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.

随着车辆声学舒适度的重要性日益增加，精确的吸声器模拟和表征方法逐渐成为人们关注的焦点。广泛使用的多孔质量弹簧系统由泡沫和厚层组成，其行为可能受到许多因素的强烈影响。其中包括装饰材料和令人兴奋的结构之间的边界条件。本文重点借助现代测量技术研究装饰结构界面现象。利用获得的实验结果，进行了数值研究以解释观察到的现象。特别是，参数优化算法已被实现用于内在材料参数表征的目的。此外，还进行了敏感性分析调查以证实所开发的方法。