An Investigation of the Coupling Between the Passenger Compartment and the Trunk in a Sedan 2007-01-2356
The low frequency acoustic response of the passenger compartment (cavity) in sedans is considered with respect to the coupling between the cavity and the trunk. Both acoustic (via holes in the parcel shelf or behind the backrest of the rear seat), and structural (via the parcel shelf itself, or the panel of the backrest) mechanisms are investigated by both test and CAE. It is found that the peaks in acoustic response of the cavity at low frequencies are due to both acoustic and structural phenomena. However, the acoustic ones can be effectively blocked by proper design of the trim. Recommendations concerning modeling of acoustic effects in sedans are formulated.
Citation: Pietrzyk, A. and Bengtsson, T., "An Investigation of the Coupling Between the Passenger Compartment and the Trunk in a Sedan," SAE Technical Paper 2007-01-2356, 2007, https://doi.org/10.4271/2007-01-2356. Download Citation
Author(s):
Andrzej Pietrzyk, Tage Bengtsson
Affiliated:
Volvo Car Corporation
Pages: 8
Event:
SAE 2007 Noise and Vibration Conference and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Passenger compartments
Acoustics
Trunks
CAD, CAM, and CAE
Simulation and modeling
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