Simplified Porous Panel Subsystem for SEA Modeling

Typical Statistical Energy Analysis (SEA) plate/shell subsystems usually assume that the panel is impervious to airflow. However, they are not capable of modeling a trim element or similar component that allows air to pass through it, e.g., a headliner or package tray. The theory of a simplified porous panel is presented for the coupling loss factors of a cavity-panel-cavity connection and the theoretical prediction is compared to measurements for various airflow resistance values. A discussion on the use of the porous panel subsystem for automotive SEA modeling is presented.