With the increasing importance of vehicle acoustic comfort, the topics of precise absorber simulation and characterization approaches are coming into forefront. The behavior of widely used porous mass-spring systems, consisting of foams coupled with heavy layers, can be strongly influenced by numerous factors. Among them are boundary conditions between trim materials and exciting structures. This paper focuses on investigating trim-structure interface phenomena with the help of modern measurement techniques. Using acquired experimental results, numerical studies have been conducted to account for observed phenomena. In particular, parameter optimization algorithms have been implemented for intrinsic material parameter characterization purposes. Moreover, sensitivity analysis investigations have been performed to substantiate the developed approaches.

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Vol. 31, No. 04

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Received 25 May 2023

Revised 31 August 2023

Accepted 31 August 2023

Published: 7 November 2023

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This is an Open Access article published by World Scientific Publishing Company. It is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND) License which permits use, distribution and reproduction, provided that the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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On the Effect of Boundary Conditions on Porous Absorber Characterization and Simulations

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