Finite-Element Method of Modeling of Eddy Currents and Their Influence on Nonlinear Distortion in Electrodynamic Loudspeakers

Voishvillo A, Mazin V. Finite-Element Method of Modeling of Eddy Currents and Their Influence on Nonlinear Distortion in Electrodynamic Loudspeakers. In: AES Convention 99. Audio Engineering Society; 1995. Paper 4085. Available from: https://aes.org/publications/elibrary-page/?id=7681

@inproceedings{Voishvillo1995_7681,
  author = {Voishvillo, Alexander and Mazin, Victor},
  title = {{Finite-Element Method of Modeling of Eddy Currents and Their Influence on Nonlinear Distortion in Electrodynamic Loudspeakers}},
  booktitle = {AES Convention 99},
  note = {Paper 4085},
  year = {1995},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=7681}
}

TY  - CPAPER
TI  - Finite-Element Method of Modeling of Eddy Currents and Their Influence on Nonlinear Distortion in Electrodynamic Loudspeakers
AU  - Voishvillo, Alexander
AU  - Mazin, Victor
T2  - AES Convention 99
M1  - Paper 4085
PY  - 1995
DA  - 1995/10/06
UR  - https://aes.org/publications/elibrary-page/?id=7681
PB  - Audio Engineering Society
LA  - en
AB  - A nonlinear model of a loudspeaker motor that takes into consideration eddy currents is proposed. Pole piece and top plate surfaces adjacent to the voice coil gap are modeled by frequency-dependent ring conductors. The resulting flux caused by the permanent magnet, voice coil current, and eddy currents flowing in ring conductors is calculated by FEM. Nonlinear distortion and the impedance curve are derived from the solution of differential equations describing voice coil movement.
ER  -