AES E-Library

AES E-Library

Visco-elastic Aspects of Loudspeaker Drivers

Document Thumbnail

Damping materials used in drivers often give rise to changes in resonance characteristics that can affect the acoustic properties. We study with several techniques the properties of the viscoelastic materials commonly applied to the surround or spider. Measurements are taken of the resonance characteristics with increasing temperature, which show a significant reduction of the suspension stiffness. Exercising the driver reduces the stiffness as well, and this is partly due to a combination of mechanical and thermal effects. An attempt is made to characterize the changes in terms of temperature and the history of the mechanical motion. Differential scanning calorimetry (DSC) measurements are made of some samples in an attempt to understand the underlying physical behaviour.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

AES - Audio Engineering Society