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Experimental Determination of Low Frequency Noise Contributions of Interior Vehicle Body Panels in Normal Operation
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English
Abstract
Low frequency noise from engine- and wheel-vibrations often dominates the interior noise spectrum in vehicles. For the optimization of vehicle bodies it is necessary to know the contribution of individual body panels to sound pressures at the passengers ear.
An experimental approach is presented which makes use of reciprocal acoustic transfer function measurements and surface acceleration measurements in normal road operation. This method, called Airborne Source Quantification, has been applied as a diagnostic tool to the interior noise of a four cylinder diesel engined van.
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Citation
Linden, P. and Varet, P., "Experimental Determination of Low Frequency Noise Contributions of Interior Vehicle Body Panels in Normal Operation," SAE Technical Paper 960194, 1996, https://doi.org/10.4271/960194.Also In
Advances in Component Designs for Noise and Vibration Control
Number: SP-1147; Published: 1996-02-01
Number: SP-1147; Published: 1996-02-01
References
- WYCKAERT K. AUGUSTINOVICZ F. Vibro-acoustic Modal Analysis Reciprocity Model Symmetry and Modal Validity 1995 International Seminar on Modal Analysis Leuven
- VAN DER LINDEN P.J.G. FYN J.K. Using Mechanical-Acoustic reciprocity for diagnosis of structure borne sound in vehicles SAE 93 1340
- VERHEIJ J.W. Multi-path sound transfer from desilient Mounted Shipboard Machinery Ph.D. Thesis 1982