Sound Insulation Performance of Honeycomb-hole Panels

Abstract

Honeycomb structure is nowadays used widely by the industrial sector. Using the threemicrophone method of measuring sound transmission loss (STL) in the standing wave tube, the finite element analysis model of the honeycomb-hole panels was established to calculate STL. Sound insulation performance of honeycomb-hole panel was analyzed by using the analysis model. The effects of holes element spacing, wall thickness of holes element, panel thickness, loss factor and Young’s elastic modulus on sound insulation performance of the honeycomb-hole panel have been investigated and summarized: wall thickness of holes element, panel thickness and Young’s elastic modulus have greater effect on sound insulation performance. The result provides a reference for the engineering design and optimization of such kind of structures.