Active noise control in cars based on utilising ElectroMechanical Film (EMFi) based actuators: (invited)

Hannu Nykänen, Marko Antila, Jukka Lekkala, Roberto Aimasso, Paolo Delzanno, Görgun Necati

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

In the European Union funded FACTS project the development of Active Noise Control (ANC) systems for vehicles utilising distributed actuators based on ElectroMechanical Film (EMFi) technology was started. Two car demonstrations were built, one for the "traditional" active engine order noise control and one for the attenuation of broad band noise radiation of the dash panel, caused by the vibrations of the panel. Results show that noise reduction using membrane mode EMFi actuators is fully effective at higher engine orders (the noise peaks are reduced to background noise level), when the frequencies are above 200 Hz and the noise levels are reasonable (below 80 dB). Also the broad band noise radiation caused by the dash panel vibrations could be attenuated some 5 dB in the frequency range 150 - 300 Hz, but some amplification was present at higher frequencies
Original languageEnglish
Title of host publicationINTER-NOISE and NOISE-CON Congress and Conference Proceedings, InterNoise01
Pages1564-1569
Number of pages6
Publication statusPublished - 2001
MoE publication typeB3 Non-refereed article in conference proceedings
EventInter-Noise 2001 - Haag, Netherlands
Duration: 27 Aug 200130 Aug 2001

Conference

ConferenceInter-Noise 2001
CountryNetherlands
CityHaag
Period27/08/0130/08/01

Fingerprint

actuators
electromagnetic noise
engines
broadband
European Union
vibration
background noise
noise reduction
vehicles
frequency ranges
attenuation
membranes

Cite this

Nykänen, H., Antila, M., Lekkala, J., Aimasso, R., Delzanno, P., & Necati, G. (2001). Active noise control in cars based on utilising ElectroMechanical Film (EMFi) based actuators: (invited). In INTER-NOISE and NOISE-CON Congress and Conference Proceedings, InterNoise01 (pp. 1564-1569)
Nykänen, Hannu ; Antila, Marko ; Lekkala, Jukka ; Aimasso, Roberto ; Delzanno, Paolo ; Necati, Görgun. / Active noise control in cars based on utilising ElectroMechanical Film (EMFi) based actuators : (invited). INTER-NOISE and NOISE-CON Congress and Conference Proceedings, InterNoise01. 2001. pp. 1564-1569
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abstract = "In the European Union funded FACTS project the development of Active Noise Control (ANC) systems for vehicles utilising distributed actuators based on ElectroMechanical Film (EMFi) technology was started. Two car demonstrations were built, one for the {"}traditional{"} active engine order noise control and one for the attenuation of broad band noise radiation of the dash panel, caused by the vibrations of the panel. Results show that noise reduction using membrane mode EMFi actuators is fully effective at higher engine orders (the noise peaks are reduced to background noise level), when the frequencies are above 200 Hz and the noise levels are reasonable (below 80 dB). Also the broad band noise radiation caused by the dash panel vibrations could be attenuated some 5 dB in the frequency range 150 - 300 Hz, but some amplification was present at higher frequencies",
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Nykänen, H, Antila, M, Lekkala, J, Aimasso, R, Delzanno, P & Necati, G 2001, Active noise control in cars based on utilising ElectroMechanical Film (EMFi) based actuators: (invited). in INTER-NOISE and NOISE-CON Congress and Conference Proceedings, InterNoise01. pp. 1564-1569, Inter-Noise 2001, Haag, Netherlands, 27/08/01.

Active noise control in cars based on utilising ElectroMechanical Film (EMFi) based actuators : (invited). / Nykänen, Hannu; Antila, Marko; Lekkala, Jukka; Aimasso, Roberto; Delzanno, Paolo; Necati, Görgun.

INTER-NOISE and NOISE-CON Congress and Conference Proceedings, InterNoise01. 2001. p. 1564-1569.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

TY - GEN

T1 - Active noise control in cars based on utilising ElectroMechanical Film (EMFi) based actuators

T2 - (invited)

AU - Nykänen, Hannu

AU - Antila, Marko

AU - Lekkala, Jukka

AU - Aimasso, Roberto

AU - Delzanno, Paolo

AU - Necati, Görgun

PY - 2001

Y1 - 2001

N2 - In the European Union funded FACTS project the development of Active Noise Control (ANC) systems for vehicles utilising distributed actuators based on ElectroMechanical Film (EMFi) technology was started. Two car demonstrations were built, one for the "traditional" active engine order noise control and one for the attenuation of broad band noise radiation of the dash panel, caused by the vibrations of the panel. Results show that noise reduction using membrane mode EMFi actuators is fully effective at higher engine orders (the noise peaks are reduced to background noise level), when the frequencies are above 200 Hz and the noise levels are reasonable (below 80 dB). Also the broad band noise radiation caused by the dash panel vibrations could be attenuated some 5 dB in the frequency range 150 - 300 Hz, but some amplification was present at higher frequencies

AB - In the European Union funded FACTS project the development of Active Noise Control (ANC) systems for vehicles utilising distributed actuators based on ElectroMechanical Film (EMFi) technology was started. Two car demonstrations were built, one for the "traditional" active engine order noise control and one for the attenuation of broad band noise radiation of the dash panel, caused by the vibrations of the panel. Results show that noise reduction using membrane mode EMFi actuators is fully effective at higher engine orders (the noise peaks are reduced to background noise level), when the frequencies are above 200 Hz and the noise levels are reasonable (below 80 dB). Also the broad band noise radiation caused by the dash panel vibrations could be attenuated some 5 dB in the frequency range 150 - 300 Hz, but some amplification was present at higher frequencies

M3 - Conference article in proceedings

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EP - 1569

BT - INTER-NOISE and NOISE-CON Congress and Conference Proceedings, InterNoise01

ER -

Nykänen H, Antila M, Lekkala J, Aimasso R, Delzanno P, Necati G. Active noise control in cars based on utilising ElectroMechanical Film (EMFi) based actuators: (invited). In INTER-NOISE and NOISE-CON Congress and Conference Proceedings, InterNoise01. 2001. p. 1564-1569