Numerical-experimental vibro-acoustic characterisation of trim materials using a novel test setup

摘要

In this paper an experimental-numerical approach is presented to study the NVH (Noise, Vibration and Harshness) behaviour of trim materials and lightweight structures using a novel test setup which allows for a fast and clear characterisation of these materials, together with a novel technique for vibro-acoustic simulation, the Wave Based Method (WBM). The combination of the high numerical efficiency of the WBM and the versatility of the aforementioned test setup shows great potential for the characterisation of trim materials, both for internal acoustic configurations and transmission cases.