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Headliner Absorption Parameter Prediction and Modeling
Technical Paper
2015-01-2303
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The headliner system in a vehicle is an important element in vehicle noise control. In order to predict the performance of the headliner, it is necessary to develop an understanding of the substrate performance, the effect of air gaps, and the contribution from any acoustic pads in the system. Current Statistical Energy Analysis (SEA) models for predicting absorption performance of acoustic absorbers are based on material Biot properties. However, the resources for material Biot property testing are limited and cost is high. In this paper, modeling parameters for the headliner substrate are identified from a set of standard absorption measurements on substrates, using curve fitting and optimization techniques. The parameters are then used together with thickness/design information in a SEA model to predict the vehicle headliner system absorption performance.
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Authors
Citation
Tao, K., Parrett, A., and Nielubowicz, D., "Headliner Absorption Parameter Prediction and Modeling," SAE Technical Paper 2015-01-2303, 2015, https://doi.org/10.4271/2015-01-2303.Also In
References
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