Optimization of Loudspeakers Using Material and Shape Optimization


The design of mechanical components in loudspeakers are mostly based on traditional materials and geometrical configuration. This project seeks to tailor the sound emission characteristics both in terms of spatial directivity of produced sound, but also temporal characteristics such as nonlinear distortion. This is achieved by utilizing the properties and advantages of acoustic metamaterials.



The hypothesis is, that the optimal physical designs and their material configuration can be created with gradient based techniques such as topology or shape optimization. The main part to be optimized is the loudspeaker diaphragm. For the optimization to work a coupled mechanical-acoustic FE software should be developed and relevant objective functions found.



The scope of this project is to design novel realisable loudspeaker components that can operate under un-ideal conditions. 


The project will be completed in 2021



Finn T. Agerkvist & Jakob S. Jensen (DTU)


Daniel Gert Nielsen
PhD student
DTU Electrical Engineering
7 APRIL 2020