three cylinder internal combustion engines (ICE). Among others, shunted piezoelectric patches and electro-magnetic actuation as well as smart Helmholtz resonators are considered. Additionally, dedicated active noise control systems for the control of broadband rolling noise are developed. Besides, Green City Car addresses and implements novel damping materials and acoustic treatments as well as design approaches for tyres which are an important acoustic source for exterior and interior noise. This holistic approach should lead to a reduction in noise and vibrations levels in the order of 10 dB(A) and more measurable in the city car provided (not on component level). Currently, Green City Car finished its second year and first results are presented and discussed in this paper

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More information

Published date: 2012
Keywords: smart structures, active and passive noise and vibration abatement, lightweight design
Organisations: Signal Processing & Control Grp

Identifiers

Local EPrints ID: 345533
URI: https://eprints.soton.ac.uk/id/eprint/345533
ISSN: 1877-0428
PURE UUID: 201e77c4-dc4b-4dce-a0b8-bf749c37e020

Catalogue record

Date deposited: 22 Nov 2012 16:55
Last modified: 18 Jul 2017 05:09

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