TY - GEN
T1 - Airborne transfer path analysis for an e-compressor
AU - Mueller, T.
AU - Haeussler, M.
AU - Sedlmair, S.
AU - Rixen, D. J.
N1 - Publisher Copyright:
© 2020 Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics. All rights reserved.
PY - 2020
Y1 - 2020
N2 - The goal of this paper is to provide a method for airborne source description of the EC and to determine the airborne sound contribution at the driver's ear. The radiation of the EC was approximated by six acoustic monopoles emitting a volume acceleration. The characterization was conducted with the help of noise transfer functions (NTFs) and operational measurements in an anechoic chamber. Volume acceleration sources were used to measure the NTFs. The validation of the source identification was performed in a changed environment and a vehicle. The first results for the sound pressure predictions at the driver's ear showed good agreement to the reference measurements. However, in the high-frequency range, the prediction was partly deviating from the reference. To further improve the accuracy, an artificial EC was constructed to replace the volume sources for the NTF measurements. Thereby the predictions could be improved in the high-frequency range. These results are also validated in a changed environment.
AB - The goal of this paper is to provide a method for airborne source description of the EC and to determine the airborne sound contribution at the driver's ear. The radiation of the EC was approximated by six acoustic monopoles emitting a volume acceleration. The characterization was conducted with the help of noise transfer functions (NTFs) and operational measurements in an anechoic chamber. Volume acceleration sources were used to measure the NTFs. The validation of the source identification was performed in a changed environment and a vehicle. The first results for the sound pressure predictions at the driver's ear showed good agreement to the reference measurements. However, in the high-frequency range, the prediction was partly deviating from the reference. To further improve the accuracy, an artificial EC was constructed to replace the volume sources for the NTF measurements. Thereby the predictions could be improved in the high-frequency range. These results are also validated in a changed environment.
UR - http://www.scopus.com/inward/record.url?scp=85105820865&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85105820865
T3 - Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics
SP - 3351
EP - 3364
BT - Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics
A2 - Desmet, W.
A2 - Pluymers, B.
A2 - Moens, D.
A2 - Vandemaele, S.
PB - KU Leuven - Departement Werktuigkunde
T2 - 2020 International Conference on Noise and Vibration Engineering, ISMA 2020 and 2020 International Conference on Uncertainty in Structural Dynamics, USD 2020
Y2 - 7 September 2020 through 9 September 2020
ER -