Modeling Viscoelasticity of Loudspeaker Suspensions Using Retardation Spectra

Agerkvist FT, Ritter T. Modeling Viscoelasticity of Loudspeaker Suspensions Using Retardation Spectra. In: AES Convention 129. Audio Engineering Society; 2010. Paper 8217. Available from: https://aes.org/publications/elibrary-page/?id=15639

@inproceedings{Agerkvist2010_15639,
  author = {Agerkvist, Finn T. and Ritter, Tobias},
  title = {{Modeling Viscoelasticity of Loudspeaker Suspensions Using Retardation Spectra}},
  booktitle = {AES Convention 129},
  note = {Paper 8217},
  year = {2010},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15639}
}

TY  - CPAPER
TI  - Modeling Viscoelasticity of Loudspeaker Suspensions Using Retardation Spectra
AU  - Agerkvist, Finn T.
AU  - Ritter, Tobias
T2  - AES Convention 129
M1  - Paper 8217
PY  - 2010
DA  - 2010/11/06
UR  - https://aes.org/publications/elibrary-page/?id=15639
PB  - Audio Engineering Society
LA  - en
AB  - It is well known that, due to viscoelastic effects in the suspension, the displacement of the loudspeaker increases with decreasing frequency below the resonance. Present creep models are either not precise enough or purely empirical and not derived from the basis of physics. In this investigation, the viscoelastic retardation spectrum, which provides a more fundamental description of the suspension viscoelasticity, is first used to explain the accuracy of the empirical LOG creep model (Knudsen et al.). Then, two extensions to the LOG model are proposed which include the low and high frequency limit of the compliance, not accounted for in the original LOG model. The new creep models are verified by measurements on two 5.5“ loudspeakers with different surrounds.
ER  -