Research on Vibration Isolation and Thermal Insulation of the Polystyrene-Filled Sandwich Panel with Cross-Shaped Periodic Ribs

Abstract

This paper is aimed to study the vibration isolation and thermal insulation of the polystyrene-filled sandwich panels with cross-shaped ribs. Based on Blochs theorem, band structure of the sandwich panels can be obtained by Comsol Multiphysics software. According to the Fouriers law and the minimum resistance law, the equivalent thermal resistance can be calculated both numerically and theoretically. The studies show that this periodic sandwich panels exhibit a good performance on vibration isolation and thermal insulation.