Multi-physics Analysis of a Loudspeaker for the Elderly

This article simulates the acoustic phenomenon of a vented loudspeaker dedicated for the elderly. The goal of the simulation for the vented loudspeaker for the elderly are its sensitivity and the directivity of the electro-mechanical system. The simulation described here revealed how the extended membrane and ladder-like horn influence the curve of sensitivity. The simulation results reveal that the acoustic-shell interaction behavior in frequency domain is elucidated from the multi-physics analysis. This simulation reproduces the coupling between the vibration for the extended membrane and ladder-like horn and the pressure fluctuation of the surrounding air.