Noise radiation reduction of a car dash panel

G. Necati, E. Doppenberg, Marko Antila

Research output: Contribution to conferenceConference articleScientific

4 Citations (Scopus)

Abstract

The front end structure of a vehicle containing the regular sound package on the dash panel was investigated after its sound radiation by exciting it with a shaker at a position where the RHS engine mount is positioned. The test object was investigated in the Transmission Loss Test Laboratory of the Ford-Werke AG, Cologne-Germany. The sound radiation of this structure in the frequency range of 200.600 Hz upon random excitation was investigated at delivery conditions as well as by applying an Active Noise Control (ANC) system consisting of innovative flat Electromechanical Film (EMFi) panels, batches of mini-loudspeakers and combinations of both as actuators. Prior to the active noise control exercise, preparatory tests were conducted on the test object to identify its vibro-acoustic behavior and thus to provide initial data for establishing the control strategy. Furthermore, chassis dyno tests on a car were conducted in advance to define a realistic excitation level for the shaker. Four basic test configurations with a total test case number of 12 were tested, where the actuator and sensor distribution over the dash surface as well as the control strategy were varied. The results indicated that the used ANC system enables the radiated sound power being attenuated up to 8 dB.
Original languageEnglish
Publication statusPublished - 2000
EventInternational Conference on Noise and Vibration Engineering, ISMA25 - Leuven, Belgium
Duration: 13 Sep 200015 Sep 2000

Conference

ConferenceInternational Conference on Noise and Vibration Engineering, ISMA25
Abbreviated titleISMA
CountryBelgium
CityLeuven
Period13/09/0015/09/00

Fingerprint

electromagnetic noise
acoustics
actuators
chassis
transmission loss
loudspeakers
physical exercise
radiation
Germany
excitation
engines
delivery
vehicles
frequency ranges
sensors
configurations

Cite this

Necati, G., Doppenberg, E., & Antila, M. (2000). Noise radiation reduction of a car dash panel. Paper presented at International Conference on Noise and Vibration Engineering, ISMA25, Leuven, Belgium.
Necati, G. ; Doppenberg, E. ; Antila, Marko. / Noise radiation reduction of a car dash panel. Paper presented at International Conference on Noise and Vibration Engineering, ISMA25, Leuven, Belgium.
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title = "Noise radiation reduction of a car dash panel",
abstract = "The front end structure of a vehicle containing the regular sound package on the dash panel was investigated after its sound radiation by exciting it with a shaker at a position where the RHS engine mount is positioned. The test object was investigated in the Transmission Loss Test Laboratory of the Ford-Werke AG, Cologne-Germany. The sound radiation of this structure in the frequency range of 200.600 Hz upon random excitation was investigated at delivery conditions as well as by applying an Active Noise Control (ANC) system consisting of innovative flat Electromechanical Film (EMFi) panels, batches of mini-loudspeakers and combinations of both as actuators. Prior to the active noise control exercise, preparatory tests were conducted on the test object to identify its vibro-acoustic behavior and thus to provide initial data for establishing the control strategy. Furthermore, chassis dyno tests on a car were conducted in advance to define a realistic excitation level for the shaker. Four basic test configurations with a total test case number of 12 were tested, where the actuator and sensor distribution over the dash surface as well as the control strategy were varied. The results indicated that the used ANC system enables the radiated sound power being attenuated up to 8 dB.",
author = "G. Necati and E. Doppenberg and Marko Antila",
year = "2000",
language = "English",
note = "International Conference on Noise and Vibration Engineering, ISMA25, ISMA ; Conference date: 13-09-2000 Through 15-09-2000",

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Necati, G, Doppenberg, E & Antila, M 2000, 'Noise radiation reduction of a car dash panel' Paper presented at International Conference on Noise and Vibration Engineering, ISMA25, Leuven, Belgium, 13/09/00 - 15/09/00, .

Noise radiation reduction of a car dash panel. / Necati, G.; Doppenberg, E.; Antila, Marko.

2000. Paper presented at International Conference on Noise and Vibration Engineering, ISMA25, Leuven, Belgium.

Research output: Contribution to conferenceConference articleScientific

TY - CONF

T1 - Noise radiation reduction of a car dash panel

AU - Necati, G.

AU - Doppenberg, E.

AU - Antila, Marko

PY - 2000

Y1 - 2000

N2 - The front end structure of a vehicle containing the regular sound package on the dash panel was investigated after its sound radiation by exciting it with a shaker at a position where the RHS engine mount is positioned. The test object was investigated in the Transmission Loss Test Laboratory of the Ford-Werke AG, Cologne-Germany. The sound radiation of this structure in the frequency range of 200.600 Hz upon random excitation was investigated at delivery conditions as well as by applying an Active Noise Control (ANC) system consisting of innovative flat Electromechanical Film (EMFi) panels, batches of mini-loudspeakers and combinations of both as actuators. Prior to the active noise control exercise, preparatory tests were conducted on the test object to identify its vibro-acoustic behavior and thus to provide initial data for establishing the control strategy. Furthermore, chassis dyno tests on a car were conducted in advance to define a realistic excitation level for the shaker. Four basic test configurations with a total test case number of 12 were tested, where the actuator and sensor distribution over the dash surface as well as the control strategy were varied. The results indicated that the used ANC system enables the radiated sound power being attenuated up to 8 dB.

AB - The front end structure of a vehicle containing the regular sound package on the dash panel was investigated after its sound radiation by exciting it with a shaker at a position where the RHS engine mount is positioned. The test object was investigated in the Transmission Loss Test Laboratory of the Ford-Werke AG, Cologne-Germany. The sound radiation of this structure in the frequency range of 200.600 Hz upon random excitation was investigated at delivery conditions as well as by applying an Active Noise Control (ANC) system consisting of innovative flat Electromechanical Film (EMFi) panels, batches of mini-loudspeakers and combinations of both as actuators. Prior to the active noise control exercise, preparatory tests were conducted on the test object to identify its vibro-acoustic behavior and thus to provide initial data for establishing the control strategy. Furthermore, chassis dyno tests on a car were conducted in advance to define a realistic excitation level for the shaker. Four basic test configurations with a total test case number of 12 were tested, where the actuator and sensor distribution over the dash surface as well as the control strategy were varied. The results indicated that the used ANC system enables the radiated sound power being attenuated up to 8 dB.

M3 - Conference article

ER -

Necati G, Doppenberg E, Antila M. Noise radiation reduction of a car dash panel. 2000. Paper presented at International Conference on Noise and Vibration Engineering, ISMA25, Leuven, Belgium.